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36 results on '"Prelz Francesco"'

1. Overcoming obstacles to IPv6 on WLCG

Author

Babik Marian, Bly Martin, Buraglio Nick, Chown Tim, Christidis Dimitrios, Chudoba Jiri, DeMar Phil, Flix Molina José, Grigoras Costin, Hoeft Bruno, Ito Hiro, Kelsey David, Martelli Edoardo, McKee Shawn, Misa Moreira Carmen, Nandakumar Raja, Ohrenberg Kars, Prelz Francesco, Rand Duncan, Sciabà Andrea, and Skirvin Tim

Subjects
Physics, QC1-999
Abstract

The transition of the Worldwide Large Hadron Collider Computing Grid (WLCG) storage services to dual-stack IPv6/IPv4 is almost complete; all Tier-1 and 94% of Tier-2 storage are IPv6 enabled. While most data transfers now use IPv6, a significant number of IPv4 transfers still occur even when both endpoints support IPv6. This paper presents the ongoing efforts of the HEPiX IPv6 working group to steer WLCG toward IPv6-only services by investigating and fixing the obstacles to the use of IPv6 and identifying cases where IPv4 is used when IPv6 is available. Removing IPv4 use is essential for the long-term agreed goal of IPv6-only access to resources within WLCG, thus eliminating the complexity and security concerns associated with dual-stack services. We present our achievements and ongoing challenges as we navigate the final stages of the transition from IPv4 to IPv6 within WLCG.

Published
2024
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2. Toward a pulsed antihydrogen beam for WEP tests in AEgIS

Author

Huck Saiva, Auzins Marcis, Bergmann Benedikt, Burian Petr, Brusa Roberto S., Camper Antoine, Caravita Ruggero, Castelli Fabrizio, Ciuryło Roman, Consolati Giovanni, Doser Michael, Farricker Aaron, Glöggler Lisa T., Graczykowski Łukasz, Grosbart Malgorzata, Guatieri Francesco, Gusakova Natali, Haider Stefan, Janik Malgorzata, Kasprowicz Grzegorz, Khatri Ghanshyambhai, Kłosowski Łukasz, Kornakov Georgy, Krumins Valts, Lappo Lidia, Linek Adam, Malbrunot Chloé, Mariazzi Sebastiano, Nowak Lilian, Nowicka Dorota, Oswald Emmanuel, Penasa Luca, Petracek Vojtech, Piwiński Mariusz, Pospisil Stanislav, Povolo Luca, Prelz Francesco, Rangwala Sadiq, Rienäcker Benjamin, Rodin Volodymyr, Røhne Ole M., Sandaker Heidi, Smolyanskiy Petr, Sowiński Tomasz, Tefelski Dariusz, Volponi Marco, Welsch Carsten, Wolz Tim, Zawada Michal, Zielinski Jakub, Zimmer Christian, and Zurlo Nicola

Subjects
Physics, QC1-999
Abstract

The AEg̅IS collaboration at CERN’s AD produces antihydrogen atoms in the form of a pulsed, isotropic source with a precisely defined formation time. AEg̅IS has recently undergone major upgrades to fully benefit from the increased number of colder antiprotons provided by the new ELENA decelerator and to move toward forming a horizontal beam to directly investigate the influence of gravity on the H̅ atoms, thereby probing the Weak Equivalence Principle for antimatter. This contribution gives an overview of these upgrades as well as subsequent results from the first beam times with ELENA.

Published
2023
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3. CIRCUS: an autonomous control system for antimatter, atomic and quantum physics experiments

Author

Volponi, Marco, Huck, Saiva, Caravita, Ruggero, Zielinski, Jakub, Kornakov, Georgy, Kasprowicz, Grzegorz, Nowicka, Dorota, Rauschendorfer, Tassilo, Rienäcker, Benjamin, Prelz, Francesco, Auzins, Marcis, Bergmann, Benedikt, Burian, Petr, Brusa, Roberto Sennen, Camper, Antoine, Castelli, Fabrizio, Ciuryło, Roman, Consolati, Giovanni, Doser, Michael, Glöggler, Lisa, Graczykowski, Łukasz, Grosbart, Malgorzata, Guatieri, Francesco, Gusakova, Nataly, Gustafsson, Fredrik, Haider, Stefan, Janik, Malgorzata, Khatri, Gunn, Kłosowski, Łukasz, Krumins, Valts, Lappo, Lidia, Linek, Adam, Malamant, Jan, Mariazzi, Sebastiano, Penasa, Luca, Petracek, Vojtech, Piwiński, Mariusz, Pospisil, Stanislav, Povolo, Luca, Rangwala, Sadiqali, Rawat, Bharat, Rodin, Volodymyr, Røhne, Ole, Sandaker, Heidi, Smolyanskiy, Petr, Sowiński, Tomasz, Tefelski, Dariusz, Vafeiadis, Theodoros, Welsch, Carsten, Wolz, Tim, Zawada, Michal, and Zurlo, Nicola

Subjects
Quantum Physics, General Relativity and Quantum Cosmology, Physics - Atomic Physics, Physics - Instrumentation and Detectors
Abstract

A powerful and robust control system is a crucial, often neglected, pillar of any modern, complex physics experiment that requires the management of a multitude of different devices and their precise time synchronisation. The AEgIS collaboration presents CIRCUS, a novel, autonomous control system optimised for time-critical experiments such as those at CERN's Antiproton Decelerator and, more broadly, in atomic and quantum physics research. Its setup is based on Sinara/ARTIQ and TALOS, integrating the ALPACA analysis pipeline, the last two developed entirely in AEgIS. It is suitable for strict synchronicity requirements and repeatable, automated operation of experiments, culminating in autonomous parameter optimisation via feedback from real-time data analysis. CIRCUS has been successfully deployed and tested in AEgIS; being experiment-agnostic and released open-source, other experiments can leverage its capabilities.

Published
2024
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4. IPv6-only networking on WLCG

Author

Babik Marian, Bly Martin, Chown Tim, Christidis Dimitrios, Chudoba Jiři, Condurache Catalin, Finnern Thomas, Froy Terry, Grigoras Costin, Hafeez Kashif, Hoeft Bruno, Kelsey David, Lopes Raul, López Muñoz Fernando, Martelli Edoardo, Nandakumar Raja, Ohrenberg Kars, Prelz Francesco, Rand Duncan, and Sciabà Andrea

Subjects
Physics, QC1-999
Abstract

The use of IPv6 on the general Internet continues to grow. The transition of the Worldwide Large Hadron Collider Computing Grid (WLCG) central and storage services to dual-stack IPv6/IPv4 is progressing well, thus enabling the use of IPv6-only CPU resources as agreed by the WLCG Management Board and presented by us at earlier CHEP conferences. During the last year, the HEPiX IPv6 Working Group has continued to chase and support the transition to dual-stack services. We present the status of the transition and some tests that have been made of IPv6-only CPU showing the successful use of IPv6 protocols in accessing WLCG services. The dual-stack deployment does however result in a networking environment which is more complex than when using just IPv6. The group is investigating the removal of the IPv4 protocol in places. We present the areas where this could be useful together with our future plans.

Published
2020
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5. IPv6 in production: its deployment and usage in WLCG

Author

Babik Marian, Bly Martin, Chown Tim, Chudoba Jiři, Condurache Catalin, Dewhurst Alastair, Espinal Curull Xavier, Finnern Thomas, Froy Terry, Grigoras Costin, Hafeez Kashif, Hoeft Bruno, Ito Hironori, Kelsey David P., López Muñoz Fernando, Martelli Edoardo, Nandakumar Raja, Ohrenberg Kars, Prelz Francesco, Rand Duncan, Sciabà Andrea, Tigerstedt Ulf, and Van Dok Dennis

Subjects
Physics, QC1-999
Abstract

The fraction of general internet traffic carried over IPv6 continues to grow rapidly. The transition of WLCG central and storage services to dual-stack IPv4/IPv6 is progressing well, thus enabling the use of IPv6-only CPU resources as agreed by the WLCG Management Board and presented by us at CHEP2016. By April 2018, all WLCG Tier-1 data centres should have provided access to their services over IPv6. The LHC experiments have requested all WLCG Tier-2 centres to provide dual-stack access to their storage by the end of LHC Run 2. This paper reviews the status of IPv6 deployment in WLCG.

Published
2019
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6. Imaging a positronium cloud in a 1 Tesla

Author

Camper Antoine, Aghion Stefano, Amsler Claude, Antonello Massimiliano, Belov Alexander, Bonomi Germano, Brusa Roberto, Caccia Massimo, Caravita Ruggero, Castelli Fabrizio, Cerchiari Giovanni, Comparat Daniel, Consolati Giovanni, Demetrio Andrea, Di Noto Lea, Doser Michael, Evans Craig, Fanì Mattia, Ferragut Rafael, Fesel Julian, Fontana Andrea, Gerber Sebastian, Giammarchi Marco, Gligorova Angela, Guatieri Francesco, Hackstock Philip, Haider Stefan, Hinterberger Alexander, Holmestad Helga, Kellerbauer Alban, Khalidova Olga, Krasnický Daniel, Lagomarsino Vittorio, Lansonneur Pierre, Lebrun Patrice, Malbrunot Chloé, Mariazzi Sebastiano, Marton Johann, Matveev Viktor, Müller Simon, Nebbia Giancarlo, Nedelec Patrick, Oberthaler Markus, Pagano Davide, Penasa Luca, Petracek Vojtech, Prelz Francesco, Prevedelli Marco, Rienaecker Benjamin, Robert Jacques, Røhne Ole, Rotondi Alberto, Sandaker Heidi, Santoro Romualdo, Smestad Lillian, Sorrentino Fiodor, Testera Gemma, Tietje Ingmari, Vujanovic Milena, Widmann Eberhard, Yzombard Pauline, Zimmer Christian, Zmeskal Johann, and Zurlo Nicola

Subjects
Physics, QC1-999
Abstract

We report on recent developments in positronium work in the frame of antihydrogen production through charge exchange in the AEgIS collaboration [1]. In particular, we present a new technique based on spatially imaging a cloud of positronium by collecting the positrons emitted by photoionization. This background free diagnostic proves to be highly efficient and opens up new opportunities for spectroscopy on antimatter, control and laser manipulation of positronium clouds as well as Doppler velocimetry.

Published
2019
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8. Pulsed production of antihydrogen

Author

Amsler, Claude, Antonello, Massimiliano, Belov, Alexander, Bonomi, Germano, Brusa, Roberto Sennen, Caccia, Massimo, Camper, Antoine, Caravita, Ruggero, Castelli, Fabrizio, Cheinet, Patrick, Comparat, Daniel, Consolati, Giovanni, Demetrio, Andrea, Di Noto, Lea, Doser, Michael, Fanì, Mattia, Ferragut, Rafael, Fesel, Julian, Gerber, Sebastian, Giammarchi, Marco, Gligorova, Angela, Glöggler, Lisa Theresa, Guatieri, Francesco, Haider, Stefan, Hinterberger, Alexander, Kellerbauer, Alban, Khalidova, Olga, Krasnický, Daniel, Lagomarsino, Vittorio, Malbrunot, Chloé, Mariazzi, Sebastiano, Matveev, Viktor, Müller, Simon, Nebbia, Giancarlo, Nedelec, Patrick, Nowak, Lilian, Oberthaler, Markus, Oswald, Emmanuel, Pagano, Davide, Penasa, Luca, Petracek, Vojtech, Povolo, Luca, Prelz, Francesco, Prevedelli, Marco, Rienäcker, Benjamin, Røhne, Ole, Rotondi, Alberto, Sandaker, Heidi, Santoro, Romualdo, Testera, Gemma, Tietje, Ingmari, Toso, Valerio, Wolz, Tim, Yzombard, Pauline, Zimmer, Christian, and Zurlo, Nicola

Published
2021
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9. Correction to: Compression of a mixed antiproton and electron non-neutral plasma to high densities: Eur. Phys. J. D 72: 76 (2018), DOI: 10.1140/epjd/e2018-80617-x

Author

Aghion, Stefano, Amsler, Claude, Bonomi, Germano, Brusa, Roberto S., Caccia, Massimo, Caravita, Ruggero, Castelli, Fabrizio, Cerchiari, Giovanni, Comparat, Daniel, Consolati, Giovanni, Demetrio, Andrea, Di Noto, Lea, Doser, Michael, Evans, Craig, Faní, Mattia, Ferragut, Rafael, Fesel, Julian, Fontana, Andrea, Gerber, Sebastian, Giammarchi, Marco, Gligorova, Angela, Guatieri, Francesco, Haider, Stefan, Hinterberger, Alexander, Holmestad, Helga, Kellerbauer, Alban, Khalidova, Olga, Krasnický, Daniel, Lagomarsino, Vittorio, Lansonneur, Pierre, Lebrun, Patrice, Malbrunot, Chloé, Mariazzi, Sebastiano, Marton, Johann, Matveev, Victor, Mazzotta, Zeudi, Müller, Simon R., Nebbia, Giancarlo, Nedelec, Patrick, Oberthaler, Markus, Pacifico, Nicola, Pagano, Davide, Penasa, Luca, Petracek, Vojtech, Prelz, Francesco, Prevedelli, Marco, Rienaecker, Benjamin, Robert, Jacques, Røhne, Ole M., Rotondi, Alberto, Sandaker, Heidi, Santoro, Romualdo, Smestad, Lillian, Sorrentino, Fiodor, Testera, Gemma, Tietje, Ingmari C., Widmann, Eberhard, Yzombard, Pauline, Zimmer, Christian, Zmeskal, Johann, Zurlo, Nicola, and Antonello, Massimiliano

Published
2019
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10. Compression of a mixed antiproton and electron non-neutral plasma to high densities

Author

Aghion, Stefano, Amsler, Claude, Bonomi, Germano, Brusa, Roberto S., Caccia, Massimo, Caravita, Ruggero, Castelli, Fabrizio, Cerchiari, Giovanni, Comparat, Daniel, Consolati, Giovanni, Demetrio, Andrea, Di Noto, Lea, Doser, Michael, Evans, Craig, Fanì, Mattia, Ferragut, Rafael, Fesel, Julian, Fontana, Andrea, Gerber, Sebastian, Giammarchi, Marco, Gligorova, Angela, Guatieri, Francesco, Haider, Stefan, Hinterberger, Alexander, Holmestad, Helga, Kellerbauer, Alban, Khalidova, Olga, Krasnický, Daniel, Lagomarsino, Vittorio, Lansonneur, Pierre, Lebrun, Patrice, Malbrunot, Chloé, Mariazzi, Sebastiano, Marton, Johann, Matveev, Victor, Mazzotta, Zeudi, Müller, Simon R., Nebbia, Giancarlo, Nedelec, Patrick, Oberthaler, Markus, Pacifico, Nicola, Pagano, Davide, Penasa, Luca, Petracek, Vojtech, Prelz, Francesco, Prevedelli, Marco, Rienaecker, Benjamin, Robert, Jacques, Røhne, Ole M., Rotondi, Alberto, Sandaker, Heidi, Santoro, Romualdo, Smestad, Lillian, Sorrentino, Fiodor, Testera, Gemma, Tietje, Ingmari C., Widmann, Eberhard, Yzombard, Pauline, Zimmer, Christian, Zmeskal, Johann, Zurlo, Nicola, and Antonello, Massimiliano

Published
2018
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11. Brixsino High-Flux Dual X-Ray and THz Radiation Source Based on Energy Recovery Linacs

Author

Drebot, Illya, Abbracchio, Maria Pia, Altilia, S., Andreone, Antonello, Bacci, Alberto, Bertucci, Michele, Bosotti, Angelo, Broggi, Francesco, Calandrino, Riccardo, Canella, Francesco, Capra, Stefano, Cardarelli, Paolo, Cialdi, Simone, Cipriani, Daniele, Citterio, Mauro, Delvecchio, Antonella, Esposito, Adolfo, Ferragut, Rafael, Galzerano, Gianluca, Giammarchi, Marco, Giannotti, Dario, Giove, Dario, Koral, Can, Latorre, Stefano, Lenardi, Cristina, Masullo, Maria Rosaria, Mazaheri, Z., Meroni, Chiara, Mettivier, Giovanni, Michelato, Paolo, Monaco, Laura, Opromolla, Michele, Pagani, Carlo, Paparella, Rocco, Papari, G.P., Paparo, Domenico, Paroli, Bruno, Passarelli, Andrea, Paternò, Gianfranco, Petrillo, Vittoria, Piccirillo, B., Prelz, Francesco, Puppin, Ezio, Rossetti Conti, Marcello, Rossi, Andrea, Rossi, Lucio, Rubano, A., Ruijter, Marcel, Russo, Paolo, Samsam, Sanae, Serafini, Luca, Sertore, Daniele, Sorbi, Massimo, Statera, Marco, Suerra, Edoardo, Taibi, Angelo, Torresin, Alberto, Torri, Verardo, Vanzulli, A., Frank Zimmermann (CERN, Meyrin, Switzerland), Hitoshi Tanaka (RIKEN, Hyogo, Japan), Porntip Sudmuang (SRLI, Nakhon, Thailand), Prapong Klysubun (SRLI, Nakhon, Thailand), Prapaiwan Sunwong (SRLI, Nakhon, Thailand), Thakonwat Chanwattana (SRLI, Nakhon, Thailand), Christine Petit-Jean-Genaz (CERN, Meyrin, Switzerland), Volker R.W. Schaa (GSI, Darmstadt, Germany), Drebot, Illya, Pia Abbracchio, Maria, Altilia, S., Andreone, Antonello, Bacci, Alberto, Bertucci, Michele, Bosotti, Angelo, Broggi, Francesco, Calandrino, Riccardo, Canella, Francesco, Capra, Stefano, Cardarelli, Paolo, Cialdi, Simone, Cipriani, Daniele, Citterio, Mauro, Delvecchio, Antonella, Esposito, Adolfo, Ferragut, Rafael, Galzerano, Gianluca, Giammarchi, Marco, Giannotti, Dario, Giove, Dario, Koral, Can, Latorre, Stefano, Lenardi, Cristina, Masullo, Maria Rosaria, Mazaheri, Z., Meroni, Chiara, Mettivier, Giovanni, Michelato, Paolo, Monaco, Laura, Opromolla, Michele, Pagani, Carlo, Paparella, Rocco, Papari, G. P., Paparo, Domenico, Paroli, Bruno, Passarelli, Andrea, Paternò, Gianfranco, Petrillo, Vittoria, Piccirillo, B., Prelz, Francesco, Puppin, Ezio, Rossetti Conti, Marcello, SALVO ROSSI, Andrea, Rossi, Lucio, Rubano, A., Ruijter, Marcel, Russo, Paolo, Samsam, Sanae, Serafini, Luca, Sertore, Daniele, Sorbi, Massimo, Statera, Marco, Suerra, Edoardo, Taibi, Angelo, Torresin, Alberto, Torri, Verardo, and Vanzulli, A.

Subjects
electron, Energy Recovery Linac, laser, electron, radiation, photon, cavity, CW-SC, photon, Physics::Optics, MC2: Photon Sources and Electron Accelerators, cavity, ICS, CW-SC, Energy Recovery Linac, Accelerator Physics, NO, laser, radiation, ICS, Physics::Accelerator Physics
Abstract

We present the conceptual design of a compact light source named BriXSinO. BriXSinO was born as demonstrator of the Marix project, but it is also a dual high flux radiation source Inverse Compton Source (ICS) of X-ray and Free-Electron Laser of THz spectral range radiation conceived for medical applications and general applied research. The accelerator is a push-pull CW-SC Energy Recovery Linac (ERL) based on superconducting cavities technology and allows to sustain MW-class beam power with almost just one hundred kW active power dissipation/consumption. ICS line produces 33 keV monochromatic X-Rays via Compton scattering of the electron beam with a laser system in Fabry-Pérot cavity at a repetition rate of 100 MHz. The THz FEL oscillator is based on an undulator imbedded in optical cavity and generates THz wavelengths from 15 to 50 micron., Proceedings of the 13th International Particle Accelerator Conference, IPAC2022, Bangkok, Thailand

Published
2022

12. Pulsed Production of Antihydrogen in AEgIS

Author

Zurlo, Nicola, primary, AMSLER, Claude, additional, Antonello, Massimiliano, additional, Belov, Alexander S., additional, Bonomi, Germano, additional, Brusa, Roberto Sennen, additional, Caccia, Massimo, additional, Camper, Antoine, additional, Caravita, Ruggero, additional, Castelli, Fabrizio, additional, Cheinet, Patrick, additional, Comparat, Daniel, additional, Consolati, Giovanni, additional, Demetrio, Andrea, additional, Di noto, Lea, additional, Doser, Michael, additional, Fanì, Mattia, additional, Ferragut, Rafael, additional, Fesel, Julian, additional, Gerber, Sebastian, additional, Giammarchi, Marco, additional, Gligorova, Angela, additional, Glöggler, Lisa Theresa, additional, Guatieri, Francesco, additional, Haider, Stefan, additional, Hinterberger, Alexander, additional, Kellerbauer, Alban, additional, Khalidova, Olga, additional, Krasnický, Daniel, additional, Lagomarsino, Vittorio, additional, Malbrunot, Chloé, additional, Mariazzi, Sebastiano, additional, Matveev, Viktor, additional, Müller, Simon, additional, Nebbia, Giancarlo, additional, Nedelec, Patrick, additional, Nowak, Lilian, additional, Oberthaler, Markus, additional, Oswald, Emmanuel, additional, PAGANO, Davide, additional, Penasa, Luca, additional, Petracek, Vojtech, additional, Povolo, Luca, additional, Prelz, Francesco, additional, Prevedelli, Marco, additional, Rienäcker, Benjamin, additional, Røhne, Ole, additional, Rotondi, Alberto, additional, Sandaker, Heidi, additional, SANTORO, Romualdo, additional, Testera, Gemma, additional, Tietje, Ingmari, additional, Toso, Valerio, additional, Wolz, Tim, additional, Yzombard, Pauline, additional, and Zimmer, Christian, additional

Published
2022
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13. Experiments with mid-heavy antiprotonic atoms in AEgIS

Author

Kornakov, Georgy, primary, Auzins, Marcis, additional, Bergmann, Benedikt, additional, Burian, Petr, additional, Bonomi, Germano, additional, Sennen Brusa, Roberto, additional, Camper, Antoine, additional, Caravita, Ruggero, additional, Castelli, Fabrizio, additional, Cheinet, Patrick, additional, Ciurylo, Roman, additional, Comparat, Daniel, additional, Consolati, Giovanni, additional, Doser, Michael, additional, Gjersdal, Havard, additional, Teresa Gloggler, Lisa, additional, Graczykowski, Lukasz, additional, Guatieri, Francesco, additional, Haider, Stefan, additional, Huck, Saiva, additional, Janik, Malgorzata, additional, Kasprowicz, Grzegorz, additional, Khatri, Gunn, additional, Klosowski, Lukasz, additional, Lappo, Lidia, additional, Malbrunot, Chloe, additional, Mariazzi, Sebastiano, additional, Nebbia, Giancarlo, additional, Nowak, Lilian, additional, Nowicka, Dorota, additional, Oswald, Emanuel, additional, PAGANO, Davide, additional, Penasa, Luca, additional, Petracek, Vojtech, additional, Piwinski, Mariusz, additional, Pospišil, Stanislav, additional, Povolo, Luca, additional, Prelz, Francesco, additional, Rangwala, Sadiqali, additional, Rienacker, Benjamin, additional, Rotondi, Alberto, additional, Rohne, Ole, additional, Sandaker, Heidi, additional, Štekl, Ivan, additional, Tefelski, Dariusz, additional, Christa Tietje, Ingmari, additional, Volponi, Marco, additional, Wolz, Tim, additional, Zawada, Michal, additional, Zimmer, Christian, additional, and Zurlo, Nicola, additional

Published
2022
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14. AEgIS experiment: Towards antihydrogen beam production for antimatter gravity measurements

Author

Mariazzi, Sebastiano, Aghion, Stefano, Amsler, Claude, Ariga, Akitaka, Ariga, Tomoko, Belov, Alexandre S., Bonomi, Germano, Bräunig, Philippe, Brusa, Roberto S., Bremer, Johan, Cabaret, Louis, Canali, Carlo, Caravita, Ruggero, Castelli, Fabrizio, Cerchiari, Giovanni, Cialdi, Simone, Comparat, Daniel, Consolati, Giovanni, Dassa, Luca, Derking, Jan Hendrik, Di Domizio, Sergio, Di Noto, Lea, Doser, Michael, Dudarev, Alexey, Ereditato, Antonio, Ferragut, Rafael, Fontana, Andrea, Genova, Pablo, Giammarchi, Marco, Gligorova, Angela, Gninenko, Sergei N., Hogan, Stephen D., Haider, Stefan, Jordan, Elena, Jørgensen, Lars V., Kaltenbacher, Thomas, Kawada, Jiro, Kellerbauer, Alban, Kimura, Mitsuhiro, Knecht, Andreas, Krasnický, Daniel, Lagomarsino, Vittorio, Lehner, Sebastian, Malbrunot, Chloe, Matveev, Viktor A., Merkt, Frederic, Moia, Fabio, Nebbia, Giancarlo, Nédélec, Patrick, Oberthaler, Markus K., Pacifico, Nicola, Petráček, Vojtech, Pistillo, Ciro, Prelz, Francesco, Prevedelli, Marco, Regenfus, Christian, Riccardi, Cristina, Røhne, Ole, Rotondi, Alberto, Sandaker, Heidi, Scampoli, Paola, Storey, James, Subieta Vasquez, Martin A., Špaček, Michal, Testera, Gemma, Vaccarone, Renzo, Villa, Fabio, Widmann, Eberhard, Zavatarelli, Sandra, and Zmeskal, Johann

Published
2014
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15. X-Ray ICS Source Based on Modified Push-Pull ERLs

Author

Drebot, Illya, Bacci, Alberto, Bosotti, Angelo, Broggi, Francesco, Cardarelli, Paolo, Cialdi, Simone, Esposito, Adolfo, Faillace, Luigi, Gallo, Alessandro, Galzerano, Gianluca, Gambaccini, Mauro, Giannotti, Dario, Giove, Dario, Mettivier, Giovanni, Michelato, Paolo, Monaco, Laura, Paparella, Rocco, Paternò, Gianfranco, Petrillo, Vittoria, Prelz, Francesco, Puppin, Ezio, Rossetti Conti, Marcello, Rossi, Andrea, Russo, Paolo, Sarno, Antonio, Serafini, Luca, Sertore, Daniele, Statera, Marco, Taibi, Angelo, Torri, Verardo, and Vaccarezza, Cristina

Subjects
WG5: ERL applications, Socio-culturale, Accelerator Physics
Abstract

We present the conceptual designs of BriXS and BriXSino (a minimal test-bench demonstrator of proof of principle) for a compact X-ray Source based on innovative push-pull ERLs. BriXS, the first stage of the Marix project, is a Compton X-ray source based on superconducting cavity technology with energy recirculation and on a laser system in Fabry-Pérot cavity at a repetition rate of 100 MHz, producing 20-180 keV radiation for medical applications. The energy recovery scheme based on a modified folded push-pull CW-SC twin Linac ensemble allows to sustain MW-class beam power with almost just one hundred kW active power dissipation/consumption., Proceedings of the 63th ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs, ERL2019, Berlin, Germany

Published
2020
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16. BriXs Ultra High Flux Inverse Compton Source Based on Modified Push-Pull Energy Recovery Linacs

Author

Drebot, Illya, primary, Bacci, Alberto, additional, Bosotti, Angelo, additional, Broggi, Francesco, additional, Canella, Francesco, additional, Cardarelli, Paolo, additional, Cialdi, Simone, additional, Faillace, Luigi, additional, Galzerano, Gianluca, additional, Gambaccini, Mauro, additional, Giannotti, Dario, additional, Giove, Dario, additional, Mettivier, Giovanni, additional, Michelato, Paolo, additional, Monaco, Laura, additional, Paparella, Rocco, additional, Paternó, Gianfranco, additional, Petrillo, Vittoria, additional, Prelz, Francesco, additional, Rossetti Conti, Marcello, additional, Rossi, Andrea Renato, additional, Russo, Paolo, additional, Sarno, Antonio, additional, Suerra, Edoardo, additional, Taibi, Angelo, additional, and Serafini, Luca, additional

Published
2019
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17. Status of compact inverse Compton sources in Italy: BriXS and STAR

Author

Faillace, Luigi, primary, Agostino, Raffaele G., additional, Bacci, Alberto, additional, Barberi, Riccardo, additional, Bosotti, Angelo, additional, Broggi, Francesco, additional, Cardarelli, Paolo, additional, Cialdi, Simone, additional, Drebot, Illya, additional, Formoso, Vincenzo, additional, Gambaccini, Mauro, additional, Ghedini, Mauro, additional, Giannotti, Dario, additional, Giove, Dario, additional, Martire, Fiorello, additional, Mettivier, Giovanni, additional, Michelato, Paolo, additional, Monaco, Laura, additional, Paparella, Rocco, additional, Paternó, Gianfranco, additional, Petrillo, Vittoria, additional, Prelz, Francesco, additional, Puppin, Ezio, additional, Rossetti Conti, Marcello, additional, Rossi, Andrea R., additional, Russo, Paolo, additional, Sarno, Antonio, additional, Sertore, Daneile, additional, Taibi, Angelo, additional, and Serafini, Luca, additional

Published
2019
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18. Optimisation Study of the Fabry-Pérot Optical Cavity for the MARIX/BRIXS Compton X-Ray Source

Author

Drebot, Illya, Bacci, Alberto, Bosotti, Angelo, Broggi, Francesco, Calandrino, Riccardo, Cardarelli, Paolo, Cialdi, Simone, Curatolo, Camilla, Delvecchio, Antonella, Esposito, Adolfo, Faillace, Luigi, Gallo, Alessandro, Galzerano, Gianluca, Gambaccini, Mauro, Giannotti, Dario, Giove, Dario, Mettivier, Giovanni, Michelato, Paolo, Monaco, Laura, Paparella, Rocco, Paternò, Gianfranco, Petrillo, Vittoria, Placidi, Massimo, Prelz, Francesco, Puppin, Ezio, Rossetti Conti, Marcello, Rossi, Andrea, Russo, Paolo, Sarno, Antonio, Serafini, Luca, Sertore, Daniele, Statera, Marco, Tagliaferri, Alberto, Taibi, Angelo, Torri, Verardo, Turchetti, Giorgio, and Vaccarezza, Cristina

Subjects
A24 Accelerators and Storage Rings, Other, Physics::Accelerator Physics, Physics::Optics, 02 Photon Sources and Electron Accelerators, Accelerator Physics, NO
Abstract

We present the study of the optimization of the optical cavity parameters, in order to maximise the flux of scattered photons in the Compton scattering process. In the optimisation, we compensate the losses of the photon number due to the elliptical shape of the laser pulse in optical cavity with a high focusing electron beam., Proceedings of the 9th Int. Particle Accelerator Conf., IPAC2018, Vancouver, BC, Canada

Published
2018

19. The MariX source (Multidisciplinary Advanced Research Infrastructure with X-rays)

Author

Petrillo, Vittoria, Bacci, Alberto, Bosotti, Angelo, Broggi, Francesco, Calandrino, Riccardo, Camera, Franco, Cardarelli, Paolo, Castelli, Fabrizio, Castoldi, Andrea, Cialdi, Simone, Coelli, Simone, Curatolo, Camilla, Delvecchio, Antonella, Di Mitri, Simone, Drebot, Illya, Esposito, Adolfo, Faillace, Luigi, Gallo, Alessandro, Galzerano, Gianluca, Gambaccini, Mauro, Ghiringhelli, Giacomo, Giannotti, Dario, Giove, Dario, Groppi, Flavia, Guazzoni, Chiara, Meroni, Chiara, Mettivier, Giovanni, Michelato, Paolo, Monaco, Laura, Moretti, Marco, Onida, Giovanni, Paparella, Rocco, Paroli, Bruno, Paternò, Gianfranco, Perini, Laura, Pinotti, Ermanno, Piovella, Nicola, Placidi, Massimo, Prelz, Francesco, Puppin, Ezio, Rossetti Conti, Marcello, Rossi, Andrea, Rossi, Giorgio, Russo, Paolo, Saban, Roberto, Sarno, Antonio, Serafini, Luca, Sertore, Daniele, Statera, Marco, Stellato, Francesco, Tagliaferri, Alberto, Taibi, Angelo, Tomasi, Fabio, Torri, Verardo, Turchetti, Giorgio, and Vaccarezza, Cristina

Subjects
A23 Other Linac-Based Photon Sources, 02 Photon Sources and Electron Accelerators, NO, Accelerator Physics
Abstract

MariX (Multidisciplinary advanced research infra-structure with X-rays) is a joint project of INFN and University of Milan, aiming at developing a twin X-ray Source of advanced characteristics for the future Sci-entific Campus of the University of Milan. Presently in its design study phase, it will be built in the post Expo area located in north-west Milan district. The first component of the X-source MariX is BriXS (Bright and compact X-ray Source), a Compton X-ray source based on superconducting cavities technology for the electron beam with energy recirculation and on a laser system in Fabry-Pérot cavity at a repetition rate of 100 MHz, producing 20-180 keV radiation for medical applications. The BriXS accelerator is also serving as injector of a 3.8 GeV superconductive linac, driving a X-ray FEL at 1 MHz, for providing coherent, moderate flux radiation at 0.3-10 KeV at 1 MHz. Scientific case, layout and typical parameters of MariX will be discussed., Proceedings of the 9th Int. Particle Accelerator Conf., IPAC2018, Vancouver, BC, Canada

Published
2018
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20. DA-DA: a method to ease ipv6 rollout at non-slaac sites

Author

Prelz, Francesco

Subjects
SLAAC, IPv4 addresses, INFN-16-12-CCR, DNS-driven Allocation of DHCPv6 Addresses
Abstract

The exhaustion of IPv4 addresses is handled in version 6 of the IP suite of protocols via a massive (x296) increase of the available address space. EUI-64 based automatic addressing (SLAAC) becomes possible, but it is not the only option for address allocation in this wide space - in certain cases it may not be an option at all. A mechanism (DA-DA: DNS-driven Allocation of DHCPv6 Addresses) is proposed to provide public addresses to dual-stack IPv4/v6 hosts via DHCPv6 and to populate the DHCPv6 configuration database in the course of the IPv4 ® IPv6 transition. Address assignment is driven by the DNS contents only and (similarly to SLAAC) provides hosts with access to the public IPv6 Internet with no user intervention. A reference implementation (in the form of an ISC DHCPv6 patch) is available.

Published
2016
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21. Configuration of User/Node affinity in a Sendmail+Dovecot+Squirrelmail e-mail cluster

Author

Bensi, Michele, Barberis, Stefano, Mezzadri, Massimo, and Prelz, Francesco

Subjects
Shared filesystem, User/node, E-mail boxes, INFN-16-11-CCR
Abstract

The storage of user e-mail boxes on a shared filesystem and their read/write access on multiple cluster nodes requires special care to benefit from file persistence in the filesystem cache on each node and to prevent system response to be significantly degraded by frequent file synchronisations onto physical storage. The simplest measure towards this goal is to divide access to nodes on a per-user basis, while keeping the cluster failsafe. In this paper we share a few non-obvious details for the configuration of such user/node affinity in sendmail, dovecot, squirrelmail.

Published
2016
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22. Positron Manipulation and Positronium Laser Excitation in AEgIS

Author

Mariazzi, Sebastiano, primary, Caravita, Ruggero, additional, Aghion, Stefano, additional, Amsler, Claude, additional, Ariga, Akitaka, additional, Ariga, Tomoko, additional, Bonomi, Germano, additional, Bräunig, Philippe, additional, Bremer, Johan, additional, Brusa, Roberto S., additional, Cabaret, Luis, additional, Caccia, Massimo, additional, Castelli, Fabrizio, additional, Cerchiari, G., additional, Chlouba, Karl, additional, Cialdi, Simone, additional, Comparat, Daniel, additional, Consolati, Giovanni, additional, Demetrio, Andrea, additional, di Noto, Lea, additional, Doser, Michael, additional, Dudarev, Alexey, additional, Ereditato, Antonio, additional, Evans, Craig, additional, Ferragut, Rafael, additional, Fesel, Julian, additional, Fontana, Andrea, additional, Forslund, Ola K., additional, Gerber, Sebastian, additional, Giammarchi, Marco, additional, Gligorova, Angela, additional, Gninenko, Sergei, additional, Guatieri, Francesco, additional, Haider, Stefan, additional, Holmestad, Helga, additional, Huse, Torkjell, additional, Jernelv, Ine L., additional, Jordan, Elena, additional, Kaltenbacher, Thomas, additional, Kellerbauer, Alban, additional, Kimura, Mitsuhiro, additional, Koetting, Torsten, additional, Krasnicky, Daniel, additional, Lagomarsino, Vittorio, additional, Lansonneur, Pierre, additional, Lebrun, Patrice, additional, Lehner, Sebastian, additional, Liberadzka, Joanna, additional, Malbrunot, Chloe, additional, Marx, Lisa, additional, Matveev, Viktor, additional, Mazzotta, Zeudi, additional, Nebbia, Giancarlo, additional, Nedelec, Patrick, additional, Oberthaler, Markus, additional, Pacifico, Nicola, additional, Pagano, Davide, additional, Penasa, Luca, additional, Petracek, Vojtech, additional, Pistillo, Ciro, additional, Prelz, Francesco, additional, Prevedelli, Marco, additional, Ravelli, Luca, additional, Resch, Laura, additional, Rienäcker, Benjamin, additional, Røhne, Ole M., additional, Rosenberger, Stefan, additional, Rotondi, Alberto, additional, Sacerdoti, Michele, additional, Sandaker, Heidi, additional, Santoro, Romualdo, additional, Scampoli, Paola, additional, Sorrentino, Fiodor, additional, Spacek, Michal, additional, Storey, James, additional, Strojek, Izabela M., additional, Testera, Gemma, additional, Tietje, Ingmari, additional, Vamosi, Stefan, additional, Widmann, Eberhard, additional, Yzombard, Pauline, additional, Zavatarelli, Sandra, additional, and Zmeskal, Johann, additional

Published
2017
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23. The AEgIS Experiment

Author

Knecht, Andreas, Aghion, Stefano, Ahlén, O., Amsler, Claude, Ariga, Akitaka, Ariga, Tomoko, Belov, Alexander S., Bonomi, Germano, Bräunig, Philippe, Bremer, Johan, Brusa, Roberto S., Cabaret, Louis, Canali, Carlo, Caravita, Ruggero, Castelli, Fabrizio, Cerchiari, Giovanni, Cialdi, Simone, Comparat, Daniel, Consolati, Giovanni, Derking, Jan H., Di Domizio, Sergio, Di Noto, Lea, Doser, Michael, Dudarev, Alexey V., Ereditato, Antonio, Ferragut, Rafael, Fontana, Andrea, Genova, Pablo, Giammarchi, Marco G., Gligorova, Angela, Gninenko, Sergei N., Haider, Stefan, Hogan, Stephen D., Huse, Torkjell, Jordan, Elena J., Jørgensen, Lars V., Kaltenbacher, Thomas, Kawada, Jiro, Kellerbauer, Alban I., Kimura, Mitsuhiro, Krasnický, Daniel, Lagomarsino, Vittorio, Lehner, Sebastian, Malbrunot, Chloé, Mariazzi, Sebastiano, Matveev, Viktor A., Merkt, Frédéric, Moia, Fabio, Nebbia, Giancarlo, Nédélec, Patrick, Oberthaler, Markus K., Pacifico, Nicola, Petráček, Vojtěch, Pistillo, Ciro, Prelz, Francesco, Prevedelli, Marco, Regenfüs, Christian, Riccardi, Cristina, Røhne, Ole M., Rotondi, Alberto, Storey, James W., Subieta Vasquez, Martin A., Špaček, Michal, Testera, Gemma, Trezzi, Davide, Vaccarone, Renzo, Widmann, Eberhard, Zavatarelli, Sandra, and Zmeskal, Johannes

Subjects
Antimatter, Gravity, Antihydrogen
Abstract

The AEgIS experiment aims at performing the first test of the Weak Equivalence Principle of General Relativity in the antimatter sector by measuring the gravitational acceleration acting on a beam of cold antihydrogen to a precision of 1%. The installation of the apparatus is making good progress and large parts were taken into operation. Parasitic detector tests during the beamtime in December 2012 gave essential input for an optimal moiré deflectometer and the detector layout necessary to perform the gravity measurement., Hyperfine Interactions, 228 (1-3), ISSN:0304-3843, ISSN:0304-3834, ISSN:1572-9540, Proceedings of the 11th International Conference on Low Energy Antiproton Physics (LEAP 2013) held in Uppsala, Sweden, 10–15 June, 2013

Published
2014

24. The gLite Workload Management System

Author

Petronzio Luca, Giacomini Francesco, Prelz Francesco, Pacini Fabrizio, Maraschini Alessandro, Marzolla Moreno, Monforte Salvatore, Cecchi Marco, Dorigo Alvise, Ghiselli Antonia, Capannini Fabio, M. Cecchi, F. Capannini, A. Dorigo, A. Ghiselli, F. Giacomini, A. Maraschini, M. Marzolla, S. Monforte, F. Pacini, L. Petronzio, M. Sgaravatto, N. ABDENNADHER, D. PETCU, and F. Prelz

Subjects
Service (systems architecture), GRID COMPUTING, Database, Computer science, Workload, Workload Management, User requirements document, computer.software_genre, Grid, SCHEDULING, Resource (project management), Added value, Key (cryptography), Reference implementation, WORKLOAD MANAGEMENT SYSTEM, computer
Abstract

The gLite Workload Management System represents a key entry point to high-end services available on a Grid. Being designed as part of the European Grid within the six years long EU-funded EGEE project, the WMS is meant to provide reliable and efficient distribution and management of end-user requests. The WMS basically translates user requirements and preferences into specific operations and decisions—dictated by the general status of all other Grid services—while taking responsibility to bring requests to successful completion. The WMS implements an “early binding” approach to meta-scheduling as a neat Grid-aware solution, able to optimise resource access and to satisfy requests for computation together with data. Several added value features are provided for job submission, different job types are supported from simple batch to a variety of compounds, all described in this paper. Conceived to be a scalable service, the WMS has been deployed in different physical layouts according to specific needs for performance, thanks to the modularity of its design. In this paper we show what has been achieved to provide adequate workload and management components, suitable to be deployed in a production-quality Grid while covering the design and development of the gLite WMS.

Published
2009

25. Planning on the Grid: a Status Report

Author

Garzoglio, Gabriele, Giacomini, Francesco, Prelz, Francesco, Sgaravatto, Massimo, Tannenbaum, Todd, and Terekhov, Igor

Abstract

Traditional batch job schedulers are a poor fit for a grid computing environment. In order to respond to the grid scheduling challenges, the client must perform planning. In this paper, we expound upon the differences between planning versus scheduling, and present two grid projects which utilize a ClassAd matchmaking framework to enable planning on the grid. Planning for purposes of job placement within the EU DataGrid and DZero SAMGrid projects will be explored.

Published
2002
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26. Report on the INFN - GRID Globus Evaluation

Author

Alfieri, Roberto, Anglano, Cosimo, Barbera, Roberto, Biasotto, Massimo, Cerello, Piergiorgio, Chierici, Andrea, Controzzi, Andrea, Donno, Flavia, Ferrari, Tiziana, Fonti, Luigi, Forte, Antonio, Gaido, Luciano, Giacomini, Francesco, Gianoli, Alberto, Grandi, Claudio, Guarise, Andrea, Lippi, Ivano, Biondo, Giuseppe Lo, Lusso, Stefano, Marzola, Lorenzo, Prelz, Francesco, Resconi, Silvia, Rocca, Carlo, Semeria, Franco, Sciabà, Andrea, Sgaravatto, Massimo, Spataro, Fabio, Tortone, Gennaro, Finzi, Giulia Vita, and Xie, Zhen

Abstract

This are port on the Globus soft ware evaluation activities that have taken place within the INFN-GRID project (INFN-GRIDWorkPackage1).

Published
2001
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27. New developments in the CREAM Computing Element

Author

Andreetto, Paolo, primary, Bertocco, Sara, additional, Capannini, Fabio, additional, Cecchi, Marco, additional, Dorigo, Alvise, additional, Frizziero, Eric, additional, Gianelle, Alessio, additional, Mezzadri, Massimo, additional, Monforte, Salvatore, additional, Prelz, Francesco, additional, Rebatto, David, additional, Sgaravatto, Massimo, additional, and Zangrando, Luigi, additional

Published
2012
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28. Workload management in the EMI project

Author

Andreetto, Paolo, primary, Bertocco, Sara, additional, Capannini, Fabio, additional, Cecchi, Marco, additional, Dorigo, Alvise, additional, Frizziero, Eric, additional, Gianelle, Alessio, additional, Kretsis, Aristotelis, additional, Mezzadri, Massimo, additional, Monforte, Salvatore, additional, Prelz, Francesco, additional, Rebatto, David, additional, Sgaravatto, Massimo, additional, and Zangrando, Luigi, additional

Published
2012
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29. CREAM Computing Element: a status update

Author

Andreetto, Paolo, primary, Bertocco, Sara, additional, Capannini, Fabio, additional, Cecchi, Marco, additional, Dorigo, Alvise, additional, Frizziero, Eric, additional, Gianelle, Alessio, additional, Mezzadri, Massimo, additional, Monforte, Salvatore, additional, Prelz, Francesco, additional, Rebatto, David, additional, Sgaravatto, Massimo, additional, and Zangrando, Luigi, additional

Published
2012
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30. CREAM Computing Element: status and new developments

Author

SGARAVATTO, Massimo, primary, Andreetto, Paolo, additional, Bertocco, Sara, additional, Dorigo, Alvise, additional, Frizziero, Eric, additional, Gianelle, Alessio, additional, Mezzadri, Massimo, additional, Prelz, Francesco, additional, Rebatto, David, additional, and Zangrando, Luigi, additional

Published
2012
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32. Pulsed production of antihydrogen

Author

G. Nebbia, Marco Prevedelli, M. Antonello, I. C. Tietje, B. Rienäcker, Daniel Comparat, Alberto Rotondi, M. Fanì, Sebastiano Mariazzi, O. Khalidova, Roberto S. Brusa, Nicola Zurlo, Davide Pagano, A. Camper, S.R. Müller, Markus K. Oberthaler, V. Petracek, Ole Røhne, C. Zimmer, Patrick Nedelec, Giovanni Consolati, Valerio Toso, Chloé Malbrunot, A. Hinterberger, Germano Bonomi, Lea Di Noto, P. Cheinet, Rafael Ferragut, Luca Povolo, P. Yzombard, Marco Giammarchi, Lilian Nowak, F. Prelz, J. Fesel, Sebastian Gerber, Ruggero Caravita, Emmanuel Oswald, Heidi Sandaker, Romualdo Santoro, Alban Kellerbauer, A. S. Belov, Luca Penasa, F. Guatieri, Angela Gligorova, Lisa Theresa Glöggler, Viktor Matveev, T. Wolz, Claude Amsler, D. Krasnický, A. Demetrio, G. Testera, Fabrizio Castelli, Michael Doser, S. Haider, Massimo Caccia, V. Lagomarsino, Laboratoire Aimé Cotton (LAC), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Laboratoire Kastler Brossel (LKB [Collège de France]), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Collège de France (CdF (institution)), Amsler, Claude, Antonello, Massimiliano, Belov, Alexander, Bonomi, Germano, Brusa, Roberto Sennen, Caccia, Massimo, Camper, Antoine, Caravita, Ruggero, Castelli, Fabrizio, Cheinet, Patrick, Comparat, Daniel, Consolati, Giovanni, Demetrio, Andrea, Di Noto, Lea, Doser, Michael, Fanì, Mattia, Ferragut, Rafael, Fesel, Julian, Gerber, Sebastian, Giammarchi, Marco, Gligorova, Angela, Glöggler, Lisa Theresa, Guatieri, Francesco, Haider, Stefan, Hinterberger, Alexander, Kellerbauer, Alban, Khalidova, Olga, Krasnický, Daniel, Lagomarsino, Vittorio, Malbrunot, Chloé, Mariazzi, Sebastiano, Matveev, Viktor, Müller, Simon, Nebbia, Giancarlo, Nedelec, Patrick, Nowak, Lilian, Oberthaler, Marku, Oswald, Emmanuel, Pagano, Davide, Penasa, Luca, Petracek, Vojtech, Povolo, Luca, Prelz, Francesco, Prevedelli, Marco, Rienäcker, Benjamin, Røhne, Ole, Rotondi, Alberto, Sandaker, Heidi, Santoro, Romualdo, Testera, Gemma, Tietje, Ingmari, Toso, Valerio, Wolz, Tim, Yzombard, Pauline, Zimmer, Christian, and Zurlo, Nicola

Subjects
Physics::General Physics, experimental methods, QC1-999, positronium, antihydrogen: annihilation, General Physics and Astronomy, Astrophysics, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, law.invention, Positronium, antihydrogen: energy levels, symbols.namesake, law, 0103 physical sciences, Atom, Physics::Atomic and Molecular Clusters, antimatter, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], antihydrogen: temperature, Physics::Atomic Physics, 010306 general physics, Antihydrogen, Physics, laser: pulsed, Antimatter gravity, atom, antihydrogen: production, Laser, charge exchange, anti-p, electric field, positron: beam, QB460-466, electromagnetic, injection, equivalence principle, Antiproton, Antimatter, Excited state, Rydberg formula, symbols, Atomic physics, Particle Physics - Experiment, experimental results
Abstract

Antihydrogen atoms with K or sub-K temperature are a powerful tool to precisely probe the validity of fundamental physics laws and the design of highly sensitive experiments needs antihydrogen with controllable and well defined conditions. We present here experimental results on the production of antihydrogen in a pulsed mode in which the time when 90% of the atoms are produced is known with an uncertainty of ~250 ns. The pulsed source is generated by the charge-exchange reaction between Rydberg positronium atoms—produced via the injection of a pulsed positron beam into a nanochanneled Si target, and excited by laser pulses—and antiprotons, trapped, cooled and manipulated in electromagnetic traps. The pulsed production enables the control of the antihydrogen temperature, the tunability of the Rydberg states, their de-excitation by pulsed lasers and the manipulation through electric field gradients. The production of pulsed antihydrogen is a major landmark in the AE $$\bar{g}$$ IS experiment to perform direct measurements of the validity of the Weak Equivalence Principle for antimatter. Antihydrogen atoms are a unique type of antimatter that can be used to probe small violations of fundamental laws of physics. The authors present experimental results obtained with the AEgIS project at CERN for the production of antihydrogen atoms (Hbar) via charge exchange with laser excited positronium that allow for precise timing of Hbar production.

Published
2021
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33. Status of compact inverse Compton sources in Italy: BriXS and STAR

Author

Dario Giove, L. Faillace, Vittoria Petrillo, Andrea Rossi, Simone Cialdi, L. Monaco, Paolo Russo, Angelo Taibi, Fiorello Martire, Gianfranco Paternò, Raffaele Giuseppe Agostino, Antonio Sarno, F. Prelz, Daniele Sertore, Illya Drebot, Dario Giannotti, Mauro Gambaccini, Paolo Michelato, Giovanni Mettivier, F. Broggi, Luca Serafini, Riccardo Barberi, Ezio Puppin, P. Cardarelli, Rocco Paparella, Angelo Bosotti, Alberto Bacci, M. Rossetti Conti, Vincenzo Formoso, Mauro Ghedini, Murokh, Alex, Faillace, Luigi, Agostino, Raffaele G., Bacci, Alberto, Barberi, Riccardo, Bosotti, Angelo, Broggi, Francesco, Cardarelli, Paolo, Cialdi, Simone, Drebot, Illya, Formoso, Vincenzo, Gambaccini, Mauro, Ghedini, Mauro, Giannotti, Dario, Giove, Dario, Martire, Fiorello, Mettivier, Giovanni, Michelato, Paolo, Monaco, Laura, Paparella, Rocco, Paternó, Gianfranco, Petrillo, Vittoria, Prelz, Francesco, Puppin, Ezio, Rossetti Conti, Marcello, Rossi, Andrea R., Russo, Paolo, Sarno, Antonio, Taibi, Angelo, and Serafini, Luca

Subjects
Physics, Inverse Compton Scattering, Compact Light Sources, Accelerator, Energy Recovery Linac, High Photon Flux, Hard X-rays, Mono-chromatic X-rays, Radiological Imaging, Energy Recovery Linac, Photon, Inverse Compton Scattering, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Bandwidth (signal processing), Hard X-rays, Inverse, Accelerator, Injector, Linear particle accelerator, High Photon Flux, law.invention, NO, Optics, law, Compact Light Sources, Cathode ray, Mono-chromatic X-rays, Monochromatic color, business, Radiological imaging, Radiological Imaging
Abstract

There is a strong demand for small foot-print high-flux hard X-rays machines in order to enable a large variety of science activities and serve a multidisciplinary user community. For this purpose, two compact Inverse Compton Sources (ICSs) are currently being developed in Italy. The most recent one is the Bright and Compact X-ray Source (BriXS) which has recently been proposed to produce very energetic X-rays (up to 180 keV) and high photon flux (up to 1013 photons/s with expected bandwidth of 1-10%). BriXS will be installed in Milan and it will enable advanced large area radiological imaging applications to be conducted with mono-chromatic X-rays, as well as allowing basic fundamental science of matter and health sciences at both pre- and clinical levels. Based on an energy-recovery linac (ERL) scheme and superconducting technology, BriXS will operate in CW regime with an unprecedented electron beam repetition rate of 100 MHz. The second Italian ICS light source is the Southern Europe Thomson back-scattering source for Applied Research (STAR) which is currently installed at the University of Calabria (UniCal). STAR is a compact machine that has been designed to produce monochromatic and tunable, ps-long, polarized X-ray beams in the range 40-140 keV with a photon flux up to 1010 photons/s and energy bandwidth below 10%. The electron beam injector is based on normal-conducting technology in S-Band with a repetition rate up to 100 Hz.

Published
2019

34. BriXs Ultra High Flux Inverse Compton Source Based on Modified Push-Pull Energy Recovery Linacs

Author

Drebot, Illya, Bacci, Alberto, Bosotti, Angelo, Broggi, Francesco, Canella, Cardarelli, Paolo, Cialdi, Simone, Faillace, Luigi, Galzerano, Gianluca, Gambaccini, Mauro, Giannotti, Dario, Giove, Mettivier, Giovanni, Michelato, Monaco, Laura, Paparella, Rocco, Patern?, Gianfranco, Petrillo, Vittoria, Prelz, Rossetti Conti, Marcello, Rossi, Andrea Renato, Russo, Sarno, Antonio, Suerra, Edoardo, Taibi, Serafini, Luca, Drebot, Illya, Bacci, Alberto, Bosotti, Angelo, Broggi, Francesco, Canella, Francesco, Cardarelli, Paolo, Cialdi, Simone, Faillace, Luigi, Galzerano, Gianluca, Gambaccini, Mauro, Giannotti, Dario, Giove, Dario, Mettivier, Giovanni, Michelato, Paolo, Monaco, Laura, Paparella, Rocco, Paternó, Gianfranco, Petrillo, Vittoria, Prelz, Francesco, Rossetti Conti, Marcello, Rossi, Andrea Renato, Russo, Paolo, Sarno, Antonio, Suerra, Edoardo, Taibi, Angelo, and Serafini, Luca

Subjects
compton x-ray source, Astrophysics::High Energy Astrophysical Phenomena, energy recovery, Socio-culturale, Physics::Optics, brix, 02 engineering and technology, 01 natural sciences, law.invention, Optics, law, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Instrumentation, Physics, Energy recovery, brixs, 010308 nuclear & particles physics, business.industry, Dissipation, AC power, 021001 nanoscience & nanotechnology, Laser, lcsh:QC1-999, Power (physics), compton X-ray source, Cathode ray, lcsh:QC770-798, Physics::Accelerator Physics, 0210 nano-technology, business, lcsh:Physics, Energy (signal processing), Beam (structure)
Abstract

We present a conceptual design for a compact X-ray Source BriXS (Bright and compact X-ray Source). BriXS, the first stage of the Marix project, is an Inverse Compton Source (ICS) of X-ray based on superconducting cavities technology for the electron beam with energy recirculation and on a laser system in Fabry-P&eacute, rot cavity at a repetition rate of 100 MHz, producing 20&ndash, 180 keV monochromatic X-Rays devoted mainly to medical applications. An energy recovery scheme based on a modified folded push-pull CW-SC twin Energy Recovery Linac (ERL) ensemble allows us to sustain an MW-class beam power with almost one hundred kW active power dissipation/consumption.

Published
2019
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35. Imaging a positronium cloud in a 1 Tesla

Author

Stefano Aghion, P. Hackstock, G. Nebbia, Alban Kellerbauer, A. Hinterberger, Sebastian Gerber, Rafael Ferragut, Ruggero Caravita, Daniel Comparat, Marco Prevedelli, M. Antonello, D. Krasnický, A. Demetrio, Sebastiano Mariazzi, F. Guatieri, A. M. Belov, I. C. Tietje, C. Evans, Markus K. Oberthaler, Roberto S. Brusa, B. Rienaecker, L. Smestad, F. Sorrentino, Giovanni Consolati, Chloé Malbrunot, M. Vujanovic, Germano Bonomi, Johann Marton, S. Haider, J. Robert, M. Fanì, Marco Giammarchi, F. Prelz, Heidi Sandaker, Giovanni Cerchiari, Angela Gligorova, Luca Penasa, P. Lebrun, Patrick Nedelec, Lea Di Noto, Johann Zmeskal, Davide Pagano, P. Yzombard, P. Lansonneur, A. Camper, C. Zimmer, Alberto Rotondi, G. Testera, Adriano Fontana, Fabrizio Castelli, Michael Doser, H. Holmestad, O. Khalidova, Claude Amsler, Vojtech Petracek, S.R. Müller, Romualdo Santoro, Nicola Zurlo, Viktor Matveev, J. Fesel, Ole Røhne, Massimo Caccia, Eberhard Widmann, V. Lagomarsino, Laboratoire Aimé Cotton (LAC), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Camper, Antoine, Aghion, Stefano, Amsler, Claude, Antonello, Massimiliano, Belov, Alexander, Bonomi, Germano, Brusa, Roberto, Caccia, Massimo, Caravita, Ruggero, Castelli, Fabrizio, Cerchiari, Giovanni, Comparat, Daniel, Consolati, Giovanni, Demetrio, Andrea, Di Noto, Lea, Doser, Michael, Evans, Craig, Fanì, Mattia, Ferragut, Rafael, Fesel, Julian, Fontana, Andrea, Gerber, Sebastian, Giammarchi, Marco, Gligorova, Angela, Guatieri, Francesco, Hackstock, Philip, Haider, Stefan, Hinterberger, Alexander, Holmestad, Helga, Kellerbauer, Alban, Khalidova, Olga, Krasnický, Daniel, Lagomarsino, Vittorio, Lansonneur, Pierre, Lebrun, Patrice, Malbrunot, Chloé, Mariazzi, Sebastiano, Marton, Johann, Matveev, Viktor, Müller, Simon, Nebbia, Giancarlo, Nedelec, Patrick, Oberthaler, Marku, Pagano, Davide, Penasa, Luca, Petracek, Vojtech, Prelz, Francesco, Prevedelli, Marco, Rienaecker, Benjamin, Robert, Jacque, Røhne, Ole, Rotondi, Alberto, Sandaker, Heidi, Santoro, Romualdo, Smestad, Lillian, Sorrentino, Fiodor, Testera, Gemma, Tietje, Ingmari, Vujanovic, Milena, Widmann, Eberhard, Yzombard, Pauline, Zimmer, Christian, Zmeskal, Johann, Zurlo, Nicola, École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
QC1-999, measurement methods, positronium, Cloud computing, Photoionization, talk: Paris 2018/09/05, 7. Clean energy, 01 natural sciences, 010305 fluids & plasmas, Positronium, law.invention, Nuclear physics, Positron, law, 0103 physical sciences, antimatter, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics::Atomic and Molecular Clusters, cloud, Physics::Atomic Physics, 010306 general physics, Spectroscopy, Antihydrogen, Physics, business.industry, background, antihydrogen: production, imaging, Laser, charge exchange, laser, Antimatter, positronium, gravity, positron, business, Particle Physics - Experiment, experimental results
Abstract

International audience; We report on recent developments in positronium work in the frame of antihydrogen production through charge exchange in the AEgIS collaboration [1]. In particular, we present a new technique based on spatially imaging a cloud of positronium by collecting the positrons emitted by photoionization. This background free diagnostic proves to be highly efficient and opens up new opportunities for spectroscopy on antimatter, control and laser manipulation of positronium clouds as well as Doppler velocimetry.

Published
2019
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36. Compression of a mixed antiproton and electron non-neutral plasma to high densities

Author

E. Widmann, Rafael Ferragut, Marco Giammarchi, M. Doser, A. Gligorova, J. Marton, S. Haider, Z. Mazzotta, P. Lansonneur, A. Hinterberger, Nicola Pacifico, Giovanni Consolati, Ole Røhne, A. Fontana, Markus K. Oberthaler, B. Rienaecker, O. Khalidova, P. Lebrun, L. Smestad, J. Fesel, V. Petracek, R. S. Brusa, D. Krasnický, P. Nedelec, J. Robert, Ruggero Caravita, Heidi Sandaker, Johann Zmeskal, H. Holmestad, D. Pagano, V. Lagomarsino, Claude Amsler, C. Malbrunot, S.R. Müller, N. Zurlo, Lea Di Noto, P. Yzombard, S. Aghion, C. Zimmer, Romualdo Santoro, S. Mariazzi, G. Testera, M. Fanì, Fabrizio Castelli, Marco Prevedelli, M. Antonello, G. Nebbia, Daniel Comparat, I. C. Tietje, F. Sorrentino, F. Prelz, Luca Penasa, A. Kellerbauer, Sebastian Gerber, V. N. Matveev, F. Guatieri, Giovanni Cerchiari, A. Rotondi, A. Demetrio, C. Evans, G. Bonomi, Massimo Caccia, Laboratoire Aimé Cotton (LAC), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-École normale supérieure - Cachan (ENS Cachan), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Aghion, Stefano, Amsler, Claude, Bonomi, Germano, Brusa, Roberto S., Caccia, Massimo, Caravita, Ruggero, Castelli, Fabrizio, Cerchiari, Giovanni, Comparat, Daniel, Consolati, Giovanni, Demetrio, Andrea, Di Noto, Lea, Doser, Michael, Evans, Craig, Fanì, Mattia, Ferragut, Rafael, Fesel, Julian, Fontana, Andrea, Gerber, Sebastian, Giammarchi, Marco, Gligorova, Angela, Guatieri, Francesco, Haider, Stefan, Hinterberger, Alexander, Holmestad, Helga, Kellerbauer, Alban, Khalidova, Olga, Krasnický, Daniel, Lagomarsino, Vittorio, Lansonneur, Pierre, Lebrun, Patrice, Malbrunot, Chloé, Mariazzi, Sebastiano, Marton, Johann, Matveev, Victor, Mazzotta, Zeudi, Müller, Simon R., Nebbia, Giancarlo, Nedelec, Patrick, Oberthaler, Marku, Pacifico, Nicola, Pagano, Davide, Penasa, Luca, Petracek, Vojtech, Prelz, Francesco, Prevedelli, Marco, Rienaecker, Benjamin, Robert, Jacque, Røhne, Ole M., Rotondi, Alberto, Sandaker, Heidi, Santoro, Romualdo, Smestad, Lillian, Sorrentino, Fiodor, Testera, Gemma, Tietje, Ingmari C., Widmann, Eberhard, Yzombard, Pauline, Zimmer, Christian, Zmeskal, Johann, Zurlo, Nicola, Antonello, Massimiliano, École normale supérieure - Cachan (ENS Cachan)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Electron density, Antiparticle, experimental methods, CERN Lab, Penning trap, Context (language use), Electron, gravity, antimatter, trapped particles, 01 natural sciences, electron: density, 010305 fluids & plasmas, antiproton trapping, Penning–Malmberg trap, Nuclear physics, anti-p: density, density: spatial distribution, Physics in General, Atomic and Molecular Physics, 0103 physical sciences, Physics::Atomic Physics, 010306 general physics, Antihydrogen, Nuclear Experiment, Physics, Plasma Physics, antihydrogen: production, electron: cloud, imaging, Plasma, electron: plasma, Atomic and Molecular Physics, and Optics, anti-p: plasma, [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph], Antiproton, efficiency, Antimatter, Physics::Accelerator Physics, High Energy Physics::Experiment, and Optics
Abstract

Abstract We describe a multi-step “rotating wall” compression of a mixed cold antiproton–electron non-neutral plasma in a 4.46 T Penning–Malmberg trap developed in the context of the AEḡIS experiment at CERN. Such traps are routinely used for the preparation of cold antiprotons suitable for antihydrogen production. A tenfold antiproton radius compression has been achieved, with a minimum antiproton radius of only 0.17 mm. We describe the experimental conditions necessary to perform such a compression: minimizing the tails of the electron density distribution is paramount to ensure that the antiproton density distribution follows that of the electrons. Such electron density tails are remnants of rotating wall compression and in many cases can remain unnoticed. We observe that the compression dynamics for a pure electron plasma behaves the same way as that of a mixed antiproton and electron plasma. Thanks to this optimized compression method and the high single shot antiproton catching efficiency, we observe for the first time cold and dense non-neutral antiproton plasmas with particle densities n ≥ 1013 m−3, which pave the way for an efficient pulsed antihydrogen production in AEḡIS. Graphical abstract

Published
2018
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