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1. Current achievements of the DELPHI ring imaging Cherenkov detector

Author

C. Aubret, G. Polok, E. C. Katsoufis, D. Poutot, J. M. Brunet, E. Christophel, Jerzy Michalowski, G. E. Theodosiou, L. Traspedini, H. Rahmani, G. W. Van Apeldoorn, Mario Sannino, D. Fassouliotis, L. K. Resvanis, J. P. Engel, S. Maltezos, Christine Kourkoumelis, E. Dahl-Jensen, M. Chevry, G. Damgaard, G. Mourgue, Th. D. Papadopoulou, M. Davenport, G. Tripodi, E. Albrecht, S Jaaskelainen, O. Ullaland, A. Lopez Agüera, P. Juillot, V. Gracco, S. Ilie, Paul Baillon, Pavlos Ioannou, Kathy Huet, J. Dolbeau, P. Cavalli, B. Dalmagne, F. Delbecque, J. Thadome, Tord Ekelof, A. Fontenille, Daniel Bloch, Borge Svane Nielsen, E. Zevgolatakos, D. Z. Toet, P. Stassi, Wolfgang Adam, S. Haider, D. Gillespie, G. Sajot, Peter Kluit, M. Battaglia, Jorge-Armando Benitez Garcia, E. Schyns, G. Lecoeur, Demetrios Loukas, S. Katsanevas, M. Reale, P. Carrie, Guillaume Cerutti, Manolis Dris, T. A. Filippas, Evangelos Gazis, C. Joram, Olga Botner, F. Hahn, F. Montano, E. Karvelas, M. Dracos, N. Dimitriou, B. Koene, M. J. Tobar, D. Allen, N. J. Kjaer, S. Squarcia, D. Fraissard, Claire Bourdarios, G. Tristram, Andromachi Tsirou, L.-E. Lindqvist, Andre Augustinus, A. Buys, Allan Hallgren, H. Furstenau, G. Lenzen, R. Strub, E. Fokitis, W. Hao, R. Nicolaidou, M. L. Andrieux, J. Medbo, F. Fontanelli, A. Markou, A. Petrolini, L. Guglielmi, LEP (IHEF, IoP, FNWI), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Cherenkov detector, Detector, Solid angle, Signal, Ring-imaging Cherenkov detector, law.invention, Nuclear physics, law, Carbon–fluorine bond, Calibration, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Angular resolution, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation
Abstract

The DELPHI experiment has already collected 2.5 million Z 0 decays with the ring imaging Cherenkov detector (RICH) operational. This detector, covering most of the solid angle, is designed to perform π K separation from 0.8 to 20 GeV/ c and K/p separation from 0.8 to 35 GeV/ c . After a brief detector description we discuss the actual operating conditions, the data monitoring and the signal treatment. The collected data from Z 0 decays and the detector response to signals from the calibration system are used to evaluate the performance of the RICH system.

Published
1996

2. The DELPHI very forward tracker for LEP200

Author

J. M. Heuser, D. Sauvage, Chiara Mariotti, M. Cohen-Solal, Y. Dufour, Leonid Kurchaninov, V Rykalin, G. Vegni, A. Andreazza, Heinz Pernegger, J. Waisbard, R. Janik, J.C. Clemens, O Bystrom, Dietrich Liko, J. Masik, R. Jeraj, Vaclav Vrba, M. Raymond, Rupert Leitner, C. Bosio, Tord Ekelof, P. Chochula, Chiara Meroni, Klaus Mönig, L. Guglielmi, E. Margan, Susanne Kersten, C. Aubret, D. Rakoczy, Vladimir Cindro, K. W. Glitza, Allan Hallgren, S. Maček, Manfred Krammer, J.J. Jaeger, F. Ledroit, E Hanuska, M. Pernicka, M. Baubillier, N. G. Redaelli, P Vojtyla, I. Stavitski, Clara Troncon, T. Mouthuy, Massimo Caccia, P. Kind, L.-E. Lindqvist, L Lopez, K. H. Becks, J. M. Brunet, P. Delpierre, M. Pindo, G. Tristram, Olga Botner, B. Uberschar, P. Sicho, Jan Ridky, F. Rossel, G. Leder, Andreas Alexander Maier, M. Regler, P. Gerlach, C. Boutonnet, Lydia Roos, D. Žontar, J. Drees, Milos Lokajicek, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Silicon, 010308 nuclear & particles physics, business.industry, Detector, chemistry.chemical_element, 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Optics, chemistry, Test beam, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], business, Instrumentation, computer, Delphi, computer.programming_language
Abstract

The design of a new silicon tracker detector for the forward region in the DELPHI experiment is presented. It consists of two layers of macropixel and two layers of ministrip detectors in both the forward directions. The motivations and the requirements for this detector will be shown together with test beam results.

Published
1995

3. Performance of the ring imaging Cherenkov detector of DELPHI

Author

G. W. Van Apeldoorn, D. Poutot, Y. Arnoud, E. Dahl-Jensen, A. Buys, D. Fraissard, J. P. Engel, L. Guglielmi, G. Polok, Allan Hallgren, L. Traspedini, L. K. Resvanis, Evangelos Gazis, P. Juillot, Th. D. Papadopoulou, B. Koene, G. Damgaard, M. Dracos, M. Chevry, A. Lopez Agüera, J. M. Brunet, V. Gracco, Pavlos Ioannou, G. Lecoeur, S. Ilie, F. Delbecque, Mario Sannino, F. Hahn, W. Hao, J. Thadome, D. Allen, G. Mourgue, Guillaume Cerutti, Olga Botner, H. Rahmani, M. Davenport, Kathy Huet, D. Z. Toet, G. Tripodi, D. Fassouliotis, Claire Bourdarios, G. E. Theodosiou, Borge Svane Nielsen, J. Dolbeau, N. J. Kjaer, O. Ullaland, Jorge-Armando Benitez Garcia, Manolis Dris, E. Albrecht, G. Tristram, Peter Kluit, Daniel Bloch, E. C. Katsoufis, Wolfgang Adam, Tord Ekelof, Andromachi Tsirou, Andre Augustinus, Paul Baillon, S. Katsanevas, T. A. Filippas, S. Haider, Jerzy Michalowski, R. Nicolaidou, P. Stassi, F. Fontanelli, E. Christophel, S. Maltezos, A. Fontenille, M. J. Tobar, P. Cavalli, B. Dalmagne, G. Lenzen, R. Strub, F. Montano, E. Karvelas, N. Dimitriou, L.-E. Lindqvist, S. Squarcia, D. Gillespie, E. Schyns, M. Reale, E. Fokitis, Demetrios Loukas, S Jaaskelainen, C. Kourkoumelis, H. Furstenau, E. Zevgolatakos, M. Battaglia, P. Carrie, M. L. Andrieux, J. Medbo, A. Markou, A. Petrolini, C. Aubret, G. Sajot, C. Joram, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), and Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, Physics::Instrumentation and Detectors, Cherenkov detector, Detector, Ring-imaging Cherenkov detector, Particle detector, law.invention, Nuclear physics, law, Large Electron–Positron Collider, Hermetic detector, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment, Instrumentation, Cherenkov radiation
Abstract

The general purpose particle detector DELPHI at the Large Electron Positron collider at CERN was built to give the complete information of each event. DELPHI uses ring imaging Cherenkov counters to provide hadron identification in most of the momentum range below 45 GeV/ c and over almost the full solid angle. Charged particles traversing gaseous and liquid fluorocarbon radiators create photons used for Cherenkov angle reconstruction. Some of the design features of the detector will be presented, with emphasis on the experience which was gained in the operation of these large systems. The hadron identification power of the ring imaging Cherenkov detector closely meets the main design values. Data processing and performance of the detector will be discussed using dimuon events collected during 1994. Pion rejection factors for kaon tagging will be shown.

Published
1995

4. Operational experience with the 4$\pi$ ring imaging Cherenkov detector of DELPHI

Author

Manolis Dris, Tord Ekelof, S. Ilie, F. Fulda, Paul Baillon, R. Nicolaidou, J. P. Engel, E. Christophel, E. C. Katsoufis, E. Zevgolatakos, P. Cavalli, B. Dalmagne, G. Damgaard, G. W. Van Apeldoorn, L. Guglielmi, Pierre Juillot, B. Koene, C. Aubret, V. Gracco, M. Battaglia, Pavlos Ioannou, G Gerutti, Y. Arnoud, P. Stassi, J. Thadome, Wolfgang Adam, Evangelos Gazis, J. Dolbeau, W. Hao, R. Strub, N. J. Kjaer, Christine Kourkoumelis, E. Dahl-Jensen, M. Chevry, L. Traspedini, L. K. Resvanis, S. Haider, E. Schyns, M. L. Andrieux, G. Lecoeur, D. Poutot, F. Hahn, G. Tristram, G. Mourgue, G. Tripodi, Kathy Huet, Th. D. Papadopoulou, A. Lopez Agüera, Borge Svane Nielsen, A. Buys, J. M. Brunet, E. Fokitis, Peter Kluit, P. F. Honore, G. Polok, Marcos Dracos, Mario Sannino, J. Medbo, J.M. Ostler, E. Albrecht, S. Katsanevas, Daniel Bloch, Allan Hallgren, T. A. Filippas, Jerzy Michalowski, Demetrios Loukas, G. Sajot, D. Fraissard, S. Maltezos, P. Carecchio, A. Maltezos, Olga Botner, P. Carrie, M. Davenport, A. Budziak, S. Squarcia, L. O. Eek, H. Rahmani, D. Fassouliotis, F. Fontanelli, O. Ullaland, E. Saragas, Claire Bourdarios, D. Z. Toet, H. Furstenau, M. Zavrtanik, Jorge-Armando Benitez Garcia, A.S. de la Vega, L.-E. Lindqvist, F. Montano, E. Karvelas, N. Dimitriou, A. Fontenille, D. Allen, G. Lenzen, Andromachi Tsirou, Andre Augustinus, D. Gillespie, M. Reale, A. Markou, A. Petrolini, T. Henkes, M. Berggren, G. E. Theodosiou, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF (institution))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Delphi (IHEF, IoP, FNWI)

Subjects
Physics, Nuclear and High Energy Physics, Photon, Physics::Instrumentation and Detectors, Cherenkov detector, Detector, Solid angle, Charged particle, Ring-imaging Cherenkov detector, law.invention, Nuclear physics, law, Hermetic detector, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation, Cherenkov radiation
Abstract

The ring imaging Cherenkov detector in the DELPHI Experiment at LEP allows hadron identification over a momentum range up to about 40 Gev/c over a near to 4π solid angle. Photons emitted by charged particles traversing gas and liquid radiators which are filled with UV-transparent perfluorocarbons, are used for Cherenkov angle reconstruction. Stable operation ensures that the detector is an efficient and powerful instrument. Monitoring of the detector parameters is of utmost importance to achieve good data quality and adequate data processing. The hadron identifying power of the ring imaging Cherenkov detector closely meets the main design values. Computerized control and monitoring features of the different subsystems will be presented. The interplay between detector parameters and the particle separating capacity of the detector will be discussed.

Published
1994

5. THE RING IMAGING CHERENKOV DETECTOR OF DELPHI

Author

W. Adam, E.G. Anassontzis, E. Albrecht, I. Ambec, G. van Apeldoorn, Y. Arnoud, C. Aubret, A. Augustinus, P. Baillon, C. Barnoux, M. Battaglia, M. Berggren, D. Bloch, O. Botner, C. Bourdarios, N. Brümmer, J.M. Brunet, A.P. Budziak, A. Buys, L.P. Caloba, P. Carecchio, P. Carrié, P. Cavalli, R. Cereseto, G. Cerutti, M. Chevry, E. Christophel, E. Dahl-Jensen, B. D'Almagne, Ph. Dam, P. van Dam, G. Damgaard, M. Davenport, J. Dolbeau, M. Dracos, M. Dris, N. de Koning, A.S. de la Vega, N. Dimitriou, L-O. Eek, T. Ekelöf, J. Erikson, J.P. Engel, G. Evers, D. Fassouliotis, T.A. Filippas, A. Florek, B. Florek, E. Fokitis, F. Fontanelli, A. Fontenille, D. Fraissard, K. Galuszka, J. Garcia, E. Gaumann, E. Gazis, B. Goret, V. Gracco, L. Guglielmi, F. Hahn, S. Haider, A. Hallgren, W. Hao, T. Henkes, P.F. Honoré, K. Huet, P. Ioannou, H. Johansson, P. Juillot, G. Kalkanis, E. Karvelas, S. Katsanevas, E. Katsoufis, P. Kindblom, N. Kjaer, W. Klempt, P.M. Kluit, B. Koene, P. Kokkinias, C. Kourkoumelis, C. Lambropoulos, D. Langerveld, G. Lecoeur, G. Lenzen, L-E. Lindqvist, A. López Agúera, D. Loukas, A. Maltezos, S. Maltezos, A. Markou, L. Mattsson, J. Medbo, J. Michalowski, F. Montano, G. Mourgue, B.S. Nielsen, R. Nicolaidou, J.M. Noppe, J.M. Ostler, K. Pakonski, Th.D. Papadopoulou, D. Poutot, A. Petrolini, G. Polok, L.K. Resvanis, E. Rosso, G. Sajot, M. Schaeffer, M. Sannino, E. Saragas, E. Schyns, S. Squarcia, G. Stavropoulos, M. Stodulski, Z. Stopa, R. Strub, J. Thadome, G.E. Theodosiou, D.Z. Toet, L. Traspedini, G. Tristram, A. Tsirou, M. Turala, S. Tzamarias, O. Ullaland, P. Vergezac, G. Voulgaris, A. Wärm, J. Werner, M. Zavrtanik, and E. Zevgolatakos

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, Photon, Physics::Instrumentation and Detectors, business.industry, Cherenkov detector, Detector, Solid angle, Particle identification, Ring-imaging Cherenkov detector, law.invention, Nuclear physics, Optics, law, High Energy Physics::Experiment, business, Instrumentation, Storage ring
Abstract

The ring imaging Cherenkov detector system in the DELPHI experiment at the Large Electron-Positron storage ring at CERN, is designed to do particle identification over most of the solid angle in the momentum range from ∼2 GeV c to ∼40 sol GeV c . Two radiator media are used to cover the momentum range; (i) a 1 cm layer of liquid C6F14, and (ii) a volume filled with gaseous C5F12 or C4F10. Photosensitive time projection chambers record the conversion points of the ultraviolet photons produced in both radiator systems. The total active area is ∼30 m2 in the barrel region and ∼8 m2 in the two endcaps. The design of the detector systems is described in this paper. We will also report performance figures and compare them to simulation studies.

Published
1994

6. RECENT RESULTS OF THE FORWARD RING IMAGING CHERENKOV DETECTOR OF THE DELPHI EXPERIMENT AT LEP

Author

Jorge-Armando Benitez Garcia, G. Damgaard, V. Gracco, A. Fontenille, G. Tripodi, A.S. de la Vega, L.-E. Lindqvist, Guillaume Cerutti, A. Petrolini, P. Cavalli, T. Henkes, A. Lopez Aguera, G. Sajot, J. Thadome, Mario Sannino, F. Montano, P. Carecchio, A. Maltezos, A. Budziak, E. Schyns, E. Karvelas, Wolfgang Adam, B. Koene, N. Dimitriou, J.M. Ostler, E. Albrecht, Tord Ekelof, W. Hao, Allan Hallgren, L. Traspedini, Andre Augustinus, Demetrios Loukas, Olga Botner, G. Polok, G. Lenzen, G. E. Theodosiou, O. Ullaland, A. Markou, E. Dahl-Jensen, L. O. Eek, F. Fontanelli, S. Squarcia, A. Florek, M. Zavrtanik, Borge Svane Nielsen, B. Florek, Jerzy Michalowski, and J. Medbo

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Computer Science::Software Engineering, Particle accelerator, Particle identification, Particle detector, Ring-imaging Cherenkov detector, law.invention, Nuclear physics, Nuclear Energy and Engineering, law, Measuring instrument, High Energy Physics::Experiment, Electrical and Electronic Engineering, computer, Delphi, computer.programming_language
Abstract

The Forward Ring Imaging Cherenkov detector covers both end-cap regions of the DELPHI experiment at LEP in the polar angle 15/spl deg/ >

Published
1994

7. The forward ring imaging cherenkov detector of DELPHI

Author

W. Dulinski, K. Pakonski, F. Montano, Andre Augustinus, E. Karvelas, P. Kindblom, N. Dimitriou, A.P. Budziak, B. Lund-Jensen, P. Carecchio, A. Korporaal, E. Zevgolatakos, D. Isenhower, S. Squarcia, Tord Ekelof, Borge Svane Nielsen, T. Henkes, O. Ullaland, Håkan T Johansson, C. Perdikis, E. Saragas, E. Schyns, E. Dahl-Jensen, Mario Sannino, L. O. Eek, G. Lenzen, Wolfgang Adam, Jorge-Armando Benitez Garcia, A. Fontanelle, C. Barnoux, F. Fontanelli, B. Koene, A. Robohm, R. Cereseto, G. Polok, A. Wärm, A. Florek, G. Damgaard, P. Cavalli, Allan Hallgren, A.S. de la Vega, L.-E. Lindqvist, N. de Koning, L. Mattsson, G. E. Theodosiou, J.M. Ostler, E. Albrecht, K. Galuszka, V. Gracco, J. Erikson, L. Ceelie, J. Werner, Marek Stodulski, G. Sajot, J. Thadome, M. Zavrtanik, A. Maltezos, B. Boštjančič, J. Medbo, P. Lorenz, P. Dam, Panos Kostarakis, Demetrios Loukas, Z. Stopa, W. Hao, Luiz Caloba, I. Ambec, L. Traspedini, Guillaume Cerutti, Olga Botner, A. Markou, B. Florek, Jerzy Michalowski, Georgios Stavropoulos, M. Turala, S. Xyroutsikos, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches Subatomiques (IReS), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Cancéropôle du Grand Est-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics, Nuclear and High Energy Physics, Photon, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, Cherenkov detector, Detector, Photodetector, 01 natural sciences, Particle detector, Particle identification, Ring-imaging Cherenkov detector, law.invention, Nuclear physics, Optics, law, 0103 physical sciences, High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, 010306 general physics, business, Instrumentation, Cherenkov radiation
Abstract

The Forward Ring Imaging Cherenkov detector of the DELPHI experiment at LEP provides hadron identification at polar angles15° < θ < 35° and 145° < θ < 165°. Two radiator media, a layer of liquid C6F14 and a volume of gaseous C4F10, in combination provide coverage of momenta up to 40 GeV/c. A single array of photosensitive Time Projection Chambers registers the impact points of ultraviolet photons from both radiators. The design of the detector and of its readout system is described. First results obtained with a partly installed detector are reported.

Published
1994
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8. Performance of the forward RICH detector system at DELPHI

Author

T. Henkes, G. Lenzen, P. Cavalli, O. Ullaland, A. Markou, B. Koene, V. Gracco, L. Traspedini, Jorge-Armando Benitez Garcia, E. Schyns, Z. Stopa, J. Erikson, J. Medbo, R. Cereseto, M. Turala, Mario Sannino, A.S. de la Vega, L.-E. Lindqvist, P. Carechio, E. Albrecht, Georgios Stavropoulos, L. O. Eek, Guillaume Cerutti, S. Xyroutsikos, A. Wärm, A.P. Budziak, K. Pakonski, F. Fontanelli, H. Johansson, Jürgen H. Werner, Borge Svane Nielsen, M. Zavrtanik, F. Montano, Z. Thome, P. Lorenz, Tord Ekelof, E. Karvelas, W. Hao, N. Dimitriou, Bengt Lund-Jensen, B. Florek, Jerzy Michalowski, I. Ambec, A. Robohm, Marek Stodulski, G. Sajot, N. de Koning, W. Dulinski, A. Squarcia, O. Botner, A. Maltezos, C. Barnoux, L. Ceelie, Allan Hallgren, J. Thadome, C. Perdikes, Andre Augustinus, A. Korporaal, Demetrios Loukas, B. Boštjančič, Panos Kostarakis, A. Florek, G. Damgaard, E. Dahl-Jensen, K. Galuszka, Piet Van Dam, P. Kindblom, L. Mattsson, A. Fontenille, E. Zevgolatakos, D. Isenhower, Wolfgang Adam, E. Saragas, G. E. Theodosiou, G. Polok, bibliotheque, LPSC, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)

Subjects
Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, 01 natural sciences, Particle identification, Particle detector, law.invention, Optics, law, 0103 physical sciences, Electrical and Electronic Engineering, 010306 general physics, Ultraviolet radiation, Cherenkov radiation, computer.programming_language, Physics, 010308 nuclear & particles physics, business.industry, Detector, Particle accelerator, Nuclear Energy and Engineering, Measuring instrument, Optoelectronics, High Energy Physics::Experiment, business, computer, Delphi
Abstract

One quarter of the Forward Ring Imaging Cherenkov (Forward RICH) detector has been installed and operated in the DELPHI experiment. The detector covers the forward-backward regions (15 degrees >

Published
1993

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