20 results on '"Loreti, Stefano"'
Search Results
2. Radiation hardness test of un-doped CsI crystals and Silicon Photomultipliers for the Mu2e calorimeter
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Baccaro, Stefania, Cemmi, Alessia, Cordelli, Marco, Diociaiuti, Eleonora, Donghia, Raffaella, Giovannella, Simona, Loreti, Stefano, Miscetti, Stefano, Pillon, Mario, and Sarra, Ivano
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Physics - Instrumentation and Detectors ,High Energy Physics - Experiment - Abstract
The Mu2e calorimeter is composed by 1400 un-doped CsI crystals coupled to large area UV extended Silicon Photomultipliers arranged in two annular disks. This calorimeter has to provide precise information on energy, timing and position. It should also be fast enough to handle the high rate background and it must operate and survive in a high radiation environment. Simulation studies estimated that, in the hottest regions, each crystal will absorb a dose of 300 Gy and will be exposed to a neutron fluency of 6 x 10^{11} n/cm^2 in 3 years of running. Test of un-doped CsI crystals irradiated up to 900 Gy and to a neutron fluency up to 9 x 10^{11} n/cm^2 have been performed at CALLIOPE and FNG ENEA facilities in Italy. We present our study on the variation of light yield (LY) and longitudinal response uniformity (LRU) of these crystals after irradiation. The ionization dose does not modify LRU while a 20% reduction in LY is observed at 900 Gy. Similarly, the neutron flux causes an acceptable LY deterioration (<15%). A neutron irradiation test on different types of SIPMs (two different array models from Hamamatsu and one from FBK) have also been carried out by measuring the variation of the leakage current and the charge response to an ultraviolet led. We concluded that, in the experiment, we will need to cool down the SIPMs to 0 C reduce the leakage current to an acceptable level., Comment: Presented at CALOR 2016, 15-20 May. Submitted to Journal of Physics: Conference Series (JPCS)
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- 2016
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3. EUROFUSION CONTRIBUTIONS TO ITER NUCLEAR OPERATION
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Litaudon, Xavier L, primary, Fantz, Ursel, additional, Villari, Rosaria, additional, Toigo, Vanni, additional, Aumeunier, Marie-Helene, additional, Autran, Jean-Luc, additional, Batistoni, Paola, additional, Belonohy, Eva, additional, Bradnam, Steven, additional, CECCHETTO, Matteo, additional, Colangeli, Andrea, additional, DACQUAIT, Frederic, additional, Dal Bello, Samuele, additional, DENTAN, Martin, additional, De Pietri, Marco, additional, Eriksson, Jacob, additional, Fabbri, Marco, additional, Falchetto, Gloria L, additional, Figini, Lorenzo, additional, Figueiredo, Joao, additional, Flammini, Davide, additional, Fonnesu, Nicola, additional, Frassinetti, Lorenzo, additional, Galdon-Quiroga, Joaquin, additional, Garcia Alia, Ruben, additional, Garcia-Munoz, Manuel, additional, Ghani, Zamir, additional, Gonzalez Martin, Javier, additional, Grelier, Erwan, additional, DIGRAZIA, Luigi Manuel, additional, Grove, Bob, additional, GROVE, Callum, additional, GUSAROV, Andrei, additional, Heinemann, Bernd, additional, Hjalmarsson, Anders, additional, Hyvarinen, otsojuhani, additional, Ioannou-Sougleridis, Vassilios, additional, JONES, Luke, additional, Kim, Hyun-Tae, additional, Klosowski, Marius, additional, Kocan, Martin, additional, Kos, Bor, additional, Kos, Leon, additional, Kotnik, Domen, additional, Laszynska, Ewa, additional, Leichtle, Dieter, additional, Lengar, Igor, additional, Leon-Gutierrez, Edgard, additional, López Revelles, Antonio Jesús, additional, Loreti, Stefano, additional, LOUGHLIN, Mike J, additional, Marcuzzi, Diego, additional, McClements, Kenneth G, additional, Mariano, Giovanni, additional, Mattei, Massimiliano, additional, Mergia, K, additional, Mietelski, Jerzy, additional, Mitteau, Raphael, additional, Moindjie, soilihi, additional, Munteanu, Daniela, additional, Naish, Richard, additional, NOCE, simone, additional, Packer, Lee, additional, Pamela, Stanislas, additional, Pampin, Raul, additional, Pau, Alessandro, additional, Peacock, Alan, additional, Peluso, Emmanuele, additional, Peneliau, Yannick, additional, Peric, julijan, additional, Radulovic, Vladimir, additional, Ricci, Daria, additional, Rimini, Fernanda, additional, Sauvan, Patrick, additional, Savva, Marilia, additional, Serianni, Gianluigi, additional, SHAND, Chantal, additional, Snicker, Antti, additional, Snoj, Luka, additional, Stamatelatos, Ion, additional, Štancar, Žiga, additional, Vasilopoulou, Theodora, additional, Vila, rafael, additional, Waterhouse, John, additional, Wimmer, Christian, additional, Wünderlich, Dirk, additional, Zohar, andrej, additional, Terranova, Nicholas, additional, and Sanchis, Lucia, additional
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- 2024
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4. Modelling of the neutron production in a mixed beam DT neutron generator
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Čufar, Aljaž, Batistoni, Paola, Ghani, Zamir, Giacomelli, Luca, Lengar, Igor, Loreti, Stefano, Milocco, Alberto, Popovichev, Sergey, Pillon, Mario, Rigamonti, Davide, Rebai, Marica, Tardocchi, Marco, and Snoj, Luka
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- 2018
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5. Characterization of a diamond detector to be used as neutron yield monitor during the in-vessel calibration of JET neutron detectors in preparation of the DT experiment
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Pillon, Mario, Angelone, Maurizio, Batistoni, Paola, Loreti, Stefano, and Milocco, Alberto
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- 2016
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6. Long Term Neutron Activation in JET DD Operation
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Žohar Andrej, Lengar Igor, Batistoni Paola, Conroy Sean, Čufar Aljaž, Kierepko Renata, Kos Bor, Loreti Stefano, Mietelski Jerzy W., Nobs Chantal R., Packer Lee W., Pillon Mario, Radulović Vladimir, Savva Marilia I., Snoj Luka, Stamatelatos Ion E., Štancar Žiga, Vasilopoulou Theodora, and Wójcik-Gargula Anna
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jet ,long term neutron irradiation ,mcnp ,Physics ,QC1-999 - Abstract
In the 2019 C38 Deuterium-Deuterium campaign at JET several different ITER-relevant materials and dosimetry foils were irradiated in a specially designed long-term irradiation station located inside the vacuum vessel with the purpose of testing the activation of ITER materials by fusion neutrons. The samples were exposed to a neutron fluence of 1.9E14 n/cm2 during JET discharges performed in the experimental campaign over a period of 5 months. Gamma ray spectroscopy measurements were performed on irradiated samples to determine the activation of different long-lived isotopes in the samples. Monte Carlo computational analysis was performed to support the experiment by using the measured neutron yield and irradiation time. In this paper we focus on the computational analysis of the dosimetry foils that are used in order to measure the local neutron energy spectrum and flux. The foils were chosen to cover different neutron energies: thus Yttrium and some of the Nickel and Cobalt reactions were used to determine the Deuterium-Tritium fusion fraction, while Scandium and Iron and some of the Nickel and Cobalt reactions were used for comparison of the computed activity with the experimental measurements. The obtained C/E values show a reasonably good agreement between calculated and measured activity, thus validating the computational methodology and providing the basis for the analysis of the ITER-relevant materials and future experiments performed at JET in the Deuterium-Tritium campaign.
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- 2021
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7. Detailed reproduction of the neutron emission from the compact DT neutron generator used as an in-situ 14 MeV calibration neutron source at JET
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Čufar Aljaž, Batistoni Paola, Ghani Zamir, Giacomelli Luca, Lengar Igor, Loreti Stefano, Milocco Alberto, Popovichev Sergey, Pillon Mario, Rigamonti Davide, Rebai Marica, Tardocchi Marco, and Snoj Luka
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dt neutron generator ,neutron source characterization ,neutron detectors ,calibration ,Physics ,QC1-999 - Abstract
A compact DT neutron generator (NG) based on the mixed-beam operation was used as a calibration neutron source in the latest in-situ calibration of neutron detectors at the Joint European Torus (JET). In order to meet the requirement for the total uncertainty of the neutron detector calibration below ±10 %, the neutron emission properties had to be experimentally characterized and reproduced through detailed modelling of the neutron source characteristics and geometry of the neutron generator. The detailed neutronics simulations were an essential part of both NG characterization and JET neutron detector calibration. The complex neutron emission properties of the NG were reproduced through a combination of simulations and highresolution neutron spectroscopy measurements. This meant that six different DT neutron source components resulting from NG's mixed beam operation were explicitly simulated and their relative intensities scaled based on experimentally obtained neutron spectrum measurements. Furthermore, the detailed model of the NG's geometry was produced based on information from the supplier of the NG and images from a computer tomography (CT) scan. Finally, the positioning of the neutron source inside the JET tokamak during in-situ calibration was reproduced based on the information from the remote handling system (RHS) at JET, the system responsible for the positioning of the source during the calibration experiment. The extensive effort presented in the paper significantly contributed to the total uncertainties of the calibration factors well within the target value of ±10 %.
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- 2020
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8. Metrofission Project: An Overview of the ENEA Contribution
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Capogni, Marco, De Felice, Pierino, and Loreti, Stefano
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- 2013
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9. Long Term Neutron Activation in JET DD Operation
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Zohar, Andrej, Lengar, Igor, Batistoni, Paola, Conroy, Sean, Cufar, Aljaz, Kierepko, Renata, Kos, Bor, Loreti, Stefano, Mietelski, Jerzy W., Nobs, Chantal R., Packer, Lee W., Pillon, Mario, Radulovic, Vladimir, Savva, Marilia, I, Snoj, Luka, Stamatelatos, Ion E., Stancar, Ziga, Vasilopoulou, Theodora, Wojcik-Gargula, Anna, Zohar, Andrej, Lengar, Igor, Batistoni, Paola, Conroy, Sean, Cufar, Aljaz, Kierepko, Renata, Kos, Bor, Loreti, Stefano, Mietelski, Jerzy W., Nobs, Chantal R., Packer, Lee W., Pillon, Mario, Radulovic, Vladimir, Savva, Marilia, I, Snoj, Luka, Stamatelatos, Ion E., Stancar, Ziga, Vasilopoulou, Theodora, and Wojcik-Gargula, Anna
- Abstract
In the 2019 C38 Deuterium-Deuterium campaign at JET several different ITER-relevant materials and dosimetry foils were irradiated in a specially designed long-term irradiation station located inside the vacuum vessel with the purpose of testing the activation of ITER materials by fusion neutrons. The samples were exposed to a neutron fluence of 1.9E14 n/cm(2) during JET discharges performed in the experimental campaign over a period of 5 months. Gamma ray spectroscopy measurements were performed on irradiated samples to determine the activation of different long-lived isotopes in the samples. Monte Carlo computational analysis was performed to support the experiment by using the measured neutron yield and irradiation time. In this paper we focus on the computational analysis of the dosimetry foils that are used in order to measure the local neutron energy spectrum and flux. The foils were chosen to cover different neutron energies: thus Yttrium and some of the Nickel and Cobalt reactions were used to determine the Deuterium-Tritium fusion fraction, while Scandium and Iron and some of the Nickel and Cobalt reactions were used for comparison of the computed activity with the experimental measurements. The obtained C/E values show a reasonably good agreement between calculated and measured activity, thus validating the computational methodology and providing the basis for the analysis of the ITER-relevant materials and future experiments performed at JET in the Deuterium-Tritium campaign.
- Published
- 2021
- Full Text
- View/download PDF
10. Structural and mechanical properties of polycrystalline silicon germanium for micromachining applications
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Sedky, Sherif, Fiorini, Paolo, Caymax, Matty, Loreti, Stefano, Baert, Kris, Hermans, Lou, and Mertens, Robert
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Germanium -- Research ,Nanotechnology -- Research ,Silicon crystals -- Research ,Stress analysis (Engineering) -- Research ,Engineering and manufacturing industries ,Science and technology - Abstract
In this paper, we propose polycrystalline silicon germanium (poly SiGe) as a material suitable for MEMS applications. Films are prepared by chemical vapor deposition (CVD) at atmospheric pressure (AP) or reduced pressure (RP). The structure of the films is investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM) for different deposition and annealing conditions. The stress in the as-grown and annealed layers is measured, and the correlation between stress and structural properties is discussed. It is demonstrated that by adjusting the deposition conditions, the stress of the as-grown material can be varied from -145 to +60 MPa. Examples of poly SiGe micromachined devices, prepared at 650 [degrees] C, are presented. It is shown that by using as-grown poly SiGe, it is possible to realize surface-micromachined suspended membranes having 0.6-[[micro]meter]-wide and 50-[[micro]meter]-long supports. The effect of the average stress and stress gradient on the mechanical stability of surface-micromachined structures is illustrated. Finally, the strain in poly SiGe is measured, and it is found to vary, according to the deposition conditions from -6.88 x [10.sup.-1] to 3.6 x [10.sup.-1]. These values are compared to those measured for APCVD poly Si. [358] Index Terms - Bolometers, poly SiGe, stress, surface micromachining.
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- 1998
11. Lithium iron oxide as alternative anode for li-ion batteries
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Prosini, Pier Paolo, Carewska, Maria, Loreti, Stefano, Minarini, Carla, and Passerini, Stefano
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- 2000
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12. 14 MeV Neutrons for 99Mo/99mTc Production: Experiments, Simulations and Perspectives
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Capogni, Marco, primary, Pietropaolo, Antonino, additional, Quintieri, Lina, additional, Angelone, Maurizio, additional, Boschi, Alessandra, additional, Capone, Mauro, additional, Cherubini, Nadia, additional, De Felice, Pierino, additional, Dodaro, Alessandro, additional, Duatti, Adriano, additional, Fazio, Aldo, additional, Loreti, Stefano, additional, Martini, Petra, additional, Pagano, Guglielmo, additional, Pasquali, Micol, additional, Pillon, Mario, additional, Uccelli, Licia, additional, and Pizzuto, Aldo, additional
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- 2018
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13. High temperature operation of single crystal diamond detectors
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Angelone, Maurizio, primary, Pilotti, Riccardo, additional, Sarto, Francesca, additional, Fiore, Salvatore, additional, Loreti, Stefano, additional, Pagano, Guglielmo, additional, Pillon, Mario, additional, Marinelli, Marco, additional, Milani, Enrico, additional, Verona, Claudio, additional, Prestopino, Giuseppe, additional, and Verona-Rinati, Gianluca, additional
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- 2016
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14. Photoluminescence and Thermoluminescence Investigation of Europium- and Dysprosium-Doped Dibarium Magnesium Silicate Phosphor
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Shrivastava, Ravi, primary, Kaur, Jagjeet, additional, Dubey, Vikas, additional, Jaykumar, Beena, additional, and Loreti, Stefano, additional
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- 2014
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15. Recent advances in digital coincidence counting for Radionuclide Metrology
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Keightley, John, primary, Bobin, Christophe, additional, Bouchard, Jacques, additional, Capogni, Marco, additional, Loreti, Stefano, additional, and Roteta, Miguel, additional
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- 2013
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16. Photoluminescence and Thermoluminescence Investigation of Europium- and Dysprosium-Doped Dibarium Magnesium Silicate Phosphor.
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Shrivastava, Ravi, Kaur, Jagjeet, Dubey, Vikas, Jaykumar, Beena, and Loreti, Stefano
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PHOTOLUMINESCENCE ,THERMOLUMINESCENCE ,EUROPIUM ,DYSPROSIUM ,DOPING agents (Chemistry) ,MAGNESIUM silicates ,PHOSPHORS - Abstract
Europium- and dysprosium-doped barium magnesium silicate powder with different concentrations of dysprosium was synthesized using solid state reactions. The prepared phosphors were characterized using photoluminescence. Prominent green color emissions were obtained under ultraviolet excitation. The thermoluminescence glow curves of the samples were measured after various delay times. With increased delay time, the intensity of the thermoluminescence peak decays, and the position of the thermoluminescence peak shifts to higher temperatures, indicating the considerable retrapping associated with general order kinetics. Refined lattice parameters of monoclinic phosphor were calculated. [ABSTRACT FROM AUTHOR]
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- 2015
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17. A Critical Assessment of Different Models of the Metastability in a-Si:H
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Rosa Chierchia, Rosa Chierchia, primary, Stefano Loreti, Stefano Loreti, additional, Vittorio Loreto, Vittorio Loreto, additional, Luigi Mariucci, Luigi Mariucci, additional, Carla Minarini, Carla Minarini, additional, and Alberto Mittiga, Alberto Mittiga, additional
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- 1998
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18. Modelling of the neutron production in a mixed beam DT neutron generator
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Cufar, Aljaz, Batistoni, Paola, Ghani, Zamir, Giacomelli, Luca, Lengar, Igor, Loreti, Stefano, Milocco, Alberto, Popovichev, Sergey, Pillon, Mario, Rigamonti, Davide, Rebai, Marica, Tardocchi, Marco, Snoj, Luka, Abduallev, S., Abhangi, M., Abreu, P., Afzal, M., Aggarwal, K. M., Ahlgren, T., Ahn, J. H., Aho-Mantila, L., Aiba, N., Airila, M., Albanese, R., Aldred, V., Alegre, D., Alessi, E., Aleynikov, P., Alfier, A., Alkseev, A., Allinson, M., Alper, B., Alves, E., Ambrosino, G., Ambrosino, R., Amicucci, L., Amosov, V., Sunden, E. Andersson, Angelone, M., Anghel, M., Angioni, C., Appel, L., Appelbee, C., Arena, P., Ariola, M., Arnichand, H., Arshad, S., Ash, A., Ashikawa, N., Aslanyan, V., Asunta, O., Auriemma, F., Austin, Y., Avotina, L., Axton, M. D., Ayres, C., Bacharis, M., Baciero, A., Baiao, D., Bailey, S., Baker, A., Balboa, I., Balden, M., Balshaw, N., Bament, R., Banks, J. W., Baranov, Y. F., Barnard, M. A., Barnes, D., Barnes, M., Barnsley, R., Wiechec, A. Baron, Orte, L. Barrera, Baruzzo, M., Basiuk, V., Bassan, M., Bastow, R., Batista, A., Batistoni, P., Baughan, R., Bauvir, B., Baylor, L., Bazylev, B., Beal, J., Beaumont, P. S., Beckers, M., Beckett, B., Becoulet, A., Bekris, N., Beldishevski, M., Bell, K., Belli, F., Bellinger, M., Belonohy, E., Ben Ayed, N., Benterman, N. A., Bergsaker, H., Bernardo, J., Bernert, M., Berry, M., Bertalot, L., Besliu, C., Beurskens, M., Bieg, B., Bielecki, J., Biewer, T., Bigi, M., Bilkova, P., Binda, F., Bisoffi, A., Bizarro, J. P. S., Bjorkas, C., Blackburn, J., Blackman, K., Blackman, T. R., Blanchard, P., Blatchford, P., Bobkov, V., Boboc, A., Bodnar, G., Bogar, O., Bolshakova, I., Bolzonella, T., Bonanomi, N., Bonelli, F., Boom, J., Booth, J., Borba, D., Borodin, D., Borodkina, I., Botrugno, A., Bottereau, C., Boulting, P., Bourdelle, C., Bowden, M., Bower, C., Bowman, C., Boyce, T., Boyd, C., Boyer, H. J., Bradshaw, J. M. A., Braic, V., Bravanec, R., Breizman, B., Bremond, S., Brennan, P. D., Breton, S., Brett, A., Brezinsek, S., Bright, M. D. J., Brix, M., Broeckx, W., Brombin, M., Broslawski, A., Brown, D. P. D., Brown, M., Bruno, E., Bucalossi, J., Buch, J., Buchanan, J., Buckley, M. A., Budny, R., Bufferand, H., Bulman, M., Bulmer, N., Bunting, P., Buratti, P., Burckhart, A., Buscarino, A., Busse, A., Butler, N. K., Bykov, I., Byrne, J., Cahyna, P., Calabro, G., Calvo, I., Camenen, Y., Camp, P., Campling, D. C., Cane, J., Cannas, B., Capel, A. J., Card, P. J., Cardinali, A., Carman, P., Carr, M., Carralero, D., Carraro, L., Carvalho, B. B., Carvalho, I., Carvalho, P., Casson, F. J., Castaldo, C., Catarino, N., Caumont, J., Causa, F., Cavazzana, R., Cave-Ayland, K., Cavinato, M., Cecconello, M., Ceccuzzi, S., Cecil, E., Cenedese, A., Cesario, R., Challis, C. D., Chandler, M., Chandra, D., Chang, C. S., Chankin, A., Chapman, I. T., Chapman, S. C., Chernyshova, M., Chitarin, G., Ciraolo, G., Ciric, D., Citrin, J., Clairet, F., Clark, E., Clark, M., Clarkson, R., Clatworthy, D., Clements, C., Cleverly, M., Coad, J. P., Coates, P. A., Cobalt, A., Coccorese, V., Cocilovo, V., Coda, S., Coelho, R., Coenen, J. W., Coffey, I., Colas, L., Collins, S., Conka, D., Conroy, S., Conway, N., Coombs, D., Cooper, D., Cooper, S. R., Corradino, C., Corre, Y., Corrigan, G., Cortes, S., Coster, D., Couchman, A. S., Cox, M. P., Craciunescu, T., Cramp, S., Craven, R., Crisanti, F., Croci, G., Croft, D., Crombe, K., Crowe, R., Cruz, N., Cseh, G., Cufar, A., Cullen, A., Curuia, M., Czarnecka, A., Dabirikhah, H., Dalgliesh, P., Dalley, S., Dankowski, J., Darrow, D., Davies, O., Davis, W., Day, C., Day, I. E., De Bock, M., de Castro, A., de la Cal, E., de la Luna, E., De Masi, G., de Pablos, J. L., De Temmerman, G., De Tommasi, G., de Vries, P., Deakin, K., Deane, J., Agostini, F. Degli, Dejarnac, R., Delabie, E., den Harder, N., Dendy, R. O., Denis, J., Denner, P., Devaux, S., Devynck, P., Di Maio, F., Di Siena, A., Di Troia, C., Dinca, P., D'Inca, R., Ding, B., Dittmar, T., Doerk, H., Doerner, R. P., Donne, T., Dorling, S. E., Dormido-Canto, S., Doswon, S., Douai, D., Doyle, P. T., Drenik, A., Drewelow, P., Drews, P., Duckworth, Ph., Dumont, R., Dumortier, P., Dunai, D., Dunne, M., Duran, I., Durodie, F., Dutta, P., Duval, B. P., Dux, R., Dylst, K., Dzysiuk, N., Edappala, P. V., Edmond, J., Edwards, A. M., Edwards, J., Eich, Th., Ekedahl, A., El-Jorf, R., Elsmore, C. G., Enachescu, M., Ericsson, G., Eriksson, F., Eriksson, J., Eriksson, L. G., Esposito, B., Esquembri, S., Esser, H. G., Esteve, D., Evans, B., Evans, G. E., Evison, G., Ewart, G. D., Fagan, D., Faitsch, M., Falie, D., Fanni, A., Fasoli, A., Faustin, J. M., Fawlk, N., Fazendeiro, L., Fedorczak, N., Felton, R. C., Fenton, K., Fernades, A., Fernandes, H., Ferreira, J., Fessey, J. A., Fevrier, O., Ficker, O., Field, A., Fietz, S., Figueiredo, A., Figueiredo, J., Fil, A., Finburg, P., Firdaouss, M., Fischer, U., Fittill, L., Fitzgerald, M., Flammini, D., Flanagan, J., Fleming, C., Flinders, K., Fonnesu, N., Fontdecaba, J. M., Formisano, A., Forsythe, L., Fortuna, L., Fortuna-Zalesna, E., Fortune, M., Foster, S., Franke, T., Franklin, T., Frasca, M., Frassinetti, L., Freisinger, M., Fresa, R., Frigione, D., Fuchs, V., Fuller, D., Futatani, S., Fyvie, J., Gal, K., Galassi, D., Galazka, K., Galdon-Quiroga, J., Gallagher, J., Gallart, D., Galvao, R., Gao, X., Gao, Y., Garcia, J., Garcia-Carrasco, A., Garcia-Munoz, M., Gardarein, J. -L., Garzotti, L., Gaudio, P., Gauthier, E., Gear, D. F., Gee, S. J., Geiger, B., Gelfusa, M., Gerasimov, S., Gervasini, G., Gethins, M., Ghani, Z., Ghate, M., Gherendi, M., Giacalone, J. C., Giacomelli, L., Gibson, C. S., Giegerich, T., Gil, C., Gil, L., Gilligan, S., Gin, D., Giovannozzi, E., Girardo, J. B., Giroud, C., Giruzzi, G., Gloeggler, S., Godwin, J., Goff, J., Gohil, P., Goloborod'ko, V., Gomes, R., Goncalves, B., Goniche, M., Goodliffe, M., Goodyear, A., Gorini, G., Gosk, M., Goulding, R., Goussarov, A., Gowland, R., Graham, B., Graham, M. E., Graves, J. P., Grazier, N., Grazier, P., Green, N. R., Greuner, H., Grierson, B., Griph, F. S., Grisolia, C., Grist, D., Groth, M., Grove, R., Grundy, C. N., Grzonka, J., Guard, D., Guerard, C., Guillemaut, C., Guirlet, R., Gurl, C., Utoh, H. H., Hackett, L. J., Hacquin, S., Hagar, A., Hager, R., Hakola, A., Halitovs, M., Hall, S. J., Cook, S. P. Hallworth, Hamlyn-Harris, C., Hammond, K., Harrington, C., Harrison, J., Harting, D., Hasenbeck, F., Hatano, Y., Hatch, D. R., Haupt, T. D. V., Hawes, J., Hawkes, N. C., Hawkins, J., Hawkins, P., Haydon, P. W., Hayter, N., Hazel, S., Heesterman, P. J. L., Heinola, K., Hellesen, C., Hellsten, T., Helou, W., Hemming, O. N., Hender, T. C., Henderson, M., Henderson, S. S., Henriques, R., Hepple, D., Hermon, G., Hertout, P., Hidalgo, C., Highcock, E. G., Hill, M., Hillairet, J., Hillesheim, J., Hillis, D., Hizanidis, K., Hjalmarsson, A., Hobirk, J., Hodille, E., Hogben, C. H. A., Hogeweij, G. M. D., Hollingsworth, A., Hollis, S., Homfray, D. A., Horacek, J., Hornung, G., Horton, A. R., Horton, L. D., Horvath, L., Hotchin, S. P., Hough, M. R., Howarth, P. J., Hubbard, A., Huber, A., Huber, V., Huddleston, T. M., Hughes, M., Huijsmans, G. T. A., Hunter, C. L., Huynh, P., Hynes, A. M., Iglesias, D., Imazawa, N., Imbeaux, F., Imrisek, M., Incelli, M., Innocente, P., Irishkin, M., Ivanova-Stanik, I., Jachmich, S., Jacobsen, A. S., Jacquet, P., Jansons, J., Jardin, A., Jarvinen, A., Jaulmes, F., Jednorog, S., Jenkins, I., Jeong, C., Jepu, I., Joffrin, E., Johnson, R., Johnson, T., Johnston, Jane, Joita, L., Jones, G., Jones, T. T. C., Hoshino, K. 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T., Lanthaler, S., Lapins, J., Lasa, A., Last, J. R., Laszynska, E., Lawless, R., Lawson, A., Lawson, K. D., Lazaros, A., Lazzaro, E., Leddy, J., Lee, S., Lefebvre, X., Leggate, H. J., Lehmann, J., Lehnen, M., Leichtle, D., Leichuer, P., Leipold, F., Lengar, I., Lennholm, M., Lerche, E., Lescinskis, A., Lesnoj, S., Letellier, E., Leyland, M., Leysen, W., Li, L., Liang, Y., Likonen, J., Linke, J., Linsmeier, Ch., Lipschultz, B., Liu, G., Liu, Y., Lo Schiavo, V. P., Loarer, T., Loarte, A., Lobel, R. C., Lomanowski, B., Lomas, P. J., Lonnroth, J., Lopez, J. M., Lopez-Razola, J., Lorenzini, R., Losada, U., Lovell, J. J., Loving, A. B., Lowry, C., Luce, T., Lucock, R. M. A., Lukin, A., Luna, C., Lungaroni, M., Lungu, C. P., Lungu, M., Lunniss, A., Lupelli, I., Lyssoivan, A., Macdonald, N., Macheta, P., Maczewa, K., Magesh, B., Maget, P., Maggi, C., Maier, H., Mailloux, J., Makkonen, T., Makwana, R., Malaquias, A., Malizia, A., Manas, P., Manning, A., Manso, M. E., Mantica, P., Mantsinen, M., Manzanares, A., Maquet, Ph., Marandet, Y., Marcenko, N., Marchetto, C., Marchuk, O., Marinelli, M., Marinucci, M., Markovic, T., Marocco, D., Marot, L., Marren, C. A., Marshal, R., Martin, A., Martin, Y., Martin de Aguilera, A., Martinez, F. J., Martin-Solis, J. R., Martynova, Y., Maruyama, S., Masiello, A., Maslov, M., Matejcik, S., Mattei, M., Matthews, G. F., Maviglia, F., Mayer, M., Mayoral, M. L., May-Smith, T., Mazon, D., Mazzotta, C., McAdams, R., McCarthy, P. J., McClements, K. G., McCormack, O., McCullen, P. A., McDonald, D., McIntosh, S., McKean, R., McKehon, J., Meadows, R. C., Meakins, A., Medina, F., Medland, M., Medley, S., Meigh, S., Meigs, A. G., Meisl, G., Meitner, S., Meneses, L., Menmuir, S., Mergia, K., Merrigan, I. R., Mertens, Ph., Meshchaninov, S., Messiaen, A., Meyer, H., Mianowski, S., Michling, R., Middleton-Gear, D., Miettunen, J., Militello, F., Militello-Asp, E., Miloshevsky, G., Mink, F., Minucci, S., Miyoshi, Y., Mlynar, J., Molina, D., Monakhov, I., Moneti, M., Mooney, R., Moradi, S., Mordijck, S., Moreira, L., Moreno, R., Moro, F., Morris, A. W., Morris, J., Moser, L., Mosher, S., Moulton, D., Murari, A., Muraro, A., Murphy, S., Asakura, N. N., Na, Y. S., Nabais, F., Naish, R., Nakano, T., Nardon, E., Naulin, V., Nave, M. F. F., Nedzelski, I., Nemtsev, G., Nespoli, F., Neto, A., Neu, R., Neverov, V. S., Newman, M., Nicholls, K. J., Nicolas, T., Nielsen, A. H., Nielsen, P., Nilsson, E., Nishijima, D., Noble, C., Nocente, M., Nodwell, D., Nordlund, K., Nordman, H., Nouailletas, R., Nunes, I., Oberkofler, M., Odupitan, T., Ogawa, M. T., O'Gorman, T., Okabayashi, M., Olney, R., Omolayo, O., O'Mullane, M., Ongena, J., Orsitto, F., Orszagh, J., Oswuigwe, B. I., Otin, R., Owen, A., Paccagnella, R., Pace, N., Pacella, D., Packer, L. W., Page, A., Pajuste, E., Palazzo, S., Pamela, S., Panja, S., Papp, P., Paprok, R., Parail, V., Park, M., Diaz, F. Parra, Parsons, M., Pasqualotto, R., Patel, A., Pathak, S., Paton, D., Patten, H., Pau, A., Pawelec, E., Soldan, C. Paz, Peackoc, A., Pearson, I. J., Pehkonen, S. -P., Peluso, E., Penot, C., Pereira, A., Pereira, R., Puglia, P. P. Pereira, von Thun, C. Perez, Peruzzo, S., Peschanyi, S., Peterka, M., Petersson, P., Petravich, G., Petre, A., Petrella, N., Petrzilka, V., Peysson, Y., Pfefferle, D., Philipps, V., Pillon, M., Pintsuk, G., Piovesan, P., Pires dos Reis, A., Piron, L., Pironti, A., Pisano, F., Pitts, R., Pizzo, F., Plyusnin, V., Pomaro, N., Pompilian, O. G., Pool, P. J., Popovichev, S., Porfiri, M. T., Porosnicu, C., Porton, M., Possnert, G., Potzel, S., Powell, T., Pozzi, J., Prajapati, V., Prakash, R., Prestopino, G., Price, D., Price, M., Price, R., Prior, P., Proudfoot, R., Pucella, G., Puglia, P., Puiatti, M. E., Pulley, D., Purahoo, K., Puetterich, Th., Rachlew, E., Rack, M., Ragona, R., Rainford, M. S. J., Rakha, A., Ramogida, G., Ranjan, S., Rapson, C. J., Rasmussen, J. J., Rathod, K., Ratta, G., Ratynskaia, S., Ravera, G., Rayner, C., Rebai, M., Reece, D., Reed, A., Refy, D., Regan, B., Regana, J., Reich, M., Reid, N., Reimold, F., Reinhart, M., Reinke, M., Reiser, D., Rendell, D., Reux, C., Reyes Cortes, S. D. A., Reynolds, S., Riccardo, V., Richardson, N., Riddle, K., Rigamonti, D., Rimini, F. G., Risner, J., Riva, M., Roach, C., Robins, R. J., Robinson, S. A., Robinson, T., Robson, D. W., Roccella, R., Rodionov, R., Rodrigues, P., Rodriguez, J., Rohde, V., Romanelli, F., Romanelli, M., Romanelli, S., Romazanov, J., Rowe, S., Rubel, M., Rubinacci, G., Rubino, G., Ruchko, L., Ruiz, M., Ruset, C., Rzadkiewicz, J., Saarelma, S., Sabot, R., Safi, E., Sagar, P., Saibene, G., Saint-Laurent, F., Salewski, M., Salmi, A., Salmon, R., Salzedas, F., Samaddar, D., Samm, U., Sandiford, D., Santa, P., Santala, M. I. K., Santos, B., Santucci, A., Sartori, F., Sartori, R., Sauter, O., Scannell, R., Schlummer, T., Schmid, K., Schmidt, V., Schmuck, S., Schneider, M., Schoepf, K., Schworer, D., Scott, S. D., Sergienko, G., Sertoli, M., Shabbir, A., Sharapov, S. E., Shaw, A., Shaw, R., Sheikh, H., Shepherd, A., Shevelev, A., Shumack, A., Sias, G., Sibbald, M., Sieglin, B., Silburn, S., Silva, A., Silva, C., Simmons, P. A., Simpson, J., Simpson-Hutchinson, J., Sinha, A., Sipila, S. K., Sips, A. C. C., Siren, P., Sirinelli, A., Sjostrand, H., Skiba, M., Skilton, R., Slabkowska, K., Slade, B., Smith, N., Smith, P. G., Smith, R., Smith, T. J., Smithies, M., Snoj, L., Soare, S., Solano, E. R., Somers, A., Sommariva, C., Sonato, P., Sopplesa, A., Sousa, J., Sozzi, C., Spagnolo, S., Spelzini, T., Spineanu, F., Stables, G., Stamatelatos, I., Stamp, M. F., Staniec, P., Stankunas, G., Stan-Sion, C., Stead, M. J., Stefanikova, E., Stepanov, I., Stephen, A. V., Stephen, M., Stevens, A., Stevens, B. D., Strachan, J., Strand, P., Strauss, H. R., Strom, P., Stubbs, G., Studholme, W., Subba, F., Summers, H. P., Svensson, J., Swiderski, L., Szabolics, T., Szawlowski, M., Szepesi, G., Suzuki, T. T., Tal, B., Tala, T., Talbot, A. R., Talebzadeh, S., Taliercio, C., Tamain, P., Tame, C., Tang, W., Tardocchi, M., Taroni, L., Taylor, D., Taylor, K. A., Tegnered, D., Telesca, G., Teplova, N., Terranova, D., Testa, D., Tholerus, E., Thomas, J., Thomas, J. 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- Subjects
neutron emission ,enea-jsi subroutine ,mcuned ,mixed beam ,Nuclear Experiment ,dt generator ,calibration - Abstract
Compact DT neutron generators based on accelerators are often built on the principle of a mixed beam operation, meaning that deuterium (D) and tritium (T) are both present in the ion beam and in the target. Moreover, the beam consists of a mixture of ions and ionized molecules (D, T ions, and ionized D-D, T-T and D-T molecules) so the relevant source components come from T(d, n), D(t, n), D(d, n) and T(t, 2n) reactions at different ion energies. The method for assessing the relative amplitudes of different source components (DD, DT, TT) is presented. The assessment relies on the measurement of the neutron spectrum of different DT components (T(d, n) and D(t, n) at different energies) using a high resolution neutron spectrometer, e.g. a diamond detector, fusion reaction cross-sections, and simulations of neutron generation in the target. Through this process a complete description of the neutron source properties of the mixed beam neutron generator can be made and a neutron source description card, in a format suitable for Monte Carlo code MCNP, produced.
19. 14 MeV Neutrons for 99Mo/99mTc Production: Experiments, Simulations and Perspectives.
- Author
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Pietropaolo, Antonino, Angelone, Maurizio, Capone, Mauro, Cherubini, Nadia, Dodaro, Alessandro, Loreti, Stefano, Pagano, Guglielmo, Pillon, Mario, Pizzuto, Aldo, Capogni, Marco, Quintieri, Lina, De Felice, Pierino, Fazio, Aldo, Boschi, Alessandra, Martini, Petra, Uccelli, Licia, Duatti, Adriano, and Pasquali, Micol
- Subjects
NEUTRONS ,TECHNETIUM ,NEUTRON generators ,SINGLE-photon emission computed tomography ,RADIONUCLIDE generators - Abstract
Background: the gamma-emitting radionuclide Technetium-99m (
99m Tc) is still the workhorse of Single Photon Emission Computed Tomography (SPECT) as it is used worldwide for the diagnosis of a variety of phatological conditions.99m Tc is obtained from99 Mo/99m Tc generators as pertechnetate ion, which is the ubiquitous starting material for the preparation of99m Tc radiopharmaceuticals.99 Mo in such generators is currently produced in nuclear fission reactors as a by-product of235 U fission. Here we investigated an alternative route for the production of99 Mo by irradiating a natural metallic molybdenum powder using a 14-MeV accelerator-driven neutron source. Methods: after irradiation, an efficient isolation and purification of the final99m Tc-pertechnetate was carried out by means of solvent extraction. Monte Carlo simulations allowed reliable predictions of99 Mo production rates for a newly designed 14-MeV neutron source (New Sorgentina Fusion Source). Results: in traceable metrological conditions, a level of radionuclidic purity consistent with accepted pharmaceutical quality standards, was achieved. Conclusions: we showed that this source, featuring a nominal neutron emission rate of about 1015 s−1 , may potentially supply an appreciable fraction of the current99 Mo global demand. This study highlights that a robust and viable solution, alternative to nuclear fission reactors, can be accomplished to secure the long-term supply of99 Mo. [ABSTRACT FROM AUTHOR]- Published
- 2018
- Full Text
- View/download PDF
20. Point Light Sources Based on Color Centers in LiF Films for Scanning Near-Field Optical Microscopy.
- Author
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Bonfigli, Francesco, Loreti, Stefano, Marolo, Tiziana, Montereali, Rosa Maria, Pace, Angelo, Santoni, Antonio, Piccinini, Massimo, and Sekatskii, Sergey
- Subjects
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THIN films , *FLUORESCENCE , *LUMINESCENCE , *NEAR-field microscopy , *PHYSICS , *PHYSICAL sciences - Abstract
Local fluorescent probes based on low-energy electron beam irradiated lithium fluoride (LiF) thin films were preparated and tested for their applications in Scanning Near-Field Optical Microscopy. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]
- Published
- 2004
- Full Text
- View/download PDF
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