| Article | |
| Report number | arXiv:2006.05966 |
| Title | Positron production using a 9 MeV electron linac for the GBAR experiment |
| Author(s) | Charlton, M. (Swansea U.) ; Choi, J.J. (Seoul Natl. U., Dept. Phys. Astron.) ; Chung, M. (UNIST, Ulsan) ; Cladé, P. (Paris, Lab. Kastler Brossel) ; Comini, P. (IRFU, Saclay) ; Crépin, P.P. (Paris, Lab. Kastler Brossel) ; Crivelli, P. (Zurich, ETH) ; Dalkarov, O. (Lebedev Inst.) ; Debu, P. (IRFU, Saclay) ; Dodd, L. (Swansea U.) ; Douillet, A. (Paris, Lab. Kastler Brossel ; Saclay) ; Guellati-Khélifa, S. (Paris, Lab. Kastler Brossel) ; Hervieux, P.A. (IPCMS, Strasbourg) ; Hilico, L. (Paris, Lab. Kastler Brossel) ; Husson, A. (CSNSM, Orsay) ; Indelicato, P. (Paris, Lab. Kastler Brossel) ; Janka, G. (Zurich, ETH) ; Jonsell, S. (Stockholm U.) ; Karr, J-P (Paris, Lab. Kastler Brossel) ; Kim, B.H. (Seoul Natl. U., Dept. Phys. Astron.) ; Kim, E-S. ; Kim, S.K. ; Ko, Y. (Seoul Natl. U., Dept. Phys. Astron. ; IBS, Daejeon, CUP) ; Kosinski, T. (NCBJ, Swierk) ; Kuroda, N. (Tokyo U., Komaba) ; Latacz, B. (IRFU, Saclay ; Wako, RIKEN) ; Lee, H. (Seoul Natl. U., Dept. Phys. Astron.) ; Lee, J. (IBS, Daejeon, CUP) ; Leite, A.M.M. (IRFU, Saclay) ; Lévêque, K. (IPCMS, Strasbourg) ; Lim, E. ; Liszkay, L. (IRFU, Saclay) ; Lotrus, P. (IRFU, Saclay) ; Louvradoux, T. (Paris, Lab. Kastler Brossel) ; Lunney, D. (CSNSM, Orsay) ; Manfredi, G. (IPCMS, Strasbourg) ; Mansoulié, B. (IRFU, Saclay) ; Matusiak, M. (NCBJ, Swierk) ; Mornacchi, G. (CERN) ; Nesvizhevsky, V.V. (Laue-Langevin Inst.) ; Nez, F. (Paris, Lab. Kastler Brossel) ; Niang, S. (IRFU, Saclay) ; Nishi, R. (Tokyo U., Komaba) ; Nourbaksh, S. (CERN) ; Park, K.H. (Seoul Natl. U., Dept. Phys. Astron.) ; Paul, N. (Paris, Lab. Kastler Brossel) ; Pérez, P. (IRFU, Saclay) ; Procureur, S. (IRFU, Saclay) ; Radics, B. (Zurich, ETH) ; Regenfus, C. (Zurich, ETH) ; Rey, J.M. (IRFU, Saclay) ; Reymond, J.M. (IRFU, Saclay) ; Reynaud, S. (Paris, Lab. Kastler Brossel) ; Roussé, J.Y. (IRFU, Saclay) ; Rousselle, O. (Paris, Lab. Kastler Brossel) ; Rubbia, A. (Zurich, ETH) ; Rzadkiewicz, J. (NCBJ, Swierk) ; Sacquin, Y. (IRFU, Saclay) ; Schmidt-Kaler, F. (Mainz U., Inst. Phys.) ; Staszczak, M. (NCBJ, Swierk) ; Tuchming, B. (IRFU, Saclay) ; Vallage, B. (IRFU, Saclay) ; Voronin, A. (Lebedev Inst.) ; Welker, A. (CERN) ; Van Der Werf, D.P. (Swansea U.) ; Wolf, S. (Mainz U., Inst. Phys.) ; Won, D. (Seoul Natl. U., Dept. Phys. Astron.) ; Wronka, S. (NCBJ, Swierk) ; Yamazaki, Y. (Wako, RIKEN) ; Yoo, K.H. (UNIST, Ulsan) |
| Publication | 2021-01-01 |
| Imprint | 2020-06-10 |
| Number of pages | 33 |
| Note | Submitted to Nucl.Instrum.Meth. Submitted to Nucl.Instrum.Meth. published in NIM A. 33 pages 9 figures |
| In: | Nucl. Instrum. Methods Phys. Res., A 985 (2021) 164657 |
| DOI | 10.1016/j.nima.2020.164657 (publication) |
| Subject category | physics.ins-det ; Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN AD ; GBAR AD-7 |
| Abstract | For the GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment at CERN's Antiproton Decelerator (AD) facility we have constructed a source of slow positrons, which uses a low-energy electron linear accelerator (linac). The driver linac produces electrons of 9 MeV kinetic energy that create positrons from bremsstrahlung-induced pair production. Staying below 10 MeV ensures no persistent radioactive activation in the target zone and that the radiation level outside the biological shield is safe for public access. An annealed tungsten-mesh assembly placed directly behind the target acts as a positron moderator. The system produces $5\times10^7$ slow positrons per second, a performance demonstrating that a low-energy electron linac is a superior choice over positron-emitting radioactive sources for high positron flux. |
| Copyright/License | preprint: (Licenses: arXiv nonexclusive-distrib 1.0, CC BY-NC-SA 4.0) publication: © 2020-2024 Elsevier B.V. |
Corresponding record in: Inspire
Record created 2020-07-01, last modified 2024-06-11
