Positron production using a 9 MeV electron linac for the GBAR experiment
作者： M. Charlton , J.J. Choi , M. Chung , P. Cladé , P. Comini
DOI: 10.1016/J.NIMA.2020.164657
关键词:
摘要: Abstract For the GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment CERN’s Antiproton Decelerator (AD) facility we have constructed a source slow positrons, which uses low-energy electron linear accelerator (linac). The driver linac produces electrons 9 MeV kinetic energy that create positrons from bremsstrahlung-induced pair production. Staying below 10 MeV ensures no persistent radioactive activation in target zone and radiation level outside biological shield is safe for public access. An annealed tungsten-mesh assembly placed directly behind acts as positron moderator. system 5 × 1 0 7 per second, performance demonstrating superior choice over positron-emitting sources high flux.
arxiv.org
harvard.edu
archives-ouvertes.fr
sci-hub.st 参考文章(48)
S. Pendyala, T.A. Lewis, D.L. Donohue, L.D. Hulett, The Oak Ridge National Laboratory slow positron source ,(1988)
Pierre Grandemange, Piégeage et accumulation de positons issus d’un faisceau pulsé produit par un accélérateur pour l’étude de l’interaction gravitationnelle de l’antimatière Université Paris Sud - Paris XI. ,(2013)
SV Stepanov, VM Byakov, Principles and Applications of Positron and Positronium Chemistry ,(2003)
Stefano Aghion, C Amsler, A Ariga, T Ariga, AS Belov, Germano Bonomi, P Bräunig, J Bremer, Roberto Sennen Brusa, L Cabaret, Massimo Caccia, R Caravita, F Castelli, G Cerchiari, K Chlouba, S Cialdi, D Comparat, Giovanni Consolati, A Demetrio, L Di Noto, M Doser, A Dudarev, A Ereditato, C Evans, J Fesel, A Fontana, OK Forslund, S Gerber, M Giammarchi, Angela Gligorova, S Gninenko, Francesco Guatieri, S Haider, H Holmestad, Torkjell Huse, IL Jernelv, E Jordan, T Kaltenbacher, A Kellerbauer, M Kimura, T Koetting, D Krasnicky, V Lagomarsino, P Lebrun, P Lansonneur, S Lehner, J Liberadzka, C Malbrunot, S Mariazzi, L Marx, V Matveev, Z Mazzotta, G Nebbia, P Nedelec, M Oberthaler, Nicola Pacifico, Davide Pagano, Luca Penasa, V Petracek, C Pistillo, F Prelz, Marco Prevedelli, Luca Ravelli, B Rienäcker, Ole Myren Røhne, S Rosenberger, Alberto Rotondi, M Sacerdoti, Heidi Sandaker, Romualdo Santoro, Paola Scampoli, F Sorrentino, M Spacek, J Storey, IM Strojek, G Testera, I Tietje, S Vamosi, E Widmann, P Yzombard, S Zavatarelli, J Zmeskal, AEgIS Collaboration, None, Positron bunching and electrostatic transport system for the production and emission of dense positronium clouds into vacuum Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 362, pp. 86- 92 ,(2015) , 10.1016/J.NIMB.2015.08.097
K. Wada, T. Hyodo, A. Yagishita, M. Ikeda, S. Ohsawa, T. Shidara, K. Michishio, T. Tachibana, Y. Nagashima, Y. Fukaya, M. Maekawa, A. Kawasuso, Increase in the beam intensity of the linac-based slow positron beam and its application at the Slow Positron Facility, KEK European Physical Journal D. ,vol. 66, pp. 37- ,(2012) , 10.1140/EPJD/E2012-20641-4
Ryoichi Suzuki, Toshiyuki Ohdaira, Akira Uedono, Yang Koo Cho, Sadafumi Yoshida, Yuuki Ishida, Takeshi Ohshima, Hisayoshi Itoh, Mitsukuni Chiwaki, Tomohisa Mikado, Tetsuo Yamazaki, Shoichiro Tanigawa, Investigation of Positron Moderator Materials for Electron-Linac-Based Slow Positron Beamlines Japanese Journal of Applied Physics. ,vol. 37, pp. 4636- 4643 ,(1998) , 10.1143/JJAP.37.4636
R. H. Howell, I. J. Rosenberg, M. J. Fluss, Production and use of low-energy, monoenergetic positron beams from electron LINACS Applied Physics A. ,vol. 43, pp. 247- 255 ,(1987) , 10.1007/BF00635179
Peter J. Schultz, K. G. Lynn, Interaction of positron beams with surfaces, thin films, and interfaces Reviews of Modern Physics. ,vol. 60, pp. 701- 779 ,(1988) , 10.1103/REVMODPHYS.60.701
G. F. Gribakin, J. A. Young, C. M. Surko, Positron-molecule interactions: Resonant attachment, annihilation, and bound states Reviews of Modern Physics. ,vol. 82, pp. 2557- 2607 ,(2010) , 10.1103/REVMODPHYS.82.2557
L Liszkay, Zs Kajcsos, M.-F Barthe, L Henry, G Duplâtre, A Nagy, Improved tungsten moderator structures for slow positron beams Applied Surface Science. ,vol. 194, pp. 16- 19 ,(2002) , 10.1016/S0169-4332(02)00105-8