The ALPHA-2 apparatus - facilitating experimentation with trapped antihydrogen
journal contribution
posted on 2025-05-13, 13:10 authored by R Akbari, BXR Alves, CJ Baker, M Baquero-Ruiz, W Bertsche, E Butler, C Burrows, A Capra, CL Cesar, M Charlton, R Collister, A Cridland, S Eriksson, A Evans, LT Evans, N Evetts, J Fajans, T Friesen, MC Fujiwara, DR Gill, P Grandemange, P Granum, A Gutierrez, JS Hangst, ME Hayden, D Hodgkinson, CA Isaac, A Ishida, MA Johnson, JM Jones, SA Jones, S Jonsell, A Khramov, L Kurchaninov, A Little, N Madsen, D Maxwell, JTK McKenna, S Menary, JM Michan, T Momose, PS Mullan, K Olchanski, A Olin, J Peszka, A Povilus, A Powell, P Pusa, C Rasmussen, RL Sacramento, M Sameed, E Sarid, DM Silveira, C So, S Stracka, Graham StutterGraham Stutter, TD Tharp, RI Thompson, C Torkzaban, DP van der Werf, JS WurteleThis paper describes the ALPHA-2 apparatus, used at the CERN Antiproton Decelerator facility for the study of trapped antihydrogen atoms. Details of both the construction and performance are included. Prominence is given to both the new and the improved features, with respect to the original ALPHA assembly, of the apparatus including a stand-alone antiproton catching trap, the traps used to mix antiparticles to produce the anti-atoms, the magnetic atom trap used to hold some of them, and access for laser light to facilitate excitation of the antihydrogen 1S-2P and 1S-2S transitions.
History
Publication status
- Published
File Version
- Published version
Journal
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated EquipmentISSN
0168-9002Publisher
Elsevier BVPublisher URL
External DOI
Volume
1072Article number
170194Department affiliated with
- Physics and Astronomy Publications
Institution
University of SussexFull text available
- Yes
Peer reviewed?
- Yes
