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. 2009 Dec;80(12):123701.
doi: 10.1063/1.3266967.

Antiproton, positron, and electron imaging with a microchannel plate/phosphor detector

ALPHA Collaboration; G B Andresen, W Bertsche, P D Bowe, C C Bray, E Butler, C L Cesar, S Chapman, M Charlton, J Fajans, M C Fujiwara, D R Gill, J S Hangst, W N Hardy, R S Hayano, M E Hayden, A J Humphries, R Hydomako, L V Jørgensen, S J Kerrigan, L Kurchaninov, R Lambo, N Madsen, P Nolan, K Olchanski, A Olin, A P Povilus, P Pusa, E Sarid, S Seif El Nasr, D M Silveira, J W Storey, R I Thompson, D P van der Werf, Y Yamazaki

Antiproton, positron, and electron imaging with a microchannel plate/phosphor detector

ALPHA Collaboration et al. Rev Sci Instrum. 2009 Dec.

Abstract

A microchannel plate (MCP)/phosphor screen assembly has been used to destructively measure the radial profile of cold, confined antiprotons, electrons, and positrons in the ALPHA experiment, with the goal of using these trapped particles for antihydrogen creation and confinement. The response of the MCP to low energy (10-200 eV, <1 eV spread) antiproton extractions is compared to that of electrons and positrons.

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