Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1828843 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2008 | 10 Pages |
Abstract
Experimental data from the pdâHe3η reaction close to threshold have been used to investigate time-dependent properties of the WASA pellet target and the stored beam of 892.8 MeV protons in the CELSIUS accelerator. The detection of 3He ions in solid-state detectors provides an excellent almost background free trigger for η production. Pellet interactions with the surrounding material and with the beam lead to evaporation of deuterium gas into the beam pipe. Approximately 30% of the registered η decay events are due to interactions in deuterium gas outside the pellets. Due to beam-target interaction the beam is transversely heated and appears to acquire a component of a slightly lower energy.
Related Topics
Physical Sciences and Engineering
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Instrumentation
Authors
Chr. Bargholtz, L. Gerén, A. KupÅÄ, I.V. Laukhin, K. Lindberg, R.R. Shafigullin, P.-E. Tegnér, I. Zartova, The CELSIUS-WASA Collaboration The CELSIUS-WASA Collaboration,