ZHANG Yongjie, YU Yuhong, ZHOU Yong, et al. Development of a test bench for plastic scintillator counters for the DAMPE[J]. Nuclear techniques, 2015, 38(8): 080403
DOI:
ZHANG Yongjie, YU Yuhong, ZHOU Yong, et al. Development of a test bench for plastic scintillator counters for the DAMPE[J]. Nuclear techniques, 2015, 38(8): 080403 DOI: 10.11889/j.0253-3219.2015.hjs.38.080403.
Development of a test bench for plastic scintillator counters for the DAMPE
is one of the most important parts in the payload of Dark Matter Particles Explorer (DAMPE) which is mainly used for the study of dark matter. As an anti-coincidence detector
and a charged-particle identification detector
the PSD is composed by 82 plastic scintillator counters. Purpose: Due to the difference among a batch of scintillator counters
it is necessary to develop a test bench with high test efficiency and also to obtain their performance
such as uniformity of light output
light attenuation length
peak of Minimum Ionizing Particle (MIPs) and detection efficiency simultaneously. Methods: A high-efficiency test bench
including electronic modules
data acquisition
analysis system
etc
has been constructed to study the characteristics of 24 scintillator counters with cosmic rays. Individual trigger module with dimensions of 34 cm×2 cm×1 cm has been set up at different points of ±34 cm
±17 cm and 0 cm. With this test bench
the light attenuation length and other main parameters of 20 counters have been investigated. Results and Conclusion: Through the high-efficiency test bench
data of 20 scintillator counters could be obtained simultaneously. After analysis of 185 counters’ data
we can select 82 counters which fulfill all technology parameters provided by DAMPE and use in PSD. Abstract