The Electromagnetic Calorimeter trigger system for the AMS-2 experiment

被引:0
|
作者
Adloff, C. [1 ]
Cadoux, F. [1 ]
Chen, G. M. [1 ]
Chen, H. S. [1 ]
Cervelli, F. [1 ]
Coignet, G. [1 ]
Cougolat, G. [1 ]
Di Falco, St. [1 ]
Caleotti, St. [1 ]
Goy, C. [1 ]
Hermel, R. [1 ]
Kossakowski, R. [1 ]
Incagli, M. [1 ]
Li, Z. H. [1 ]
Lu, Y. S. [1 ]
Magazzu, C. [1 ]
Pedreschi, E. [1 ]
Piendibene, M. [1 ]
Pilo, F. [1 ]
Pochon, J. [1 ]
Rosier-Lees, S. [1 ]
Spinella, F. [1 ]
Tang, X. W. [1 ]
Vannini, C. [1 ]
Vialle, J. P. [1 ]
Yang, C. G. [1 ]
Yang, M. [1 ]
Yu, Z. Q. [1 ]
Zhuang, H. L. [1 ]
机构
[1] LAPP, Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France
来源
2005 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD, VOLS 1-5 | 2005年
关键词
D O I
暂无
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
AMS-02 is an astroparticle experiment designed for a very precise measurement of primary cosmic rays spectrum. The experiment will operate on board of the ISS at a 400 km altitude for a period of about 3 years. The main scientific goals of the experiment are the search for antimatter, for dark matter and the study of gamma rays. In AXIS the Electromagnetic Calorimeter plays a key role for its high capability to measure e(+), e(-) and gamma spectra and to suppress the background generated by p and He nuclei. To directly detect photons the calorimeter is requested to provide a stand alone trigger. The proposed trigger, presented in this article, will have the capability to detect photons with energy above 4 GeV with an efficiency of about 100%. The hardware implementation foresees an analog section, comparing the photomultiplier signal with a given threshold, and a digital section applying the trigger selection algorithm.
引用
收藏
页码:274 / 277
页数:4
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