The Electromagnetic Calorimeter trigger system for the AMS-02 experiment

被引：6

作者：

Cadoux, F. ^{[1
]}

Cervelli, F. ^{[2
]}

Coignet, G. ^{[1
]}

Cougolat, G. ^{[1
]}

Di Falco, S. ^{[2
]}

Goy, C. ^{[1
]}

Hermel, R. ^{[1
]}

Kossakowski, R. ^{[1
]}

Incagli, M. ^{[2
]}

Li, Z. H. ^{[3
]}

Lu, Y. S. ^{[3
]}

Magazzu, C. ^{[2
]}

Pedreschi, E. ^{[2
]}

Piendibene, M. ^{[2
]}

Pilo, F. ^{[2
]}

Pochon, J. ^{[1
]}

Rosier-Lees, S. ^{[1
]}

Spinella, Franco ^{[2
]}

Vannini, C. ^{[2
]}

Vialle, J. P. ^{[1
]}

机构：

[1] Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France

[2] INFN Pisa, I-56127 Pisa, Italy

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2008年 / 55卷 / 02期

关键词：

DAQ; electronics; trigger;

D O I：

10.1109/TNS.2008.918517

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

AMS-02 is an astroparticle experiment designed for a very precise measurement of the primary cosmic rays spectrum. The experiment will operate on board 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 AMS-02 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 must 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 comprises an analog section, comparing the photomultiplier signal with a given threshold, and a digital section applying the trigger selection algorithm.

引用

页码：817 / 821

页数：5

共 11 条

[11] Egret observations of the extragalactic gamma-ray emission
Sreekumar, P
Bertsch, DL
Dingus, BL
Esposito, JA
Fichtel, CE
Hartman, RC
Hunter, SD
Kanbach, G
Kniffen, DA
Lin, YC
Mayer-Hasselwander, HA
Michelson, PF
von Montigny, C
Mucke, A
Mukherjee, R
Nolan, PL
Pohl, M
Reimer, O
Schneid, E
Stacy, JG
Stecker, FW
Thompson, DJ
Willis, TD
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