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A study of the electromagnetic calorimeter trigger signal for the BELLE experiment
- Authors
- Ikeda, Hitomi; Cheon, Byung Gu
- Issue Date
- May-2007
- Publisher
- 한국물리학회
- Keywords
- BELLE; calorimeter trigger; electronic noise; peaking time
- Citation
- Journal of the Korean Physical Society, v.50, no.5, pp 1224 - 1228
- Pages
- 5
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- Journal of the Korean Physical Society
- Volume
- 50
- Number
- 5
- Start Page
- 1224
- End Page
- 1228
- ISSN
- 0374-4884
1976-8524
- Abstract
- We measured the peaking time and the noise level of the fast-shaping signal to be used for the electromagnetic calorimeter trigger of the BELLE experiment performed at the e(+)e(-) collider (KEKB). After this measurement, we chose a shaping time of 200 ns for the fast shaper. For this case, the electronics noise was estimated to be 6030 electron-hole pairs, which corresponds to a 2.0-MeV energy deposit in CsI(Tl) crystal. The corresponding peaking time is 760 ns, which is suitable for the requirement of BELLE global trigger timing latency.
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Related Researcher
- Cheon, Byung Gu
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)