SOFTWARE TRIGGER FOR THE TOPAZ DETECTOR AT TRISTAN

被引：14
|
作者：
TSUKAMOTO, T
YAMAUCHI, M
ENOMOTO, R
机构：
[1] KEK, National Laboratory for High Energy Physics, Tsukuba, Ibaraki, 305
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 297卷 / 1-2期
关键词：
D O I：
10.1016/0168-9002(90)91360-N
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new software trigger system was developed and installed at the TOPAZ detector to the trigger system for the TRISTAN e+e- collider to take data efficiently in the scheduled high luminosity experiment. This software trigger requires two or more charged tracks originated at the interaction point by examining the timing of signals from the time projection chamber. To execute the vertex finding very quickly, four microprocessors are used in parallel. By this new trigger the rate of the track trigger was reduced down to 30-40% with very small inefficiency. The additional dead time by this trigger is negligible.
引用
收藏
页码：148 / 152
页数：5
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