Commissioning of the ATLAS Level-1 central trigger system

被引：2
|
作者：
Sherman, Daniel [1 ]
机构：
[1] CERN, CH-1211 Geneva 23, Switzerland
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2010年 / 623卷 / 01期
关键词：
Trigger systems; Large hadron collider; Cosmic ray commissioning;
D O I：
10.1016/j.nima.2010.03.067
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The ATLAS Level-1 central trigger is a critical part of ATLAS operation. It receives the 40 MHz bunch clock from the LHC and distributes it to all sub-detectors. It initiates their read-out by forming the Level-1 Accept decision, which is based on information from the calorimeter and muon trigger processors and a variety of additional trigger inputs from detectors in the forward region. It also provides trigger summary information to the data acquisition system and the Level-2 trigger system. In this paper, we present the completion of the installed central trigger system, its performance during cosmic-ray data taking and the experience gained with triggering on the first LHC beams. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：552 / 554
页数：3
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