Timing optimization of thin gap chambers for the use in the ATLAS muon endcap trigger
Timing optimization of thin gap chambers for the use in the ATLAS muon endcap trigger
复制标题
用于 ATLAS μ 子端盖触发器的薄间隙室的定时优化
DOI：
10.1016/0168-9002(95)00532-3
复制
发表时间：
1995
影响因子：
1.4
通讯作者：
C. Yokoyama
中科院分区：
文献类型：
--
作者：
Y. Arai;M. Asai;E. Barberio;T. Emura;J. Goldberg;K. Homma;M. Ikeno;M. Imori;K. Ishii;H. Ishiwaki;T. Kawamoto;T. Kobayashi;D. Lellouch;L. Levinson;N. Lupu;G. Mikenberg;M. Miyake;K. Nagai;T. Nagano;I. Nakamura;M. Nomachi;M. Nozaki;S. Odaka;T. Ohska;O. Sasaki;H. Shirasu;H. Takeda;T. Takeshita;S. Tanaka;C. Yokoyama
在ATLAS实验的端盖区域中的第一级μ子触发需要使用具有良好定义的高分割和良好时间分辨率的探测器，以科普大速度下的高背景。由于其阳极读出能力，已经提出了在高增益模式下操作的薄间隙室用于该任务，该阳极读出能力允许下至两个线分离的良好限定的分段，结合其良好的定时特性。在不同的工作条件下，使用大的（1.22 × 0.74 m2）探测器，这样的设备的定时应用进行了优化。一个时间分辨率优于3.7纳秒已经实现了一个单一的层，显示在高达170 kHz/cm 2的背景速率下没有恶化。
The first level muon trigger in the endcap region of the ATLAS experiment requires the use of detectors with well defined high segmentation and good time resolution, to cope with high backgrounds at large rapidity. Thin gap chambers operating in a high gain mode have been proposed for this task due to its anode readout capability, that permits a well defined segmentation down to the two wire separation, combined with its good timing properties. An optimization of such a device for timing application has been performed using large (1.22 × 0.74 m2) detectors under different operating conditions. A time resolution better than 3.7 ns has been achieved for a single layer, showing no deterioration under background rates at as high as 170 kHz/cm2.