Performance of a new LMRPC prototype for the STAR MTD system

Performance of a new LMRPC prototype for the STAR MTD system
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STAR MTD 系统的新型 LMRPC 原型的性能

DOI:
10.1016/j.nima.2011.03.012
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发表时间:
2011-06
期刊:
Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment
影响因子:
--
通讯作者:
陈黄山
陈黄山
中科院分区:
其他
文献类型:
--
作者:
王义;王义;李元景;李元景;陈黄山;陈黄山

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研制了一种用于RHIC恒星Muon望远镜探测器(MTD)的长条多间隙电阻板室(LMRPC)的新原型。该样机的有效面积为52×90cm2,由6个250μm宽的间隙组成。每个探测器有12条,两端读出,每条宽3.8厘米,长90厘米,间隔0.6厘米。在宇宙线测试中,94%氟利昂、5%异丁烷和1%SF6混合气体的效率大于95%,时间分辨率为∼75ps。在不同的条带上表现出很好的一致性。该模块还在北京IHEP的质子束中进行了测试。对于90%氟利昂、5%异丁烷和5%SF6混合气体,效率接近100%,最佳时间分辨率为55ps。还执行了沿条带方向和横跨条带方向的触发扫描。
A new prototype of a Long-Strip Multi-Gap Resistive Plate Chamber (LMRPC) for the STAR Muon Telescope Detector (MTD) at RHIC has been developed. This prototype has an active area of 52×90cm2and consists of six 250μm wide gaps. Each detector has 12 strips, read-out at both ends, which are each 3.8cm wide and 90cm long with 0.6cm intervals. In cosmic-ray tests, the efficiency was larger than 95% and the time resolution was ∼75ps for the 94% Freon, 5% iso-butane, and 1% SF6gas mixture. There was good uniformity in the performance across the different strips. The module was also tested in a proton beam at IHEP in Beijing. The efficiency was close to 100% and the best timing resolution achieved was 55ps for the 90% Freon, 5% iso-butane, and 5% SF6gas mixture. Trigger scans along and across the strip direction were also performed.
影响因子: 1.4
作者:
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发表时间: 2009-02
期刊: Chinese Physics C
影响因子: 3.6
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