Performance studies of MicroMegas for the ATLAS experiment
Performance studies of MicroMegas for the ATLAS experiment
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DOI：
10.1088/1748-0221/9/01/c01017
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发表时间：
2014-01
影响因子：
1.3
通讯作者：
M. Iodice
中科院分区：
文献类型：
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作者：
M. Iodice
截至 2012 年，在 CERN 的几次高能粒子束测试和最近（2013 年 6 月）DESY 的电子束测试中，MicroMegas (MM) 的性能得到了广泛的研究。测试的主要目标是证明 ATLAS Mu 子光谱仪的升级要求可以实现，其中 MicroMegas 将（连同小条带薄间隙室 - sTGC）安装在新小轮上用于前向 μ 子检测。然后选择 MM 布局和操作设置以满足 ATLAS 升级要求并触发时序约束。给出了垂直和倾斜轨道的效率、时间分辨率和空间分辨率的结果。此外，在 ATLAS 中，MM 将在高达 0.3 T 的非均匀磁场中运行。专用测试束测量已在 0 到 1 T 之间的可变磁场中进行。还报告了 MM 在磁场中的性能以及与模拟的比较。
The performance of MicroMegas (MM) has been extensively studied during several test beam campaigns with high energy particle beams at CERN up to the year 2012, and more recently (June 2013) with electron beams at DESY. Main objectives of the tests were to demonstrate that the requirements could be achieved for the upgrade of the ATLAS Muon Spectrometer, where the MicroMegas will be mounted (along with small-strip Thin Gap Chambers — sTGC) on the New Small Wheel for forward muon detection. The MM layout and operating settings have then been chosen to satisfy the ATLAS upgrade requirements and trigger timing constraints. Results for efficiencies, time resolution and spatial resolution for perpendicular and inclined tracks are presented. Moreover, in ATLAS the MM will operate in a non-uniform magnetic field up to 0.3 T. Dedicated test beam measurements have been carried out in a variable magnetic field between 0 and 1 T. The performance of MM in magnetic fields is also reported along with a comparison to simulations.