Strip sensor performance in prototype modules built for ATLAS ITk
Strip sensor performance in prototype modules built for ATLAS ITk
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为 ATLAS ITk 构建的原型模块中的条带传感器性能
DOI：
10.1016/j.nima.2020.164402
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Helling C
中科院分区：
文献类型：
--
作者：
Helling C
TLAS 实验正在准备对其探测器进行升级，以用于高亮度大型强子对撞机 (HL-LHC) 操作。升级涉及安装新的全硅内部跟踪器（ITk）。在 ITk 准备工作中，使用原型桶传感器构建了 80 多个带状模块。它们通过每个通道的电气读数进行了测试。总体而言，观察到了出色的性能，与之前的 ASIC 级和传感器级测试一致。然而，吸取的教训包括对项目未来阶段很重要的两个现象。首先，由于传感器的湿度敏感性，需要在干燥环境中存储和测试模块。第二个是对 2 个模块的高噪声区域的观察。通过多种方式进一步测试高噪声区域，包括监测作为时间和偏置电压函数的性能。此外，还在受影响的通道上进行了直接传感器级测试。带间电阻和偏置电阻测试显示出较低的值，表明带间隔离暂时丧失。随后观察到噪声性能的恢复。我们介绍了测试细节，分析了带间隔离如何影响模块噪声，以及与传感器级质量控制测试的关系。
TLAS experiment is preparing an upgrade of its detector for High-Luminosity LHC (HL-LHC) operation. The upgrade involves installation of the new all-silicon Inner Tracker (ITk). In the context of the ITk preparations, more than 80 strip modules were built with prototype barrel sensors. They were tested with electrical readout on a per-channel basis. In general, an excellent performance was observed, consistent with previous ASIC-level and sensor-level tests. However, the lessons learned included two phenomena important for the future phases of the project. First was the need to store and test the modules in a dry environment due to humidity sensitivity of the sensors. The second was an observation of high noise regions for 2 modules. The high noise regions were tested further in several ways, including monitoring the performance as a function of time and bias voltage. Additionally, direct sensor-level tests were performed on the affected channels. The inter-strip resistance and bias resistance tests showed low values, indicating a temporary loss of the inter-strip isolation. A subsequent recovery of the noise performance was observed. We present the test details, an analysis of how the inter-strip isolation affects the module noise, and the relationship with sensor-level quality control tests.
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DOI：
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发表时间：
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期刊：
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子：
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作者：
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发表时间：
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影响因子：
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DOI：
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影响因子：
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DOI：
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发表时间：
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期刊：
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影响因子：
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影响因子：
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