Test beam evaluation of silicon strip modules for ATLAS phase-II strip tracker upgrade

Test beam evaluation of silicon strip modules for ATLAS phase-II strip tracker upgrade
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用于 ATLAS 第二阶段带状跟踪器升级的硅带模块的测试光束评估

DOI:
10.1016/j.nima.2018.09.041
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发表时间:
2019
期刊:
Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子:
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通讯作者:
Blue A
Blue A
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文献类型:
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作者:
Blue A

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Abstract The planned High Luminosity Large Hadron Collider is being designed to maximise the physics potential of the LHC with 10 years of operation at instantaneous luminosities of 7. 5× 1 0 34 cm− 2 s− 1. A consequence of this increased luminosity is the expected radiation damage requiring the tracking detectors to withstand hadron fluence to over 1× 1 0 15 1 MeV neutron equivalent per cm 2 in the ATLAS Strips system. Fast readout electronics, deploying 130 nm CMOS front-end electronics are glued on top of a silicon sensor to make a module. The radiation hard n-in-p micro-strip sensors used have been developed by the ATLAS ITk Strip Sensor collaboration and produced by Hamamatsu Photonics. A series of tests were performed at the DESY-II test beam facility to investigate the detailed performance of a strip module with both 2.5 cm and 5 cm length strips before irradiation. The DURANTA telescope was used to obtain a pointing resolution of 2 μ m, with an additional pixel layer installed to improve timing resolution to∼ 25 ns. Results show that prior to irradiation a wide range of thresholds (0.5–2.0 fC) meet the requirements of a noise occupancy less than 1× 1 0− 3 and a hit efficiency greater than 99%.
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