Performance study of a MAPS detector prototype based on test beam

Performance study of a MAPS detector prototype based on test beam
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基于测试光束的MAPS探测器样机性能研究

DOI:
10.1016/j.nima.2020.164810
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发表时间:
2021-01
期刊:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子:
--
通讯作者:
Zhang H. Y.
Zhang H. Y.
中科院分区:
其他
文献类型:
--
作者:
Qu C. Y.;Dong M. Y.;Baudot J.;Besson A.;Dong J.;Goffe M.;Hu-Guo C.;Jiang X. S.;Ju X. D.;Lu X. X.;Ma X. Y.;OuYang Q.;Tian X. C.;Wang M.;Winter M.;Wu L. H.;Wu Y.;Zhang H. Y.

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相似文献

基于 MAPS(单片有源像素传感器)的探测器原型正在开发中,用于升级 BESIII 内部跟踪器。正在开发具有低材料预算和高芯片位置精度的像素探测器梯。每个梯子由十个薄至 50 μm 的 MIMOSA28 芯片、一根柔性电缆和一个碳纤维支架组成。为了验证设计并量化梯子的空间分辨率、探测效率、梯子上相邻芯片之间的间隙以及梯子的材料预算方面的性能,在DESY的T24光束线上建立并测试了探测器原型系统。该系统由五层梯子、读出电子设备和数据采集器组成。测试结果表明,空间分辨率约为5μm,跟踪效率达到96%,其中约4%的效率损失很可能来自于读出和DAQ系统。相邻芯片的有源区域之间的平均间隙约为380μm。如果考虑芯片的不敏感部分,实际间隙和芯片定位精度优于10μm。一个梯子的材料预算为0.35±0.03 (sys.)% X 0,与预测值0.37% X 0 一致。这些测试结果验证了原型的良好性能。
A detector prototype based on MAPS (monolithic active pixel sensor) is under development for the upgrade of the BESIII inner tracker. Pixel detector ladders with low material budget and high chip position precision are being developed. Each ladder consists of ten MIMOSA28 chips thinned to 50 μ m, a flex cable and a carbon fibre support. In order to verify the design and quantify the performance of the ladders in terms of the spatial resolution, the detection efficiency, the gap between the neighbouring chips on the ladder and the material budget of the ladder, a detector prototype system was set up and tested at the T24 beamline at DESY. The system consists of five layers of ladders, readout electronics and data acquisition. The test results show that the spatial resolution is about 5 μ m, and a tracking efficiency of 96% is achieved, the loss of about 4% of the efficiency most likely coming from the readout and the DAQ system. The average gap between the active areas of the neighbouring chips is about 380 μ m. The actual gap and the chip location accuracy is better than 10 μ m if the insensitive part of the chip is taken into account. The material budget of one ladder is 0.35±0.03 (sys.)% X 0, which is consistent with the predicted value of 0.37% X 0. These test results validate a good performance of the prototype.
影响因子: 1.4
作者:
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DOI: --
发表时间: 2003-06
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影响因子: --
作者:
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发表时间: 2012-01
影响因子: 1.3
作者:
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DOI: 10.1016/j.nima.2018.06.032
发表时间: 2019-04
期刊: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子: --
作者:
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