Study of the readout configuration of the GAMMA-400 silicon tracker sensors
Study of the readout configuration of the GAMMA-400 silicon tracker sensors
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DOI：
10.1016/j.nima.2015.07.017
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发表时间：
2015-10
影响因子：
1.4
通讯作者：
A. Berra;V. Bonvicini;D. Lietti;M. Prest;E. Vallazza
中科院分区：
文献类型：
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作者：
A. Berra;V. Bonvicini;D. Lietti;M. Prest;E. Vallazza
伽马-400卫星是一个即将到来的国际空间使命，旨在探测高达3 TeV的广泛能量范围内的伽马和宇宙射线，具有出色的角度和能量分辨率。设计了一个10层Si W跟踪器，由80 μ m条间距的单面硅传感器组成，读出间距为240 μ m，传感器布置在4个塔中，每个塔的面积为50× 50 cm 2，总共超过150 k个通道。本文提出了一种分析的空间分辨率的读出配置，与不同的读出方法相比，无论是在读出间距和条带/植入物的宽度。这项研究是用两个专门开发的硅模块进行的，每个模块都分为具有不同特征的区域。在CERN PS-T9束线上用10 GeV的负粒子进行了测试。
The GAMMA-400 satellite is an upcoming international space mission designed to detect gamma and cosmic rays in a broad energy range up to 3 TeV, with an excellent angular and energy resolution. The present design foresees a 10 layers Si–W tracker formed by single sided silicon sensors with 80 μ m strip pitch, with a readout pitch of 240 μ m; the sensors are arranged in four towers, each one with an area of 50× 50 cm 2, for a total of more than 150k channels. This paper presents an analysis of the spatial resolution of the proposed readout configuration, compared with different readout approaches, both in terms of readout pitch and strip/implant widths. The study has been performed with two specially developed silicon modules, each one divided into zones with different characteristics. The tests have been performed on the CERN PS-T9 beamline using 10 GeV negative particles.