Development of a GEM-based High Resolution TPC for the ILC
Development of a GEM-based High Resolution TPC for the ILC
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DOI：
10.1016/j.nima.2006.10.396
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发表时间：
2007-04
影响因子：
1.4
通讯作者：
M. Killenberg;S. Lotze;J. Mnich;A. Münnich;S. Roth;M. Weber
中科院分区：
文献类型：
--
作者：
M. Killenberg;S. Lotze;J. Mnich;A. Münnich;S. Roth;M. Weber
ILC 的物理目标和预期环境需要开发具有前所未有的跟踪能力的探测器。基于微图案气体探测器的具有气体放大功能的高分辨率 TPC 是 ILC 探测器主跟踪器的有希望的候选者。用于气体放大的气体电子倍增器（GEM [F. Sauli, Nucl. Instr. and Meth. A 386 (1997) 531]）的 TPC 概念的开发已经取得了重大进展。使用 GEM 结构的特殊设置可以显着减少离子反向漂移。为了进一步研究基于 GEM 的 TPC 的空间分辨率，构建了一个具有低质量场笼的原型。它是在高分辨率硅示波器内操作的。此外，还花费了大量精力来开发 TPC 特性（例如漂移、扩散和气体放大）的精确数值模拟。
The physics goals and the expected environment at the ILC requires the development of a detector with unprecedented tracking capabilities. A high-resolution TPC with gas amplification based on micro-pattern gas detectors is a promising candidate for the main tracker at the ILC detector. Significant progress has been achieved in the development of a TPC concept with Gas Electron Multipliers (GEM [F. Sauli, Nucl. Instr. and Meth. A 386 (1997) 531]) used for gas amplification. Significant ion backdrift reduction was obtained using special settings of the GEM structures. To further study the spatial resolution of a GEM-based TPC, a prototype with low-mass fieldcages was constructed. It was operated within a high-resolution silicon hodoscope. Additionally, extensive effort is spent on the development of an accurate numerical simulation of the TPC properties, such as drift, diffusion and gas amplification.