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arXiv physics/0611185physics.ins-dethep-ph
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硅中辐射过程与高能物理实验探测器长时间退化的相关性

Correlation between radiation processes in silicon and long-time degradation of detectors for high energy physics experiments

Sorina Lazanu, Ionel Lazanu

摘要:

在这方面的贡献,基本相互作用过程中引起的辐射在硅和可观察到的影响,限制了在高能物理实验中使用硅探测器之间的相关性进行了研究的框架内的唯象模型,其中包括:产生的主要缺陷在照射开始从硅中的基本相互作用,缺陷的动力学,在pn结探测器水平的影响。由于照射粒子(π介子,质子,中子),他们的通量,硅中的阈值能量的各向异性,杂质浓度和电阻率的起始材料的影响进行了研究作为时间,能量密度和温度依赖性的检测器特性。预测了在LHC和SLHC复杂强子背景场中探测器电参数的预期退化。

英文摘要:

In this contribution, the correlation between fundamental interaction processes induced by radiation in silicon and observable effects which limit the use of silicon detectors in high energy physics experiments is investigated in the frame of a phenomenological model which includes: generation of primary defects at irradiation starting from elementary interactions in silicon; kinetics of defects, effects at the p-n junction detector level. The effects due to irradiating particles (pions, protons, neutrons), to their flux, to the anisotropy of the threshold energy in silicon, to the impurity concentrations and resistivity of the starting material are investigated as time, fluence and temperature dependences of detector characteristics. The expected degradation of the electrical parameters of detectors in the complex hadron background fields at LHC & SLHC are predicted.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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