Long-term damage induced by hadrons in silicon detectors for uses at the LHC-accelerator and in space missions

Details Long-term damage induced by hadrons in silicon detectors for uses at the LHC-accelerator and in space missions Long-term damage induced by hadrons in silicon detectors for uses at the LHC-accelerator and in space missions

2002-09-09

arxiv.org/abs/hep-ph/0209086v2

Phys.Scripta 67 (2003) 388-394

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 4 figures, submitted to Physica Scripta, place of the last figure changed

Scientific paper

10.1238/Physica.Regular.067a0038

In the present paper, the phenomenological model developed by the authors in previous papers has been used to evaluate the degradation induced by hadron irradiation at the future accelerator facilities or by cosmic protons in high resistivity silicon detectors. The damage has been analysed at the microscopic (defects production and their evolution toward equilibrium) and at the macroscopic level (changes in the leakage current of the p-n junction). The rates of production of primary defects, as well as their evolution toward equilibrium have been evaluated considering explicitly the type of the projectile particle and its energy. Vacancy-interstitial annihilation, interstitial migration to sink, complex (VP, VO, CiOi, CiCs) and divacancy formation are taken into account for different initial silicon material. The influence of these defects on the leakage detector current has been calculated in the frame of the Schokley-Read-Hall model.

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