4.6 Article Proceedings Paper

Investigation of sensitivity and threshold voltage shift of commercial MOSFETs in gamma irradiation

Journal

NUCLEAR SCIENCE AND TECHNIQUES
Volume 27, Issue 6, Pages -

Publisher

SPRINGER SINGAPORE PTE LTD
DOI: 10.1007/s41365-016-0149-8

Keywords

Dosimetry; Gamma radiation; Cs-137; Active and passive mode; P-channel MOSFET; Threshold voltage

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This article is about the absorbed-dose-dependent threshold voltage shift of the MOSFET transistors. Performance of the MOSFETs has been tested in different gate voltages. Sensitivity of the transistors for 662 keV gamma ray is studied in 1-5 Gy dose range. It was found that for transistors irradiated in biased mode, significant changes in the threshold voltage occurred, and the sensitivity to gamma rays increased with the bias voltage.

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