A Versatile FG-MOSFET Inverter Design for X-Ray Radiation Dosimetry Applications

被引：1

作者：

Yadegari, Behzad ^{[1
]}

Roy, Langis ^{[2
]}

Ghaffar, Farhan A. ^{[3
]}

机构：

[1] Carleton Univ, Dept Elect, Ottawa, ON K1S 5B6, Canada

[2] Ontario Tech Univ, Fac Engn & Appl Sci, Oshawa, ON L1H 7K4, Canada

[3] Lakehead Univ, Dept Elect Engn, Ontario, ON L4M 3X9, Canada

来源：

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS | 2021年 / 15卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Blood; Inverters; Radiation effects; MOSFET; Biomedical measurement; Radio frequency; Dosimetry; X-ray; gamma ray; radiation dosimeter; sensor; blood irradiator; blood bag;

D O I：

10.1109/TBCAS.2021.3111784

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A novel inverter-based digital floating-gate MOSFET sensor design for commercial X-ray dosimetry is presented. The biomedical healthcare industry sterilizes blood products for storage purposes using Gamma and X-ray radiations. This requires an ultra-low-power dosimeter that ensures irradiation does not exceed the maximum allowable 50 Gy while providing the required minimum levels of 25 Gy. In this work, minimum-sized MOS transistor devices are employed in an inverter configuration, eliminating the continuous flow of current and reducing power consumption significantly. Maximum measured currents, which flow only during the transition period, are in the nA range, compared to continuous currents of conventional sensor designs in the mu A range. Final measured results show the viability of the proposed design for radiation dosimetry applications.

引用

页码：1008 / 1016

页数：9

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