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Characteristics of high-and low-dose-rate radiation damage for bipolar voltage comparator
- NUCLEAR TECHNIQUES Vol. 41, Issue 9, Article number: 090202(2018)
- 作者机构：
1.中国科学院新疆理化技术研究所 中国科学院特殊环境功能材料与器件重点实验室 乌鲁木齐 830011
2.新疆电子信息材料与器件重点实验室 乌鲁木齐 830011
3.中国科学院大学 北京 100049
- 作者简介：
- 基金信息：National Natural Science Foundation of China;the West Light Foundation of Chinese Academy of Sciences
DOI：10.11889/j.0253-3219.2018.hjs.41.090202
CLC： TL99Received：03 April 2017，
Revised：10 December 2017，
Published：2018-09
- 稿件说明：
移动端阅览
Jincheng JIA, Xiaolong LI, Wu LU, et al. Characteristics of high-and low-dose-rate radiation damage for bipolar voltage comparator[J]. Nuclear techniques, 2018, 41(9): 090202
Jincheng JIA, Xiaolong LI, Wu LU, et al. Characteristics of high-and low-dose-rate radiation damage for bipolar voltage comparator[J]. Nuclear techniques, 2018, 41(9): 090202 DOI： 10.11889/j.0253-3219.2018.hjs.41.090202.
摘要
为研究双极电路在空间辐射环境下的损伤规律，对典型双极电压比较器进行不同偏置条件下
60
Co-γ高低剂量率辐照试验。结果表明：电压比较器的输入偏置电流、开环增益和输出低电平等参数在电离辐射环境下均发生不同程度的退化，且都表现出低剂量率辐射损伤增强效应。通过进一步分析比较器敏感参数的变化规律以及电路级的具体退化模式发现，偏置条件对于电压比较器的辐照损伤特性有很大影响。
Abstract
Background
2
Bipolar junction transistors (BJTs) in spacecraft may be damaged by ionizing radiation.
Purpose
2
This study aims to investigate the dose rate effect and the radiation response of the voltage comparator.
Methods
2
Typical bipolar voltage comparators LM339 of the same batch produced by Texas Instruments (TI) are irradiated by
60
Co-γ at high-and low-dose-rate under different bias conditions. Some parameters of the voltage comparator subjected to ionization radiation
such as input bias current
open loop gain and low-level output voltage
are observed. The changing law of sensitive parameters of voltage comparator and the concrete degradation mode in the circuit level are analyzed.
Results
2
The degradation in performance of voltage comparator corresponding to low rate dose irradiation exhibits more dramatically enhancement
i.e. enhanced low dose rate sensitivity.
Conclusions
2
The radiation response of the voltage comparator is severely affected by the bias conditions.
关键词
Keywords
references
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