偏置电压下隧道磁电阻传感器的辐射容限

IF 7.5 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
Yingqian Xu, Peng Chen, Yizhan Wang, Jiafeng Feng, Jianing Lin, Jinghong Guo, Shuaipeng Wang, Hui Huang, Caihua Wan, Houfang Liu, Hongxiang Wei, Xingyao Zhang, Jing Sun, Qi Guo, Xiufeng Han
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引用次数: 0

摘要

隧道磁阻磁传感器(TMR-MS)因其优异的性能和成本效益而受到广泛关注,成为取代传统霍尔传感器的最有希望的候选器件。但是,在高辐射工作环境中,例如医疗和空间应用中,传感器必须具有一定程度的辐射耐受能力。针对TMR磁敏器件在复杂条件下(如电磁辐射)磁敏性能的稳定性问题,我们研究了0-5 Mrad(Si)剂量范围内的γ射线和x射线对灵敏度为418 mV/(V Oe)、噪声水平高达200 pT/√Hz (1 Hz)的TMR- ms性能的影响,同时在辐照工程中保持施加在传感器上的偏置电压以复制现实世界的条件。未观察到tmr - ms的关键性能指标因剂量效应而出现退化,证实了其在高辐射环境下运行的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Radiation tolerance of tunneling magnetoresistance sensors under bias voltage

The tunneling magnetoresistance magnetic sensor (TMR-MS) has garnered widespread attention for its exceptional performance and cost-effectiveness, positioning it as the most promising candidate to supplant traditional Hall sensors. However, in high radiation working environments, such as medical and space applications, sensors must exhibit a certain level of radiation tolerance. In response to the stability issue of magnetic sensing performance of TMR magnetic sensitive devices under complex conditions (such as electromagnetic radiation), we investigated the impact of γ-ray and X-ray in the dose range of 0-5 Mrad(Si) on the performance of TMR-MSs with a sensitivity of 418 mV/(V Oe) and noise level up to 200 pT/√Hz at 1 Hz, while maintaining a bias voltage applied to the sensor in irradiation engineering to replicate real-world conditions. No degradation in the key performance indicators of TMR-MSs due to dose effects was observed, confirming their potential for operation in high radiation environments.

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来源期刊
Science China Physics, Mechanics & Astronomy
Science China Physics, Mechanics & Astronomy PHYSICS, MULTIDISCIPLINARY-
CiteScore
10.30
自引率
6.20%
发文量
4047
审稿时长
3 months
期刊介绍: Science China Physics, Mechanics & Astronomy, an academic journal cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China, and published by Science China Press, is committed to publishing high-quality, original results in both basic and applied research. Science China Physics, Mechanics & Astronomy, is published in both print and electronic forms. It is indexed by Science Citation Index. Categories of articles: Reviews summarize representative results and achievements in a particular topic or an area, comment on the current state of research, and advise on the research directions. The author’s own opinion and related discussion is requested. Research papers report on important original results in all areas of physics, mechanics and astronomy. Brief reports present short reports in a timely manner of the latest important results.
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