医疗卫生装备2025，Vol.46Issue(11)：18-23,6.DOI:10.19745/j.1003-8868.2025195
伤病员转运机器人控制芯片的抗辐射研究
Radiation hardening study for control chips in casualty transport robots
摘要
Abstract
Objective To explore the performance of gallium nitride(GaN)-based digital circuit chips applied in nuclear radiation environments and investigate the feasibility of their use in control chips for robots transporting injured personnel.Methods First,a GaN-based NAND gate digital circuit chip was fabricated.Second,both the GaN-based digital chip and the SN74AHCT1G00 silicon-based digital chip were irradiated with 60Co gamma-ray.The irradiation doses for the GaN-based digital chip were 1 Mrad(Si)and 2 Mrad(Si),while the irradiation dose for the SN74AHCT1G00 silicon-based digital chip was 1 Mrad(Si).Finally,the post-irradiation electrical performance of the two chips was measured using a Keithley 4200A-SCS semiconductor characterization system.Results Under 60Co gamma-ray irradiation doses of 1 Mrad(Si)and 2 Mrad(Si),the response delay of the GaN-based digital circuit chip was only on the order of 0.1 μs.In contrast,the response rate of the SN74AHCT1G00 silicon-based digital circuit chip significantly degraded under 60Co gamma-ray irradiation dose of 1 Mrad(Si),rendering it unable to perform the NAND gate logic function.Conclusion GaN-based digital circuit chips exhibit high radiation resistance in 60Co gamma-ray irradiation environments,with no significant performance degradation.Compared with silicon-based digital circuit chips,they demonstrate considerable advantages and can preliminarily meet the requirements for control chips of robots transporting injured personnel in nuclear radiation environments.关键词
氮化镓/核辐射/机器人/伤病员转运/控制芯片Key words
gallium nitride/nuclear radiation/robot/casualty transport/control chip分类
基础医学引用本文复制引用
陈建军,郭放,郑振东..伤病员转运机器人控制芯片的抗辐射研究[J].医疗卫生装备,2025,46(11):18-23,6.基金项目
军队科研项目 （）
