机载电子设备大气中子单粒子效应脉冲激光实验方法研究

大气中子诱发的单粒子效应（NSEE）危害机载电子设备的可靠性安全性，而其作用机理、传播机制与空间SEE有所不同，且缺乏系统级实验研究和具体分析技术。文章对比常规机载电子设备NSEE实验手段，鉴于激光技术具有可精确分辨SEE时空特性、能量连续可调、无放射性、无须抽真空、操作便捷、实验效率高、成本低等特点，探讨脉冲激光实验的阈值等效评估技术、器件敏感功能单元定位技术和故障注入技术；针对电源转换电路关键器件进行失效验证，快速获取了器件—电路—系统的故障特征，包括故障传递模式和阈值条件，为机载电子设备的系统级失效分析提供了有效输入，并期指导机载电子设备抗大气中子单粒子效应的研究、防护设计和验证评价。

Pulsed laser test method for atmospheric neutron induced single event effects on avionics

The atmospheric neutron-induced single particle effect (NSEE) affects the reliability and the safety of the airborne electronic equipment, and its action mechanism and the propagation mechanism are different from those of the space SEE, but there are very few systematic experimental researches and specific analysis technologies. Compared with the conventional NSEE experimental means for the airborne electronic equipment, the laser technology can achieve an accurate spatial-temporal resolution of the SEE, with a continuous adjustable energy, without radioactivity, without the need for vacuum, with the use of convenient operation, with high experimental efficiency, low cost and other features. The SEE quantitative evaluation technology, the device sensitive function unit location technology and the SEE laser fault injection technology in pulsed laser experiments are discussed. The failure validation of the key devices in the power converter circuit is conducted experimentally, to obtain the system fault characteristics at the device, circuit, and system levels, respectively, including the fault transfer mode and the threshold conditions. They provide an effective input for the system level failure analysis of airborne electronic equipment, to guide the research, the design, and the evaluation of the airborne electronic equipment against the atmospheric neutron single particle effect.