抗辐射能力量化设计方法

抗辐射能力表现为系统技术性能对辐射损伤的敏感程度。抗辐射能力是设计、生产出来的。抗辐射量化设计能力是抗辐射加固技术发展水平的重要标志。根据QMU(性能阈值、裕量和不确定度)的思想,提出量化抗辐射设计,第一要优化系统总体设计,为辐射损伤敏感的技术性能合理地分配裕量;第二要量化系统工作的辐射环境及其不确定度,量化在实际工作的辐射环境中,辐射损伤引起的系统及其器件和结构的技术性能变化和不确定度,综合优化抗辐射措施,确保技术性能变化及其不确定度被有效控制在分配的裕量范围内,最后量化加固设计效果,预测系统抗辐射能力。

Quantitative method for designing systems with radiation damage considered

Abilities against radiation effects denote the sensitivity of systems to radiation damage, which can be achieved by design and manufacture, and represent the development level of radiation-hardening by design. In this paper, based on the QMU method, a flow of quantitative method for designing systems with radiation damage considered is raised. Firstly, the overall design of systems should be optimized, by dividing a system into different sub-systems, parts, and with different failure modes considered. Secondly, the radiation environment and the uncertainties have to be quantitatively verified. Then the corresponding radiation damage and uncertainties of the devices and sub-systems need to be evaluated, to make sure that the system operates safely. In the end, the overall ability of the system against radiation damage is predicted and verified.