Sato T, Kataoka R, Yasuda H, Yashiro S, Kuwabara T, Shiota D, Kubo Y
Japan Atomic Energy Agency, Shirakata-Shirane 2-4, Tokai, Ibaraki 319-1195, Japan
National Institute of Polar Research, Midoricho 10-3, Tachikawa, Tokyo 190-8518, Japan Tokyo Institute of Technology, Ookayama 2-12-1, Meguro, Tokyo 152-8550, Japan.
Radiat Prot Dosimetry. 2014 Oct;161(1-4):274-8. doi: 10.1093/rpd/nct332. Epub 2013 Dec 15.
WASAVIES, a warning system for aviation exposure to solar energetic particles (SEPs), is under development by collaboration between several institutes in Japan and the USA. It is designed to deterministically forecast the SEP fluxes incident on the atmosphere within 6 h after flare onset using the latest space weather research. To immediately estimate the aircrew doses from the obtained SEP fluxes, the response functions of the particle fluxes generated by the incidence of monoenergetic protons into the atmosphere were developed by performing air shower simulations using the Particle and Heavy Ion Transport code system. The accuracy of the simulation was well verified by calculating the increase count rates of a neutron monitor during a ground-level enhancement, combining the response function with the SEP fluxes measured by the PAMELA spectrometer. The response function will be implemented in WASAVIES and used to protect aircrews from additional SEP exposure.
WASAVIES是一种用于航空领域应对太阳高能粒子（SEP）辐射的预警系统，由日本和美国的多个机构合作开发。它旨在利用最新的空间天气研究成果，确定性地预测耀斑爆发后6小时内入射到大气层的SEP通量。为了根据获得的SEP通量立即估算机组人员的剂量，通过使用粒子与重离子传输代码系统进行空气簇射模拟，开发了单能质子入射到大气层所产生的粒子通量的响应函数。通过计算地面增强期间中子监测器的计数率增加量，并将响应函数与PAMELA光谱仪测量的SEP通量相结合，很好地验证了模拟的准确性。该响应函数将在WASAVIES中实现，并用于保护机组人员免受额外的SEP辐射。
