Characterization of Radiation Exposure at Aviation Flight Altitudes Using the Nowcast of Aerospace Ionizing Radiation System (NAIRAS)

IF 3.7 2区 地球科学 Space Weather Pub Date : 2024-04-01 DOI:10.1029/2024sw003869
Daniel B. Phoenix, Christopher J. Mertens, Guillaume Gronoff, Kent Tobiska
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Abstract

Exposure to ionizing radiation from galactic cosmic rays (GCR) and solar energetic particles (SEP) at aircraft flight altitudes can have an adverse effect on human health. Although airline crews are classified as radiation workers by the International Commission on Radiological Protection (ICRP), in most countries, their level of exposure is unquantified and undocumented throughout the duration of their career. As such, there is a need to assess pilot ionizing radiation exposure. The Nowcast of Aerospace Ionizing RAdiation System (NAIRAS), a real‐time, global, physics‐based model is used to assess such exposure. The Automated Radiation Measurements for Aerospace Safety (ARMAS) measurement data set consists of high latitude, high altitude, and long‐duration aircraft flights between 2013 and 2023. Here, we characterize radiation exposure at aviation flight altitudes using the NAIRAS model and compare with 45 flight trajectories from the recent ARMAS flight measurement inventory.
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利用航空航天电离辐射预报系统(NAIRAS)确定航空飞行高度的辐射暴露特征
在飞机飞行高度接触银河宇宙射线(GCR)和太阳高能粒子(SEP)产生的电离辐射会对人体健康产生不利影响。尽管国际辐射防护委员会(ICRP)将航空机组人员归类为辐射工作人员,但在大多数国家,他们在整个职业生涯中的辐射水平是无法量化和记录的。因此,有必要对飞行员电离辐照进行评估。Nowcast of Aerospace Ionizing RAdiation System(NAIRAS)是一个基于物理学的实时全球模型,用于评估此类辐照。航空航天安全自动辐射测量(ARMAS)测量数据集包括 2013 年至 2023 年期间的高纬度、高海拔和长时间飞机飞行。在此,我们使用 NAIRAS 模型描述了航空飞行高度的辐照特征,并与最近 ARMAS 飞行测量清单中的 45 个飞行轨迹进行了比较。
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