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arXiv 2409.02001physics.space-ph
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火星表面人类有效剂量当量估算

Effective dose equivalent estimation for humans on Mars

Miguel Ralha, Pedro Teles, Nuno Santos, Daniel Matthiä, Thomas Berger, Marta Cortesão

AI总结:

本文利用MCNP6构建火星辐射环境模型,并结合ICRP体素人体模型和好奇号RAD实测数据,估算了火星表面任务中的器官剂量与有效剂量当量,评估了长期驻留的辐射可行性。

摘要:

宇宙辐射暴露是太空探索中的一个主要问题。在火星表面,存在一个复杂的辐射场,由持续涌入的银河宇宙辐射及其与火星大气和风化层相互作用产生的次级粒子共同构成。本研究根据第一届火星空间辐射建模研讨会的指导方针,使用MCNP6开发了一个火星环境模型。通过将粒子能谱和剂量率结果与其他模型结果以及好奇号火星车上搭载的辐射评估探测器(RAD)在2015年11月15日至2016年1月15日期间获取的测量数据进行比较,检验了该模型的准确性。随后,将国际放射防护委员会(ICRP)的体素型计算人体模型植入代码中,并评估了同一时期的器官剂量和有效剂量当量。本研究在此假设条件下,探讨了在火星表面执行长期任务在辐射防护方面的可行性。

英文摘要:

Exposure to cosmic radiation is a major concern in space exploration. On the Martian surface, a complex radiation field is present, formed by a constant influx of galactic cosmic radiation and the secondary particles produced by their interaction with the planet's atmosphere and regolith. In this work, a Martian environment model was developed using MCNP6 following the guidelines of the 1st Mars Space Radiation Modeling Workshop. The accuracy of the model was tested by comparing particle spectra and dose rate results with other model results and measurements from the Radiation Assessment Detector (RAD) onboard the Curiosity rover, taken between November 15, 2015, and January 15, 2016. The ICRP's voxel-type computational phantoms were then implemented into the code. Organ dose and effective dose equivalent were assessed for the same time period. The viability of a mission on the surface of Mars for extended periods of time under the assumed conditions was here investigated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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