用于mva月球着陆器任务的低成本剂量计模块

Pub Date : 2023-08-09 DOI:10.15407/knit2023.03.119
D. ELFIKY, S. AZIZ, N. HESHAM, A. AYMAN
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引用次数: 0

摘要

了解月球辐射环境对未来的太空探索任务至关重要,因为缺乏大气和磁屏蔽,使得不同能量和来源的带电粒子能够穿透月球表面。在空间辐射环境中,通常的做法是使用辐射剂量计测量吸收剂量和剂量率。在这项研究中,有效载荷将包括一个能够测量着陆点表面辐射强度的辐射剂量计。为MVA任务在着陆区域表面实时测量伽马吸收剂量和剂量率的辐射读出系统的设计概念和实施是基于商用的光电二极管传感器,将用作伽马辐射传感器。该模块的活性水平较低(Cs137、Co60和Sr90)。光电二极管模块的性能已通过吉格尔计数器得到验证。由于其低成本和高灵敏度,这种辐射模块显然是有利的。
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LOW COST DOSIMETER MODULE FOR MVA LUNAR LANDER MISSION
Understanding the lunar radiation environment is crucial for future space exploration missions, as the lack of atmospheric and magnetic shielding allows charged particles of varying energies and origins to penetrate the surface of the moon. In space radiation environments, it is common practice to use radiation dosimeters to measure absorbed dose and dose rate. In this study, the payload will include a radiation dosimeter capable of measuring the radiation intensity at the landing site’s surface. The design concept and implementation of a radiation readout system for the real-time measurement of gamma absorbed dose and dose rate at the surface of the landing area for the MVA mission are based on a photodiode sensor that is commercially available and will be used as a gamma radiation sensor. The module experienced low levels of activity (Cs137, Co60, and Sr90). The performance of the photodiode-based module has been demonstrated by the Giger counter. Due to its low cost and high sensitivity, this radiation module would be clearly advantageous.
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