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On-site space radiation dosimeter for deep space missions
https://repo.qst.go.jp/records/2002212
https://repo.qst.go.jp/records/2002212a698a753-964a-4d29-93d9-83f58452f224
| アイテムタイプ | 会議発表用資料 / Presentation(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2025-06-20 | |||||||||
| タイトル | ||||||||||
| タイトル | On-site space radiation dosimeter for deep space missions | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6670 | |||||||||
| 資源タイプ | conference poster | |||||||||
| 著者 |
Kodaira Satoshi
× Kodaira Satoshi
× Naito Masayuki
|
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| 抄録 | ||||||||||
| 内容記述 | The field of manned activities in space is currently expanding from the International Space Station (ISS) to the Moon, and international efforts in deep space exploration are intensifying. Radiation protection is a pressing issue for sustained manned activities in deep space. In contrast to near-Earth environments, deep space is characterized by a harsh radiation environment where space radiation directly penetrates. For instance, it is estimated that on the lunar surface, the radiation dose could exceed 200 times that on Earth (approximately 420 mSv per year). Among the challenges that need to be addressed, this study is advancing the development of technology that enables on-site assessment of individual radiation doses.To evaluate radiation doses in deep space, it is essential to measure the Linear Energy Transfer (LET) of incident particles. Currently operational passive dosimeters, composed of plastic nuclear track detectors and luminescence detectors on the ISS, require special processing, making it necessary to retrieve them on Earth, rendering them unsuitable for deep space exploration. Therefore, as a new dosimetry technology to replace conventional passive dosimeters, this research aims to practicalize a reliable on-site dose assessment technique using silver-activated phosphate glass chips capable of detecting incident particles as fluorescent tracks and identifying their LET.The study explores a method to simultaneously read the fluorescent tracks of high-LET particles and the total fluorescence derived from low-LET particles within the same glass chip. The idea and its development status will be presented. | |||||||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||||||
| 内容記述 | 21th International Conference on Solid State Dosimetry | |||||||||
| 発表年月日 | ||||||||||
| 日付 | 2025-06-09 | |||||||||
