| アイテムタイプ |
会議発表用資料 / Presentation(1) |
| 公開日 |
2023-01-04 |
| タイトル |
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|
タイトル |
An automatic 3D track analysis algorithm for Fe ion beam trajectory in fluorescent nuclear track detectors |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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|
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 |
Hu Jun
Kusumoto Tamon
Kodaira Satoshi
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| 抄録 |
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内容記述 |
The radiation environment in space is a complex mixture of particles of solar and galactic origin with a broad range of energies. Heavier nuclei comprise only part of the 1% of galactic cosmic rays (GCR); its radiation exposures present a significant biological effect and risk in manned space travel. GCR abundance is inversely proportional to the atomic number. Although iron (Fe) ions are one-tenth as abundant as carbon or oxygen, their contribution to the absorbed dose in tissue is substantial as this dose is proportional to the square of the particle charge. Therefore, it is essential to measure and identify the trajectories of Fe ions from the viewpoint of space radiation protection. Fluorescence nuclear track detectors (FNTDs) used in this study are passive solid-state detectors made of Al2O3:C, Mg crystals. The radiochromic transformation of lattice defects introduced during crystal growth provides a record of individual charged particle tracks that can be imaged using confocal laser scanning microscopy (CLSM). This method is being investigated as an alternative technology for recording the trajectories of all charged particles, which avoids chemical treatment processes as in conventional approaches, as all the processes involved in the measurement are related to only the optical system. Presently, the main obstacle to applying this technology is achieving an accurate translation of 3D image data analysis. In this research, an automatic analysis algorithm based on the Gaussian Mixture algorithm and k-means anomaly diagnosis was developed to reconstruct the trajectory of the Fe ion beam in FNTDs and measure the fluorescence intensity. |
| 会議概要（会議名, 開催地, 会期, 主催者等） |
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|
内容記述 |
International Youth Nuclear Congress IYNC2022 |
| 発表年月日 |
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|
日付 |
2022-12-01 |
| 関連サイト |
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|
識別子タイプ |
URI |
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関連識別子 |
https://www.iync.org/iync2022-japan/ |
