| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-11-25 |
| タイトル |
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タイトル |
Development of a radiation tolerant laser-induced breakdown spectroscopy system using a single crystal micro-chip laser for remote elemental analysis |
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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_6501 |
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資源タイプ |
journal article |
| 著者 |
Tamura Koji
Nakanishi Ryuzo
Oba Hironori
狩野 貴宏
柴田 卓弥
平等拓範
若井田育夫
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
For the development of the remote elemental analysis method in a radiation environment based on the laser-induced breakdown spectroscopy (LIBS), the radiation effects on the laser oscillation properties of the single crystal (SC) Nd:YAG microchip laser (MCL) were investigated and compared with those of ceramics Nd:YAG MCL. The laser oscillation properties were measured under gamma ray irradiation as a function of dose rate. The effects on the SC MCL properties were found to be very small compared to those on the ceramics, indicating minimal radiation effects on the LIBS signal when using SC MCL. Pulse energy and oscillating build-up time (BUT) were measured for cumulative dose exceeding 1400 kGy. The pulse energy remained stable, and the laser continued to oscillate under irradiation. The BUT also remained stable, demonstrating negligible optical loss accumulation that could affect laser properties even at the demonstrated cumulative dose. The results indicate that the effects of dose rate and cumulative dose on SC MCL laser properties were minimal. The SC MCL was then integrated into the LIBS system, and the gadolinium signal of composite oxides, simulating fuel debris, was successfully measured at the dose rate of 5 kGy/hr. These findings highlight the radiation tolerance of SC MCL as a laser medium for remote LIBS applications in harsh radiation environments. |
| 書誌情報 |
Journal of Nuclear Science and Technology
巻 61,
号 8,
p. 1109-1116,
発行日 2024-01
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| 出版者 |
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出版者 |
日本原子力学会 |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0022-3131 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1080/00223131.2023.2298485 |
