| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-09-25 |
| タイトル |
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|
タイトル |
Energy resolution improvement in simplified alpha spectroscopy for radionuclidic purity tests on 225Ac production floors |
|
言語 |
en |
| 言語 |
|
|
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 |
|
資源タイプ |
journal article |
| 著者 |
Mihei Yuma
Tani Kotaro
Ichinose Jun
Nagatsu Kotaro
Fukushi Masahiro
Kurihara Osamu
Inoue Kazumasa
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| 抄録 |
|
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内容記述タイプ |
Abstract |
|
内容記述 |
This study investigated the feasibility of a simplified method of alpha spectroscopy for radionuclidic purity tests at 225Ac production sites that eliminates the need for a vacuum chamber. The impact of enhancing the energy resolution using a collimator was evaluated through radiation transport simulations. The results showed that a full width at tenth maximum (FWTM) of less than 300 keV was achieved for alpha particles from 241Am, for which the main energy peak was 5.5 MeV. Experimental validation using an electrodeposition source containing 237Np, 241Am, and 244Cm confirmed an FWTM of 272 keV for both 241Am and 244Cm. These two peaks, with a difference of approximately 300 keV, were effectively separated. In response to the growing demand for targeted radioisotope therapy, this simplified alpha spectroscopy method offers the potential to detect 226Ra mixed with 225Ac generated by accelerators, given the alpha energy difference of about 700 keV. |
| 書誌情報 |
Radiation Protection Dosimetry
巻 200,
号 15,
p. 1443-1449,
発行日 2024-09
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| 出版者 |
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|
出版者 |
Oxford University Press |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1093 / rpd / ncae185 |
