| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-02-13 |
| タイトル |
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タイトル |
Energy-dispersive X-ray fluorescence analysis of uranium-contaminated stainless-steel surfaces by eliminating the iron sum peak using a titanium filter |
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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 |
Yanagisawa Ukyou
Wang Hui
Matsuyama Tsugufumi
Sakai Yasuhiro
Yoshii Hiroshi
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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 |
During energy-dispersive X-ray fluorescence (EDXRF) measurements of stainless steel, sum peaks originating from iron are frequently observed. Among these, the Fe Kα + Kβ sum peak overlaps with the U Lα peak, complicating the analysis of uranium contamination on stainless-steel surfaces. While secondary X-ray filters can mitigate such sum peaks, integrating them into commercially available portable EDXRF analyzers poses technical challenges. This study presents a straightforward method for eliminating iron sum peak interference. A titanium foil, placed over the uranium-contaminated area on a stainless-steel surface, attenuates incident X-rays while allowing significantly higher transmission of U Lα X-rays than Fe K X-rays. EDXRF measurements were conducted on uranium-contaminated stainless-steel models using a portable EDXRF spectrometer equipped with a titanium foil of optimized thickness as a filter. In the resulting EDXRF spectrum, the intensity of the U Lα peak showed a direct correlation with the uranium content, enabling accurate detection of uranium levels as low as 61 ng. The proposed method achieves a uranium detection sensitivity approximately 100 times greater than conventional α-survey meter methods. |
| 書誌情報 |
Spectrochimica Acta Part B: Atomic Spectroscopy
巻 229,
p. 107200,
発行日 2025-03
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.sab.2025.107200 |
