Application of transition-edge sensors for micro-X-ray fluorescence measurements and micro-X-ray absorption near edge structure spectroscopy: a case study of uranium speciation in biotite obtained from a uranium mine

被引：0

作者：

Yomogida, Takumi ^{[1
,2
]}

Hashimoto, Tadashi ^{[3
]}

Okumura, Takuma ^{[14
]}

Yamada, Shinya ^{[5
]}

Tatsuno, Hideyuki ^{[4
]}

Noda, Hirofumi ^{[6
]}

Hayakawa, Ryota ^{[15
]}

Okada, Shinji ^{[16
]}

Takatori, Sayuri ^{[8
]}

Isobe, Tadaaki ^{[9
]}

Hiraki, Takahiro ^{[8
]}

Sato, Toshiki ^{[10
]}

Toyama, Yuichi ^{[7
]}

Ichinohe, Yuto ^{[9
]}

Sekizawa, Oki ^{[11
]}

Nitta, Kiyofumi ^{[11
]}

Kurihara, Yuichi ^{[12
]}

Fukushima, Shigeru ^{[13
]}

Uruga, Tomoya ^{[11
]}

Kitatsuji, Yoshihiro ^{[1
]}

Takahashi, Yoshio ^{[2
]}

机构：

[1] Japan Atom Energy Agcy, Nucl Sci & Engn Ctr, Naka, Ibaraki 3191195, Japan

[2] Univ Tokyo, Dept Earth & Planetary Sci, Bunkyo Ku, Tokyo 1130033, Japan

[3] Japan Atom Energy Agcy JAEA, Adv Sci Res Ctr ASRC, Naka, Ibaraki 3191184, Japan

[4] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan

[5] Rikkyo Univ, Dept Phys, Toshima Ku, Tokyo 1718501, Japan

[6] Osaka Univ, Dept Earth & Space Sci, Toyonaka, Osaka 5600043, Japan

[7] Chubu Univ, Engn Sci Lab, Kasugai, Aichi 4878501, Japan

[8] Okayama Univ, Res Inst Interdisciplinary Sci, Okayama, Okayama 7008530, Japan

[9] RIKEN, RIKEN Nishina Ctr, Wako, Saitama 3510198, Japan

[10] Meiji Univ, Dept Phys, Kawasaki, Kanagawa 2148571, Japan

[11] Japan Synchrotron Radiat Res Inst JASRI, Ctr Synchrotron Radiat Res, Sayo, Hyogo 6795198, Japan

[12] Nagaoka Univ Technol, Nagaoka, Niigata 9402188, Japan

[13] Japan Atom Energy Agcy, Ningyotoge Environm Engn Ctr, Tomata, Okayama 7080601, Japan

[14] Tokyo Metropolitan Univ, Dept Chem, Hachioji, Tokyo 1920397, Japan

[15] KEK, Int Ctr Quantum Field Measurement Syst Studies Un, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan

[16] Chubu Univ, Dept Math & Phys Sci, Kasugai, Aichi 4878501, Japan

来源：

ANALYST | 2024年 / 149卷 / 10期

关键词：

NUCLIDE MIGRATION; SORPTION; REDUCTION; FUKUSHIMA; STABILITY; OXIDATION; CRYSTAL; EU(III); DEPOSIT; URANYL;

D O I：

10.1039/d4an00059e

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, we successfully applied a transition-edge sensor (TES) spectrometer as a detector for microbeam X-ray measurements from a synchrotron X-ray light source in the hard X-ray region to determine uranium (U) distribution at the micro-scale and its chemical species in biotite obtained from a U mine. It is difficult to separate the fluorescent X-ray of the U L alpha 1 line at 13.615 keV from that of the Rb K alpha line at 13.395 keV in the X-ray fluorescence spectrum with an energy resolution of approximately 220 eV using a conventional silicon drift detector (SDD). Meanwhile, the fluorescent X-rays of U L alpha 1 and Rb K alpha were fully separated by a TES with 50 eV energy resolution at an energy of around 13 keV. The successful peak separation by the TES led to an accurate mapping analysis of trace U in micro-X-ray fluorescence measurements and a decrease in the signal-to-background ratio in micro-X-ray absorption near edge structure spectroscopy. Thus, it could be a powerful tool for studying the U distribution and speciation in various environmental samples. Interference free distribution and speciation analysis of uranium are achieved by using a transition-edge sensor for microbeam X-ray measurements in the hard X-ray region.

引用

页码：2932 / 2941

页数：10

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