Variation of half-life and internal-conversion electron energy spectrum between U-235m oxide and fluoride

Shigekawa Y.; Kasamatsu Y.; Yasuda Y.; Kaneko M.; Watanabe M.; Shinohara A.

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Variation of half-life and internal-conversion electron energy spectrum between U-235m oxide and fluoride

机译：u-235m氧化物和氟化物之间的半衰期和内转换电子能谱的变化

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The nuclear half-life of U-235m has been reported to vary depending on the chemical environment. In this study, both the half-life and the internal-conversion (IC) electron energy spectrum were measured for U-235m with identical chemical environments for the first time. U-235m oxide and fluoride samples were subjected to these measurements, and clear differences in the half-life and the energy spectrum between these samples were observed. The peaks in the energy spectra were identified with a relativistic density functional theory calculation. The molecular orbital states of the U-235m oxide and fluoride, which were estimated from the energy spectra and the calculation, qualitatively explained the difference in the half-lives between the samples.

机译：据报道，U-235M的核半衰期因化学环境而异。在该研究中，首次使用相同的化学环境测量半衰期和内部转换（IC）电子能谱。对U-235M氧化物和氟化物样品进行这些测量，并且观察到这些样品之间的半衰期和能谱的透明差异。通过相对论的密度泛函理论计算识别能谱中的峰。从能谱和计算估计的U-235M氧化物和氟化物的分子轨道状态，定性解释了样品之间半衰期的差异。

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《Physical review, C》 |2018年第1期|共5页
作者
Shigekawa Y.; Kasamatsu Y.; Yasuda Y.; Kaneko M.; Watanabe M.; Shinohara A.;
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作者单位

Osaka Univ Grad Sch Sci 1-1 Machikaneyama Toyonaka Osaka 5600043 Japan;

Osaka Univ Grad Sch Sci 1-1 Machikaneyama Toyonaka Osaka 5600043 Japan;

Osaka Univ Grad Sch Sci 1-1 Machikaneyama Toyonaka Osaka 5600043 Japan;

Japan Atom Energy Agcy Nucl Sci &

Engn Ctr 2-4 Shirakata Tokai Ibaraki 3191195 Japan;

Japan Atom Energy Agcy Nucl Sci &

Engn Ctr 2-4 Shirakata Tokai Ibaraki 3191195 Japan;

Osaka Univ Grad Sch Sci 1-1 Machikaneyama Toyonaka Osaka 5600043 Japan;

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正文语种 eng
中图分类原子核物理学、高能物理学;
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Variation of half-life and internal-conversion electron energy spectrum between U-235m oxide and fluoride

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