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首页> 外文期刊>The European physical journal, D. Atomic, molecular, and optical physics >Measurement of the K shell X-ray production cross-sections and fluorescence yields for Nd, Eu, Gd, Dy and Ho using radioisotope X-ray fluorescence in the external magnetic field
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Measurement of the K shell X-ray production cross-sections and fluorescence yields for Nd, Eu, Gd, Dy and Ho using radioisotope X-ray fluorescence in the external magnetic field

机译：在外部磁场中使用放射性同位素X射线荧光测量Nd，Eu，Gd，Dy和Ho的K壳X射线产生截面和荧光产率

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摘要

The effect of external magnetic field on the K-alpha and K-beta X-ray production cross-sections and K shell fluorescence yields for ferromagnetic elements Nd, Gd and Dy and paramagnetic elements Eu and Ho have been measured at the excitation energy of 59.5 keV gamma -rays from Am-241 radioactive source of strength 100 mCi in the external magnetic field of intensities +/- 0.75 T. Furthermore, I-K beta /I-K alpha intensity ratios for these elements have been measured in the external magnetic field. The K X-rays from different targets were detected using a high resolution Si(Li) semiconductor detector. For B = 0, the measured K X-ray production cross-sections, K shell fluorescence yields and the I-K beta /I-K alpha intensity ratios were compared with the experimental and theoretical data in literature. The results have shown that the fluorescence parameters as photoionization cross section, fluorescence yield, radiation rates and spectral linewidth can change when the irradiation is conducted in a magnetic field.
机译：在59.5的激发能下测量了外部磁场对铁磁性元素Nd，Gd和Dy以及顺磁性元素Eu和Ho的K-alpha和K-beta X射线产生截面以及K壳荧光产量的影响。在强度+/- 0.75 T的外部磁场中，来自强度为100 mCi的Am-241放射源的keVγ射线。此外，已在外部磁场中测量了这些元素的IK beta / IK alpha强度比。使用高分辨率Si（Li）半导体检测器检测到来自不同目标的K X射线。对于B = 0，将测得的K X射线产生截面，K壳荧光产量和I-Kβ/ I-Kα强度比与文献中的实验和理论数据进行比较。结果表明，当在磁场中进行辐照时，诸如光电离截面，荧光产率，辐射速率和光谱线宽的荧光参数可以改变。

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