Measurement of mass attenuation coefficients around the K absorption edge by parametric X-rays
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- 作者：Tamura ; Masaya ; Akimoto ; Tadashi ; Aoki ; Yohei ; Ikeda ; Jiro ; Sato ; Koichi ; Fujita ; Fumiyuki ; Homma ; Akira ; et. al.
- 关键词：Parametric X-ray radiation (PXR) ; Single crystal ; Monochromatic X-ray ; Variable wavelength ; Attenuation coefficient of X-ray ; K absorption edge
- 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
- 出版年：2002
- 出版时间：May 21, 2002
- 年：2002
- 卷：484
- 期：1-3
- 页码：642-649
- 全文大小：272 K
文摘
When electrons at relativistic velocities pass through a crystal plate, such as silicon, photons are emitted around the Bragg angle for X-ray diffraction. This phenomenon is called parametric X-ray radiation (PXR). The monochromaticity and directivity of PXR are adequate and the energy can be changed continuously by rotating the crystal. This study measured the mass attenuation coefficient around the K-shell absorption edge of Nb, Zr and Mo as a PXR application of monochromatic hard X-ray radiation sources.