Parametric X-ray radiation as a novel source for X-ray imaging

Parametric X-ray radiation as a novel source for X-ray imaging
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参数 X 射线辐射作为 X 射线成像的新型源

DOI:
10.1002/xrs.2403
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发表时间:
2012
期刊:
X-Ray Spectrom.
影响因子:
--
通讯作者:
Isamu Sato
Isamu Sato
中科院分区:
--
文献类型:
--
作者:
Yumiko Takahashi;Yasushi Hayakawa;Takao Kuwada;Toshinari Tanaka;Toshiro Sakae;Keisuke Nakao;Kyoko Nogami;Manabu Imagaki;Ken Hayakawa;Isamu Sato

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一种基于参量X射线辐射(PXR)的新型X射线源已在日本日本大学电子束研究与应用实验室(LEBRA)投入实际使用。PXR束是由LEBRA直线加速器的100 MeV电子束照射Si单晶产生的。在这项研究中,使用衍射增强成像(DEI)方法的相衬成像实验已经通过使用能量为17.5 keV的参量X射线进行。与传统的吸收射线照相相比,DEI方法获得的成功图像更清晰地显示了生物软组织的详细内部结构。考虑到LEBRA PXR源的重要特性,即,紧凑的系统,直径约80 mm的大X射线束照射场和准单色性,结果表明可能构建紧凑的直线加速器驱动的PXR-DEI设备并应用于医学诊断。版权所有© 2012约翰威利父子有限公司.
A novel X‐ray source based on parametric X‐ray radiation (PXR) has been put into practical use at the Laboratory for Electron Beam Research and Application (LEBRA), Nihon University, Japan. The PXR beam has been generated from a Si single crystal irradiated by a 100‐MeV electron beam from a linac at the LEBRA. In this study, phase‐contrast imaging experiments using a diffraction‐enhanced imaging (DEI) method have been carried out by using the parametric X‐rays at an energy of 17.5 keV. The successful images obtained by the DEI method have shown detailed inner structures of soft biological tissues more clearly as compared with those by conventional absorption radiography. Given the significant properties of the LEBRA PXR source, i.e., compact system, large X‐ray beam irradiation field of approximately 80 mm in diameter and quasi‐monochromaticity, the result suggests a possible construction of a compact linac‐driven PXR‐DEI device and application to medical diagnoses. Copyright © 2012 John Wiley & Sons, Ltd.
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