Hayakawa, Y. and Hayakawa, K. and Inagaki, M. and Kuwada, T. and Nakao, K. and Nogami, K. and Sato, I. and Takahashi, Y. and Tanaka, T. (2011) Improvement in the performance of the X-ray source based on parametric X-ray radiation using a wedge-shaped target crystal. Il nuovo cimento C, 34 (4). pp. 253-259. ISSN 1826-9885
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Abstract
The properties of parametric X-ray radiation (PXR) emitted from a wedge-shaped Si(111) crystal plate were experimentally investigated using the PXR generator at the Laboratory for Electron Beam Research and Application (LEBRA) of Nihon University. The wedge surface was imposed on a symmetric-cut Si(111) plate and has an asymmetric cut-surface with respect to the (111) crystal planes. As a result of the experiment, it was found that the PXR intensity improved can be obtained suppressing the degradation of the X-ray performance using a wedgeshaped target. With this improvement, phase-contrast images without absorption contrast could be obtained from DEI images taken with the exposure of severalten seconds. The reduction of the exposure time made it possible to carry out a computed tomography (CT) experiment by DEI within a practical machine time, and phase-contrast tomograms of a biological sample were obtained at the PXR energy of 17.5 keV.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Radiation by moving charges ; X-ray beams and x-ray optics ; X-ray imaging |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 07 Apr 2020 19:50 |
| Last Modified: | 07 Apr 2020 19:50 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17340 |
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