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Start Over Author "Shi, Huantong" Journal ieee transactions on plasma science
10 results on '"Shi, Huantong"'

10. Energy Spectrum Measurement of X-Ray Radiation From a Compact X-Pinch Device.

Author

Zhang, Ran, Luo, Haiyun, Zou, Xiaobing, Shi, Huantong, Zhu, Xinlei, Zhao, Shen, Wang, Xinxin, Yap, Seongling, and Wong, Chiow San

Subjects
PULSED power systems, PHOTOCONDUCTING devices, METALS, DETECTORS, WAVELENGTHS
Abstract

X-ray point source generated by X-pinches on the compact pulsed power device PPG-2 of Tsinghua University is well suited for phase-contrast imaging of weakly X-ray absorbing organism. Using six sets of photoconducting devices each covered by a filter of specific transmittance curve, the X-ray radiation energy spectra from Mo-wire and W-wire X-pinches were experimentally studied. It was found that X-ray with photon energy less than 2 keV takes the main part, about 70% of the total radiation, and the energy spectrum obeys exponential distribution; the bumps in the intervals of 2–3 keV for Mo and 4–6 keV for W may be attributed to the existence of line spectra such as L-shell of Mo and M-shell of W. Compared with the results of other groups, our measured X-ray energy yield were several times higher. The reasons may be attributed to differences in load current rising rate or different responses of X-ray detectors. [ABSTRACT FROM PUBLISHER]

Published
2014
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