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University of the Ryukyus Repository >
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Bulletin of the Faculty of Engineering, University of the Ryukyus >
No. 55 (1998/03) >
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| Title | : | Penumbral Imaging of Laser-Imploded Targets and Its Blind Reconstruction |
| Authors | : | Chen, Y.-W.
Kodama, R.
Nakao, Z. |
| Authors alternative | : | 陳, 延偉
仲尾, 善勝
Nakao, Zensho |
| Issue Date | : | Mar-1998 |
| Abstract | : | We describe the use of penumbral imaging technique for hard x-ray imaging of laser-imploded targets. The technique uses the facts that spatial information can be recovered from the shadow or penumbra that an unknown source casts through a simple large circular aperture (penumbral aperture), filters, and a sensitive x-ray CCD camera as a detector. The x-ray images with photon energies of 5ke Vand 10ke V to 30ke V have been obtained. We also propose a new reconstruction method based on power cepstrum of the penumbral image, which does not require exact information about the aperture function. |
| Type Local | : | 紀要論文 |
| ISSN | : | 0389-102X |
| Publisher | : | 琉球大学工学部 |
| URI | : | http://hdl.handle.net/20.500.12000/1970 |
| Citation | : | 琉球大学工学部紀要 no.55 p.65 -69 |
| Appears in Collections | : | No. 55 (1998/03)
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Files in This Item:
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| No55p65.pdf | | 394Kb | Adobe PDF | View/Open |
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