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No. 55 (1998/03) >

 
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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