|
University of the Ryukyus Repository >
Faculty of Engineering >
Peer-reviewed Journal Articles (Faculty of Engineering) >
| |
| Title | : | Penumbral imaging with multi-penumbral-apertures and its heuristic reconstruction for nuclear reaction region diagnostics |
| Authors | : | Ueda, Tatsuki
Fujioka, Shinsuke
Nozaki, Shinya
Chen, Yen-wei
Nishimura, Hiroaki |
| Issue Date | : | 1-Aug-2010 |
| Abstract | : | Imaging of nuclear reaction region is important to clarify heating mechanism in a fast-ignition plasma. The nuclear reaction region can be identified by hard x-ray and neutron images, which are emanated from the heated region. We proposed a novel penumbral imaging that is suitable for imaging quanta having strong penetrating power, such as hard x ray and neutron. Using multiple penumbral apertures arranged with M-sequence leads to two orders of magnitude higher detection efficiency than that with a single aperture. In addition, a heuristic method was introduced to a image reconstruction procedure for reducing artifacts caused by noise in a penumbral image. A proof-of-principle experiment indicates that the proposed imaging is superior to the conventional one. |
| URL | : | https://doi.org/10.1088/1742-6596/244/3/032061 |
| Type Local | : | 雑誌掲載論文 |
| ISSN | : | 0976-7673
0976-7681 |
| Publisher | : | IOP Publishing |
| URI | : | http://hdl.handle.net/20.500.12000/45945 |
| Citation | : | Journal of Physics : Conference Series Vol.244 no.3 |
| Appears in Collections | : | Peer-reviewed Journal Articles (Faculty of Engineering)
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| Tatsuki_Ueda_2010_J._Phys.__Conf._Ser._244_032061.pdf | | 3300Kb | Adobe PDF | View/Open |
|
|
|
