| Presentation | 2023-03-14 Compton Scattering X-ray CT using Iterative Reconstruction Method Ryota Nakashima, Naohiro Toda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | X-ray CT(Computed Tomography) is a device that uses a computer to reconstruct a tomographic image from the intensity data of X-rays that have passed through an object. Scattered rays are generated from the object in addition to the transmitted primary X-rays. Scattered X-rays cause artifacts on reconstructed images, so they are removed by grids in ordinary X-ray CT. We believe that removing the scattered X-ray wastes information about the object and exposure in the scattered X-ray. Norton has proposed a reconstruction method based on the physical properties of Compton-scattered X-rays, but the problem is that it assumes a detector with a high energy resolution. Kobayashi introduced the iterative reconstruction method to Norton's method, which can be expected to achieve with high accuracy. He showed the possibility of reconstruction with a realistic energy resolution detector. However, the method lacks verification because it does not take into account the irradiation method of X-rays and the attenuation of X-ray photons. In this paper, We propose a new reconstruction method that incorporates the attenuation of X-ray photons and perform numerical experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | X-ray CT / Compton Scattered X-rays / Filtered Back Projection / Scattered-ray Imaging / nteractive |
| Paper # | MBE2022-62 |
| Date of Issue | 2023-03-06 (MBE) |
| Conference Information | |
| Committee | NC / MBE |
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| Conference Date | 2023/3/13(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | The Univ. of Electro-Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Brain architecture, General |
| Chair | Hiroshi Yamakawa(Univ of Tokyo) / Junichi Hori(Niigata Univ.) |
| Vice Chair | Hirokazu Tanaka(Tokyo City Univ.) / Hisashi Yoshida(Kinki Univ.) |
| Secretary | Hirokazu Tanaka(NTT) / Hisashi Yoshida(NICT) |
| Assistant | Yoshimasa Tawatsuji(Waseda Univ.) / Tomoki Kurikawa(KMU) / Emi Yuda(Tohoku Univ) / Miki Kaneko(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Neurocomputing / Technical Committee on ME and Bio Cybernetics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Compton Scattering X-ray CT using Iterative Reconstruction Method |
| Sub Title (in English) | |
| Keyword(1) | X-ray CT |
| Keyword(2) | Compton Scattered X-rays |
| Keyword(3) | Filtered Back Projection |
| Keyword(4) | Scattered-ray Imaging |
| Keyword(5) | nteractive |
| 1st Author's Name | Ryota Nakashima |
| 1st Author's Affiliation | Aichi Prefectural Univercity(Aichi Prefectural Univ.) |
| 2nd Author's Name | Naohiro Toda |
| 2nd Author's Affiliation | Aichi Prefectural Univercity(Aichi Prefectural Univ.) |
| Date | 2023-03-14 |
| Paper # | MBE2022-62 |
| Volume (vol) | vol.122 |
| Number (no) | MBE-424 |
| Page | pp.pp.17-22(MBE), |
| #Pages | 6 |
| Date of Issue | 2023-03-06 (MBE) |