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タイトル: | Demonstration of tomographic imaging of isotope distribution by nuclear resonance fluorescence |
著者: | Zen, Heishun https://orcid.org/0000-0002-2719-6985 (unconfirmed) Ohgaki, Hideaki https://orcid.org/0000-0002-3553-4091 (unconfirmed) Taira, Yoshitaka Hayakawa, Takehito Shizuma, Toshiyuki Daito, Izuru Yamazaki, Jun-ichiro Kii, Toshiteru Toyokawa, Hiroyuki Katoh, Masahiro |
著者名の別形: | 全, 炳俊 大垣, 英明 紀井, 俊輝 |
発行日: | Mar-2019 |
出版者: | AIP Publishing |
誌名: | AIP Advances |
巻: | 9 |
号: | 3 |
論文番号: | 035101 |
抄録: | Computed Tomography (CT) using X-ray attenuation by atomic effects is now widely used for medical diagnosis and industrial non-destructive inspection. In this study, we performed a tomographic imaging of isotope (²⁰⁸Pb) distribution by the Nuclear Resonance Fluorescence (NRF), i.e. isotope specific resonant absorption and scattering of gamma rays, using Laser Compton Scattering (LCS) gamma rays. The NRF-CT image which includes both effects of atomic attenuation and nuclear resonant attenuation was obtained. By accounting for the atomic attenuation measured by a conventional method at the same time, a clear ²⁰⁸Pb isotope CT image was obtained. The contrast degradation due to notch refilling caused by small-angle Compton scattering is discussed. This study clearly demonstrates the capability of the isotope-specific CT imaging based on nuclear resonant attenuation which will be a realistic technique when the next generation of extremely intense LCS gamma-ray sources will be available. The expected image acquisition time using these intense LCS gamma rays was discussed. |
著作権等: | © 2019 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
URI: | http://hdl.handle.net/2433/243832 |
DOI(出版社版): | 10.1063/1.5064866 |
出現コレクション: | 学術雑誌掲載論文等 |
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