| Item type |
文献 / Documents(1) |
| 公開日 |
2019-09-17 |
| アクセス権 |
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|
アクセス権 |
open access |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.6009/jjrt.2012_JSRT_68.11.1467 |
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|
言語 |
ja |
|
|
関連名称 |
10.6009/jjrt.2012_JSRT_68.11.1467 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
|
|
タイトル |
Digital Radiographyシステムで発生した黒点の放射能の推定 : 輝尽性蛍光体板表面に直接付着した低濃度放射性同位元素起源の黒点の解析 |
|
言語 |
ja |
| タイトル別表記 |
|
|
その他のタイトル |
Estimation of Activities Caused by Black Spots for Digital Radiography System : Analysis of Black Spots by the Low Concentrate Radioisotopes Adhered Directly to the Surface of the Phosphor Plate |
|
言語 |
en |
| 著者 |
林, 裕晃
西原, 貞光
高志, 智
花光, 宏樹
森, 美智子
三好, 弘一
小沼, 洋治
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Because of an accident of the nuclear power plants in the Fukushima, many radioisotopes (RI) have been diffused to the environment. As a result, black spots were appearing on the medical images which were taken by the phosphor plate. The aim of this study is to evaluate the activity (Bq) of radioactive contaminated IP based on the experiment using RI. The radioactive material (134Cs and/or 137Cs) in the form of liquid was dropped on filter paper (25 mm2), and radioactive sources having 40–240 Bq activities were made. These sources were closely attached to the IP with irradiation times of 2–22 h. Then, we obtained the relationship between pixel values and products of activities and irradiation times. Using these relationships, we evaluated the activity in the contaminated IP. The evaluated value of approximately 7 Bq was in good agreement with a value which was inhered in a chemical wiper used for the decontamination of the IP. Based on the results, we summarized that almost all black spots were created by the RI adhered directly to the IP. |
|
言語 |
en |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
imaging plate |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
black spots |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
radioisotopes |
| 書誌情報 |
ja : 日本放射線技術学会雑誌
en : Japanese Journal of Radiological Technology
巻 68,
号 11,
p. 1467-1473,
発行日 2012-11-20
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| 収録物ID |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
03694305 |
| 収録物ID |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
18814883 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN00197784 |
| 出版者 |
|
|
出版者 |
日本放射線技術学会 |
|
言語 |
ja |
| EID |
|
|
識別子 |
256635 |
|
識別子タイプ |
URI |
| 言語 |
|
|
言語 |
jpn |
jjrt_68_11_1467.pdf (810 KB)
