アクセス数 : ?
ダウンロード数 : ?
ID 113654
タイトル別表記
An Experiment to Estimate Locations of Radioisotopes Producing Black Spots on Medical Images
著者
花光, 宏樹 徳島大学
森, 美智子 徳島大学
キーワード
X-ray detector
radioisotope
radioactive contamination
black spot
資料タイプ
学術雑誌論文
抄録
Caused by the accident of nuclear power plants in the Fukushima at 2011, many radioisotopes (RI) were diffused to the environment. As a result, X-ray detectors were stained with RIs and black spots appeared on the medical images. Using the RI of 134Cs and 137Cs, black spots which appeared on the photostimulable phosphor plate (X-ray detector) were reproduced experimentally. The aim of this study is the following two points; firstly, to clarify the relationship between long-time irradiations of RI and fading effect, and secondly, to clarify the positional relationship between the RI sources and the X-ray detector based on irradiation times of RI. For the latter experiment, the samples were made by spraying water (containing the RI) in order to reproduce small point sources. Then, the sources were placed on the photostimulable phosphor plate or on the cassette, and corresponding images with different irradiation times were taken. The black spots could be reproduced with the condition, in which sources were directly adhered to the photostimulable phosphor plate. We observed the black spots when sources were placed on the cassette for one week. Based on the result, we summarized that the RI which are directly adhered on the photostimulable phosphor plate may produce the black spots.
掲載誌名
日本放射線技術学会雑誌
ISSN
03694305
18814883
cat書誌ID
AN00197784
出版者
日本放射線技術学会
68
10
開始ページ
1307
終了ページ
1313
発行日
2012-10-20
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
jpn
著者版フラグ
出版社版
部局
医学系