Investigation of the relationship between Cherenkov light and absorbed dose with the use of emission CT based on Cherenkov radiation

Noriyuki Kadoya, Katsuyoshi Tabushi, Chie Hirayama, Kotaro Morikawa, Satoshi Kitou, Kouhei Shimomura, Yuichi Aoyama, Mituyasu Hashimoto

研究成果: Conference contribution

抄録

In this study, we have obtained the distribution of Cherenkov light generated by X-rays (10MV), and investigated the relationship between Cherenkov light and the absorbed dose. Furthermore, we have examined whether we could calculate Cherenkov light by EGS(electron-gammashower). In order to measure the light the films were stuck to the collimator that was set at the side of the aquarium irradiated by X-rays, when the turntable was rotated at the step of 15 degrees. Secondly, the film densities of photograph were changed to the light exposure. Moreover, we obtained the CT image based on Cherenkov light. Its image is regarded as the distribution of Cherenkov light. In the comparison between the distribution of Cherenkov light obtained in the experiment and that of the absorbed dose calculated by EGS, they were approximately equal to each other. However, the amount of the relative light outside the irradiation field is greater than that of the relative absorbed dose calculated by EGS. It could be due to the aperture size of the collimator for the light. The distribution of Cherenkov light obtained in the experiment and that calculated by EGS were the almost same. It seems that the light can be calculated by EGS. In conclusion, Cherenkov light was concerned with the absorbed dose. Thus, it may be possible to calculate the absorbed dose by measuring Cherenkov light.

本文言語English
ホスト出版物のタイトルIFMBE Proceedings
編集者Sun I. Kim, Tae Suk Suh
出版社Springer Verlag
ページ2122-2125
ページ数4
1
ISBN(印刷版)9783540368397
DOI
出版ステータスPublished - 2007
外部発表はい
イベント10th World Congress on Medical Physics and Biomedical Engineering, WC 2006 - Seoul, Korea, Republic of
継続期間: 2006 8月 272006 9月 1

出版物シリーズ

名前IFMBE Proceedings
番号1
14
ISSN(印刷版)1680-0737
ISSN(電子版)1433-9277

Other

Other10th World Congress on Medical Physics and Biomedical Engineering, WC 2006
国/地域Korea, Republic of
CitySeoul
Period06/8/2706/9/1

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 生体医工学

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