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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationIFMBE Proceedings
EditorsSun I. Kim, Tae Suk Suh
PublisherSpringer Verlag
Pages2122-2125
Number of pages4
Edition1
ISBN (Print)9783540368397
DOIs
Publication statusPublished - 2007 Jan 1
Externally publishedYes
Event10th World Congress on Medical Physics and Biomedical Engineering, WC 2006 - Seoul, Korea, Republic of
Duration: 2006 Aug 272006 Sep 1

Publication series

NameIFMBE Proceedings
Number1
Volume14
ISSN (Print)1680-0737
ISSN (Electronic)1433-9277

Other

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

Keywords

  • Absorbed dose
  • Cherenkov
  • CT
  • Dosimetry
  • Radiotherapy

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering

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  • Cite this

    Kadoya, N., Tabushi, K., Hirayama, C., Morikawa, K., Kitou, S., Shimomura, K., Aoyama, Y., & Hashimoto, M. (2007). Investigation of the relationship between Cherenkov light and absorbed dose with the use of emission CT based on Cherenkov radiation. In S. I. Kim, & T. S. Suh (Eds.), IFMBE Proceedings (1 ed., pp. 2122-2125). (IFMBE Proceedings; Vol. 14, No. 1). Springer Verlag. https://doi.org/10.1007/978-3-540-36841-0_535