Feasibility study on a micro-size dosimeter using an optical fiber probe based on a photostimulable phosphorescence

Kotaro Nakahashi, Kenichi Watanabe, Akira Uritani, Atsushi Yamazaki, Eiji Ariga

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

We propose a novel micro-size dosimeter using an optical fiber probe based on the PSL from the BaFBr:Eu2+. Through basic experiments using the prototype dosimeter, the feasibility of the proposed dose monitoring method has been confirmed. We confirm that increasing the stimulus laser power is effective to improve the signal to noise ratio. The lower limit of detectable dose of the prototype dosimeter probe having sensitive region with the diameter of 200 μm is preliminarily estimated to be 11 mGy for a Co-60 gamma-rays. This value is much smaller than the typical irradiation dose (a few Gy per treatment) in the radiotherapy. We can measure the dose in a few hundred subdivisions during a treatment. We, therefore, conclude that the proposed micro-size dosimeter can be a promising candidate of in-vivo and on-line dose monitor in the radiotherapy.

本文言語英語
ページ(範囲)1547-1550
ページ数4
ジャーナルRadiation Measurements
46
12
DOI
出版ステータス出版済み - 12 2011
外部発表はい

All Science Journal Classification (ASJC) codes

  • 放射線
  • 器械工学

フィンガープリント

「Feasibility study on a micro-size dosimeter using an optical fiber probe based on a photostimulable phosphorescence」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル