Construction of optical CT system for evaluation of polymer gel dosimeters

2015 Fiscal Year Final Research Report

• Project/Area Number: 24601012
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: 医学物理学・放射線技術学
• Research Institution: Ibaraki Prefectural University of Health Science
• Principal Investigator: Kawamura Hiraku 茨城県立医療大学, 保健医療学部, 助教 (80424050)
• Research Collaborator: TAKANASHI TAKAOKI 茨城県立医療大学, 保健医療学部, 嘱託助手 ; SHIMADA YOSHIKAZU 茨城県立医療大学, 保健医療学部, 嘱託助手
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: ポリマーゲル線量計 / 光断層装置 / 画像再構成

Outline of Final Research Achievements

In this study, we constructed Optical Computed Tomography(OCT) system for evaluation of polymer gel dosimeters. The OCT system is composed of He-Ne laser for light source, photo diode for detector, and rotate and linear motion stages. The system was scanned with light source. The detector in system was measured permeation light through gel dosimeter from light source. Acquired transmission data per angle was reconstructed using Filtered back-projection method. The reconstructed images of irradiated polymer gels were represented inner structure for tomographic images of irradiated gels. The system is useful for efficient quantitative measurements and high spatial resolution acquition for evaluation of polymer gel dosimeter.

Free Research Field

放射線技術学