High Accuracy Measurement System of Absorbed Dose using Combination of Radiochromic Film and Micro-Densitometer for Radiation Therapy

Author

Aoyama, Hideki ; Azuma, Yoshiharu ; Goto, Sachiko ; Hato, Hirofumi ; Sumimoto, Tetsuhiro

Author_Institution

Central Div. of Radiol., Okayama Univ. Hosp.

fYear

2006

fDate

24-27 April 2006

Firstpage

403

Lastpage

408

Abstract

Radiochromic film (RCF) has been applied to mapping of dose distributions in radiation therapy. However, this particular RCF product suffers from intrinsic nonuniform response. In this study, we have carefully measured the nonuniformity of unirradiated RCF, and the response of irradiated RCF in pixel-to-pixel as function of various absorbed doses, in order to ascertains for the method of predicting the error of irradiated, unirradiated RCF

Keywords

densitometry; dosimetry; radiation therapy; dose distributions mapping; dose measurement system; microdensitometer; nonuniform response; radiation dosimetry; radiation therapy; radiochromic film; Biomedical applications of radiation; Dosimetry; Energy measurement; Instrumentation and measurement; Optical sensors; Radiation detectors; Radiology; Semiconductor films; Semiconductor radiation detectors; Spatial resolution; Nonuniform response; Radiation dosimetry; Radiochromic film;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE

Conference_Location

Sorrento

ISSN

1091-5281

Print_ISBN

0-7803-9359-7

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2006.328504

Filename

4124353