Energy response of the GAFCHROMIC EBT3 in diagnosis range

Tatsuhiro Gotanda, T. Katsuda, R. Gotanda, T. Kuwano, T. Akagawa, N. Tanki, A. Tabuchi, T. Shimono, Y. Kawaji, T. Ideguchi

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

6 Citations (Scopus)


Although GAFCHROMIC EBT3 (EBT3) as a radiochromic film shows only slight energy dependency errors in comparison with other radiochromic films, the influence of energy dependence in the diagnosis energy range (less than 100 keV) is larger in the high energy range (over 100 keV). Based on this characteristic, adaptation of the EBT3 dosimetry in the diagnosis range was investigated. The energy response of the EBT3 in the diagnosis range at 30, 40, 50, 60 keV was measured using the density-absorbed dose calibration curve of the absorbed dose versus film density for the EBT3. Various data (degree of leaning, coefficient of determination) of each effective energy were compared. The density - absorbed dose calibration curves were linearly correlated in each of the effective energies. There was an energy dependent error of approximately 0.2% from 30 to 60 keV. As a result, it can be seen that the EBT3 is available in the diagnosis energy range. However, the influence of the non-uniformity error caused by the repeatability of the scan method must be considered because EBT3 distortion has a serious influence on measurement precision.

Original languageEnglish
Title of host publicationWorld Congress on Medical Physics and Biomedical Engineering, 2015
EditorsDavid A. Jaffray
PublisherSpringer Verlag
Number of pages4
ISBN (Print)9783319193878
Publication statusPublished - 2015
Externally publishedYes
EventWorld Congress on Medical Physics and Biomedical Engineering, 2015 - Toronto, Canada
Duration: Jun 7 2015Jun 12 2015

Publication series

NameIFMBE Proceedings
ISSN (Print)1680-0737


ConferenceWorld Congress on Medical Physics and Biomedical Engineering, 2015

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering


Dive into the research topics of 'Energy response of the GAFCHROMIC EBT3 in diagnosis range'. Together they form a unique fingerprint.

Cite this