title: Response of GafChromic MD-55 radiochromic film to synchrotron radiation.
abstract: Synchrotron radiation has been increasingly and extensively used for materials science, biology and medical research. For measurement of high dose from the low energy photons, tissue-equivalent dosemeters having linearity in the Gy region are required. In this study, energy and dose responses of double-layer Gafchromic film MD-55 were measured using 10-40 keV monoenergetic photons from synchrotron radiation. The result showed that the energy responses normalised at 60Co gamma rays were 0.58-0.59 at 10-20 keV, 0.66 at 30 keV and 0.72 at 40 keV in air. The linearity was confirmed to extend from 2 Gy to 100 Gy.
authors.affiliation: Japan Synchrotron Radiation Research Institute, Sayo, Hyogo, Japan. nariyama@spring8.or.jp
authors.forename: N
authors.initials: N
authors.lastname: Nariyama
authors.forename: Y
authors.initials: Y
authors.lastname: Namito
authors.forename: S
authors.initials: S
authors.lastname: Ban
authors.forename: H
authors.initials: H
authors.lastname: Hirayama
mesh_terms: D005720:Gamma Rays; D017785:Photons; D011854:Radiochemistry; D012680:Sensitivity and Specificity; D017356:Synchrotrons; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D014962:X-Ray Film