The use of an inexpensive red acetate filter to improve the sensitivity of GAFChromic dosimetry.
The sensitivity of GAFChromic dosimetry using a conventional broad band light source densitometer has significantly been improved twofold using an inexpensive red acetate filter overlay during the densitometric measurements. This thin sheet of red acetate enhances the dosimetric analysis of radiochromic blue image distributions recorded on GAFChromic films. The combination provides higher sensitivity in the optical density measurements than the more expensive He-Ne laser-scanning densitometers.
Odero
D O
DO
Department of Radiation Oncology, SUNY-Stony Brook, New York 11794-7028, USA. oderoda@jhmi.edu
Gluckman
G R
GR
Welsh
K
K
Wlodarczyk
R A
RA
Reinstein
L E
LE
D000085:Acetates / Q000737:chemistry*; D004307:Dose-Response Relationship, Radiation; D005373:Film Dosimetry / Q000295:instrumentation* / Q000379:methods*; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014962:X-Ray Film
D000085:Acetates