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Dosimetry

Dose response characteristics of novel GafChromic films determined

Published in Medical Devices and Surgical Technology Week, December 5th, 2004

The dose response characteristics of several GafChromic films have been determined.

Scientists in New York conducted a "systematic study of the dose response characteristics of two new models and one commonly used model of GafChromic film: HS, XR-T, and MD55-2, respectively."

"We irradiated these film models with three different radiation sources: 125I, 192Ir, and 6 MV photon beam (6 MVX)," explained S.T. Chiutsao and coauthors at the Beth Israel Medical Center. "We scanned the films with three different densitometers: a He-Ne laser with a wavelength of 633 nm, a spot densitometer with a wavelength of 671 nm, and a CCD camera...

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