Use of multiple layers of Gafchromic film to increase sensitivity
نویسندگان
چکیده
منابع مشابه
Use of multiple layers of Gafchromic film to increase sensitivity.
This note investigates the increase of the sensitivity of radiochromic film by layering the film together. Investigations with up to five layers of radiochromic film placed together as a single dosimeter have allowed accurate two-dimensional dosimetry at low radiotherapy doses. The sensitivity of the response of the layered film increases with the number of layers, with the five-layer dosimeter...
متن کاملDosimetric characterization of GafChromic EBT film
The suitability of radiochromic EBT film was studied for high-precision clinical quality assurance (QA) by identifying the dose response for a wide range of irradiation parameters typically modified in highly-conformal treatment techniques. In addition, uncertainties associated with varying irradiation conditions were determined. EBT can be used for dose assessment of absorbed dose levels as we...
متن کاملResponse of GafChromic MD-55 film to synchrotron radiation
Introduction Recently, owing to the increase of synchrotron radiation facilities such as SPring-8, dose measurements of high-intense low-energy photons are increasingly needed for radiation protection and medical researches. For the dose measurement, tissue equivalence of dosimeter material becomes important. A radiochromic film that has sensitivity in the dose region of several Gy to 100 Gy ha...
متن کاملCorresponding dose response of radiographic film with layered gafchromic film.
This note investigates the dose response of layered HS Gafchromic film compared to Kodak EDR-2 radiographic film. Using five layers of HS type Gafchromic film a dose response greater than EDR-2 film is achieved at the peak wavelength (0.55 OD/Gy versus 0.3 OD/Gy for EDR-2 film). Even over a broader waveband of 30 nm, which is similar to that found in ultra bright LED scanners, the response was ...
متن کاملthe use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach
abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics in Medicine and Biology
سال: 2001
ISSN: 0031-9155,1361-6560
DOI: 10.1088/0031-9155/46/10/401