Novel applications of radiochromic film in radiation dosimetry at high-energy accelerators

Author

Mukherjee, B. ; Makowski, D. ; Krasinski, P. ; Cross, P. ; Grecki, M. ; Simrock, S.

Author_Institution

Deutsche Elektronen-Synchrotron DESY, GERMANY

fYear

2008

fDate

19-21 June 2008

Firstpage

131

Lastpage

134

Abstract

Radiochromic films are now being widely used by radiation oncologists and medical physicists to analyse complex photon field distributions relevant to therapy planning at modern medical linear accelerators. Linear dose response, absence of cumbersome chemical processing and lower cost facilitate the radiochromic films as highly reliable passive radiation dosimeters for clinical applications. However, one of the major shortcomings of the radiochromic films is the limited dynamic range, thereby restricting their application as wide range passive gamma dosimeters like ThermoLuminescent Dosimeters (TLDs). We have developed novel experimental techniques to broaden the dynamic detection range of common radiochromic film of type Gaf-EBT (Manufacturer: International Speciality Product, ISP, USA) from 5.0 – 500 cGy to 0.3 – 1200 cGy. An application of enhanced radiochromic film dosimeters (ERFD) replacing the well known TLD in radiation dosimetry of high-energy accelerator is recommended.

Keywords

Acceleration; Dosimetry; Dynamic range; Electrons; Ionizing radiation; Linear particle accelerator; Microelectronics; Optical control; Optical films; Physics; Bremsstrahlung; Dynamic response; Passive dosimeter; Photoneutrons; Radiation environment; Radiochromic film;

fLanguage

English

Publisher

iet

Conference_Titel

Mixed Design of Integrated Circuits and Systems, 2008. MIXDES 2008. 15th International Conference on

Conference_Location

Poznan, Poland

Print_ISBN

978-83-922632-7-2

Electronic_ISBN

978-83-922632-8-9

Type

conf

Filename

4600875