Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1887629 | Physica Medica | 2013 | 5 Pages |
Abstract
Nitro blue tetrazolium (NBT) solution dosimeters were prepared and investigated based on radiation-induced reduction of NBT2+. NBT solution dosimeters containing different concentrations of NBT dye from 1 to 5Â mM were prepared in a solution of ethanol. The dosimeters were irradiated with 6Â MV X-ray beam at doses up to 30Â Gy. The dose sensitivity of NBT solution increases strongly with increase of concentrations of NBT dye. The dose response of NBT dosimeters increases remarkably by addition of various concentrations of sodium formate (0.5, 2.5 and 5Â mM). It becomes more remarkable with increasing pH value of NBT-sodium formate dosimeters. The sensitivity of the solution increased fairly with increase of irradiation temperature, therefore, the response of the solutions has to be corrected under actual processing conditions. The stability of solution dosimeters after irradiation was very high up to 30 days.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Khalid A. Rabaeh, Akram A. Moussa, Ahmed A. Basfar, Rashed I. Msalam,