%0 Journal Article
%T Depth dose determination for a mixed radiation field using a thin plastic scintillator dosimetry system
%A Aydarous Abdulkadir
%A Waker Anthony
%J Nuclear Technology and Radiation Protection
%D 2012
%I VIN?A Institute of Nuclear Sciences
%R 10.2298/ntrp1201020a
%X Plastic scintillators, due to their favorable characteristics compared with other dosimetry techniques, were used as detectors to estimate dose distributions in high gradient dose fields. In this study, a thin plastic scintillator (type BC-408) was coupled to a photomultiplier tube and multichannel analyzer as a technique for real-time dose measurements. The well-defined beta, gamma, and beta-gamma emitters (137Cs, 133Ba, 22Na, 109Cd, 55Fe, and 241Am) have enabled parallel depth dose measurements with Monte-Carlo calculations to be critically compared. The measurements of doses were made for depths range of 0.1 mm to 5 mm. The MCNP dose results were comparable with the plastic scintillator detector and can be used to approximately estimate the dose rate values from mixed electron-photon fields. The minimum dose rate that can be measured by the plastic scintillator system was ~2 ¦ÌGy/h and was for 109Cd source of activity 222 Bq.
%K plastic scintillator
%K MCNP code
%K mixed field radiation
%K dose
%U http://www.doiserbia.nb.rs/img/doi/1451-3994/2012/1451-39941201020A.pdf