Development of an ICCD-scintillator system for measurement of spatial dose distributions around 'hot particles'.
An intensified charge coupled device (ICCD)-scintillator system has been investigated for potential use in measuring the spatially non-uniform dose distribution around 'hot particles'. This imaging system is capable of producing real-time measurements considerably quicker than other presently available radiation dosimetry techniques and exhibits good linearity and reproducibility and relatively high spatial resolution (approximately 17.5 microm). The time required for a dose evaluation is less than a hundredth that required for radiochromic dye film measurements. The non-uniformity of the system has been eliminated by applying pixel-to-pixel correction factors. The measurable dose rate range using a 110 microm thick scintillator extends from approximately 2000 down to approximately 6 Gy h(-1). The prototype ICCD-scintillator system has been used in evaluation of the skin dose from some high-activity nuclear fuel fragments. The results agree within a few percentage with radiochromic dye film measurements for 1 cm(2) averaging areas.
Aydarous
A Sh
ASh
Physics and Mathematics Department, Faculty of Science, University of Umm Al-Qura, Al-Hawiah, Taif, P.O. Box 5700, Kingdom of Saudi Arabia. Aydarous@hotmail.com
Darley
P J
PJ
Charles
M W
MW
D001610:Beta Particles; D004784:Environmental Monitoring / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D009862:Online Systems; D010316:Particle Size; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D011868:Radioisotopes / Q000032:analysis* / Q000737:chemistry; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012588:Scintillation Counting / Q000295:instrumentation* / Q000379:methods; D012680:Sensitivity and Specificity; D012879:Skin Physiological Phenomena; D013326:Strontium Radioisotopes / Q000032:analysis; D018511:Systems Integration; D015021:Yttrium Radioisotopes / Q000032:analysis
D011868:Radioisotopes; D013326:Strontium Radioisotopes; D015021:Yttrium Radioisotopes