On neutron-gamma mixed field dosimetry with LiF:Mg,Ti at radiation protection dose levels.
The possibility of using the specific responses of the high temperature Peaks 6 and 7 and Peaks 4 and 5 to different LET radiations was mentioned in the past mainly for very high doses. The applicability of the two regions method for thermal neutrons--gamma ray mixed field dosimetry was investigated by analysing the response of LiF:Mg,Ti dosemeters irradiated to different ratios of thermal neutrons and gamma rays at radiation protection dose levels encountered in routine work conditions, up to approximately 50 mSv. The Region of Interest method was used to define the areas of the Peaks 4 + 5 and 6 + 7. We found that a simple algorithm can be used to determine with good accuracy the separate contributions of neutron and gamma doses.
Weinstein
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M
Ben Gurion University of the Negev, Beer Sheva, 84105, Israel.
German
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U
Alfassi
Z B
ZB
D003198:Computer Simulation; D004307:Dose-Response Relationship, Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005240:Feasibility Studies; D005459:Fluorides / Q000737:chemistry* / Q000528:radiation effects*; D005720:Gamma Rays; D018020:Lithium Compounds / Q000737:chemistry* / Q000528:radiation effects*; D008274:Magnesium / Q000737:chemistry / Q000528:radiation effects; D008422:Materials Testing; D008956:Models, Chemical; D009502:Neutrons; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods; D014025:Titanium / Q000737:chemistry / Q000528:radiation effects
D018020:Lithium Compounds; C027651:lithium fluoride; D014025:Titanium; D008274:Magnesium; D005459:Fluorides