Method of thermoluminescent measurement of radiation doses from micrograys up to a megagray with a single LiF:Mg,Cu,P detector.
On the basis of the newly discovered behaviour of LiF:Mg,Cu,P detectors at high and ultra-high doses, a new method of thermoluminescence (TL) measurement of radiation doses ranging from micrograys up to a megagray, has been recently developed at the Institute of Nuclear Physics (IFJ). The method is based on the relationship between the TL signal, integrated in the given temperature range and dose. It is quantified by a parameter called the 'ultra-high temperature ratio'. It has been demonstrated that this new method can measure radiation doses in the range of about 1 µGy to 1 MGy, using a single LiF:Mg,Cu,P detector. This method was recently successfully blindly tested for 10 MeV electrons up to doses of 200 kGy. It can be used for dosimetry in high-energy accelerators, especially in the Large Hadron Collider at CERN, and has great potential for accident dosimetry in particular.
Institute of Nuclear Physics, IFJ, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland. barbara.obryk@ifj.edu.pl
Barbara
B
Obryk
Pawel
P
Bilski
Pawel
P
Olko
D002138:Calibration; D003300:Copper / Q000032:analysis*; D004307:Dose-Response Relationship, Radiation; D004583:Electrons; D005459:Fluorides / Q000032:analysis*; D006801:Humans; D018020:Lithium Compounds / Q000032:analysis*; D008274:Magnesium / Q000032:analysis*; D015233:Models, Statistical; D010315:Particle Accelerators; D010758:Phosphorus / Q000032:analysis*; D018788:Radioactive Hazard Release; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods; D013696:Temperature; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods
D018020:Lithium Compounds; C027651:lithium fluoride; D010758:Phosphorus; D003300:Copper; D008274:Magnesium; D005459:Fluorides