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M. CHERESTES1,* , C. CHERESTES1, M. V. PARASCHIVA1, L. M. CONSTANTINESCU2, C. A. TOMA1, A. LEORDEANU3
Dozimed – Personal Monitoring Service starts to use since 2010 a TLD albedo dosemeter as standard neutron personal dosemeter, consisting of 2 pairs of 6LiF:Mg, Ti-7LiF:Mg, Ti detectors. The main problem in albedo dosimetry is to optimize the readout procedures and to calibrate the dosemeter in the environment of each neutron source by applying survey measurement, phantom calibrations or special field data. All albedo neutron dosimeters are energy-dependent, becoming less sensitive as the energy of the neutrons is increased. In this paper the energy dependence and the effect it has on the evaluation of the dose are discussed. The measurements show the limits imposed by the energy dependence on the evaluation of the dose determined by albedo neutron dosimeters. In most cases evaluation of an individual's dose occurring in a single facility can be reasonably accurate, but it must be known in which facility the person was exposed. The capabilities of TLD albedo dosemeter applied in personnel dosimetry are discussed, with emphasis on the dose range, reproductibility, energy dependence and the detector-to-body distance.
Albedo dosemeters, Radiation protection, Dose assessment, Thermoluminescence dosemeter.
M. CHERESTES, C. CHERESTES, M. V. PARASCHIVA, L. M. CONSTANTINESCU, C. A. TOMA, A. LEORDEANU, New personal dosimetry services in Romania for mixed fields gamma-neutrons using 6LiF:Mg, Ti – 7LiF:Mg, Ti pairs detectors, Optoelectronics and Advanced Materials - Rapid Communications, 4, 11, November 2010, pp.1823-1825 (2010).
Submitted at: Sept. 23, 2010
Accepted at: Nov. 10, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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