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Автор Paul N Mobit
Автор Alan E Nahum
Автор Philip Mayles
Дата выпуска 1996-06-01
dc.description The energy correction factor of LiF thermoluminescent dosemeters (TLDs) calibrated in Co-60 -rays and used for measurements in megavoltage electron beams has been determined experimentally and theoretically using Monte Carlo simulations. The experiments show that the energy correction factor of 1 mm thick TLD-100 has an average for both rods and chips which varies from (1 SD) for 4 MeV electron beams to (1 SD) for 20 MeV electron beams for measurement performed at in PMMA (Perspex). The results of the Monte Carlo simulations were within 0.6% of the experimental results and ranged from (1 SD) for 2 MeV electrons to (1 SD) for 20 MeV electron beams. There was no significant difference in the energy correction factors of LiF TLDs irradiated in PMMA or water by Monte Carlo simulation and experiments. Differences in the energy correction factors between rods and chips of the same thickness were negligible both in the experiments and in Monte Carlo calculation. When the diameter of the LiF TLD micro-rod was increased from 1 to 5 mm, the simulated energy correction factors increased by as much as 5% over this energy range. The energy correction factors changed by up to 4% for irradiation of TLD at depths other than at for a 5 MeV mono-energetic electron beam.
Формат application.pdf
Издатель Institute of Physics Publishing
Название The energy correction factor of LiF thermoluminescent dosemeters in megavoltage electron beams: Monte Carlo simulations and experiments
Тип paper
DOI 10.1088/0031-9155/41/6/003
Electronic ISSN 1361-6560
Print ISSN 0031-9155
Журнал Physics in Medicine and Biology
Том 41
Первая страница 979
Последняя страница 993
Аффилиация Paul N Mobit; Joint Department of Physics, Institute of Cancer Research and Royal Marsden NHS Trust, Sutton SM2 5PT, UK
Аффилиация Alan E Nahum; Joint Department of Physics, Institute of Cancer Research and Royal Marsden NHS Trust, Sutton SM2 5PT, UK
Аффилиация Philip Mayles; Joint Department of Physics, Institute of Cancer Research and Royal Marsden NHS Trust, Sutton SM2 5PT, UK
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