Measurements of gamma dose and thermal neutron fluence in phantoms exposed to a BNCT epithermal beam with TLD-700.
Radiat Prot Dosimetry
; 161(1-4): 422-7, 2014 Oct.
Article
em En
| MEDLINE
| ID: mdl-24435913
ABSTRACT
Gamma dose and thermal neutron fluence in a phantom exposed to an epithermal neutron beam for boron neutron capture therapy (BNCT) can be measured by means of a single thermoluminescence dosemeter (TLD-700). The method exploits the shape of the glow curve (GC) and requires the gamma-calibration GC (to obtain gamma dose) and the thermal-neutron-calibration GC (to obtain neutron fluence). The method is applicable for BNCT dosimetry in case of epithermal neutron beams from a reactor because, in most irradiation configurations, thermal neutrons give a not negligible contribution to the TLD-700 GC. The thermal neutron calibration is not simple, because of the impossibility of having thermal neutron fields without gamma contamination, but a calibration method is here proposed, strictly bound to the method itself of dose separation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dosimetria Termoluminescente
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Terapia por Captura de Nêutron de Boro
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Raios gama
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Neoplasias
Limite:
Humans
Idioma:
En
Revista:
Radiat Prot Dosimetry
Ano de publicação:
2014
Tipo de documento:
Article