Measurements of gamma dose and thermal neutron fluence in phantoms exposed to a BNCT epithermal beam with TLD-700

G. Gambarini, D. Magni, V. Regazzoni, M. Borroni, M. Carrara, E. Pignoli, J. Burian, M. Marek, V. Klupak, L. Viererbl

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)422-427
Number of pages6
JournalRadiation Protection Dosimetry
Volume161
Issue number1-4
DOIs
Publication statusPublished - 2014

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Radiation
  • Public Health, Environmental and Occupational Health
  • Medicine(all)

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