Dose distributions in phantoms irradiated in thermal columns of two different nuclear reactors

Grazia Gambarini, S. Agosteo, S. Altieri, S. Bortolussi, M. Carrara, S. Gay, E. Nava, C. Petrovich, G. Rosi, M. Valente

Research output: Contribution to journalArticlepeer-review

Abstract

In-phantom dosimetry studies have been carried out at the thermal columns of a thermal- and a fast-nuclear reactor for investigating: (a) the spatial distribution of the gamma dose and the thermal neutron fluence and (b) the accuracy at which the boron concentration should be estimated in an explanted organ of a boron neutron capture therapy patient. The phantom was a cylinder (11 cm in diameter and 12 cm in height) of tissue-equivalent gel. Dose images were acquired with gel dosemeters across the axial section of the phantom. The thermal neutron fluence rate was measured with activation foils in a few positions of this phantom. Dose and fluence rate profiles were also calculated with Monte Carlo simulations. The trend of these profiles do not show significant differences for the thermal columns considered in this work.

Original languageEnglish
Pages (from-to)640-644
Number of pages5
JournalRadiation Protection Dosimetry
Volume126
Issue number1-4
DOIs
Publication statusPublished - 2007

ASJC Scopus subject areas

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

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