Published April 2020 | Version v1
Journal article Metadata-only

Influence of embedded boron nitride nanosheets on Fe3+ diffusion in Fricke gel dosimeter and its response to γ rays

Creators

  • 1. Nanjing University of Aeronautics and Astronautics, Nanjing (China). Department of Nuclear Science and Technology, College of Materials Science and Technology
  • 2. Jiangsu Key Laboratory for Biomaterials and Devices, Nanjing (China)

Description

The Fe3+ diffusion in Fricke gel dosimeter, widely used for the measurement of accurate dose distributions in radiotherapy, results in a gradual blurring of the dose pattern with time after irradiation. In order to solve this issue, we embedded Fricke gel dosimeter with boron nitride nanosheets. The results show that the nanosheets-embedded gel dosimeter exhibited lower diffusion rate of Fe3+ ions (0.23 mm2 h-1) and a good response to γ irradiation in UV absorbance spectra. The hydrogen bond barriers between nanosheets and the gels were an important mechanism for the hindrance to Fe3+ diffusion besides the physical blocking of the Fe3+ motion by boron nitride nanosheets. This work will benefit understanding the mechanism for the limit on irons' diffusion and developing three dimensional Fricke gel dosimeter for the measurement of accurate dose distributions. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
324
Journal Issue
1
Journal Page Range
p. 359-365
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
51083067
Subject category
S61: RADIATION PROTECTION AND DOSIMETRY;
Descriptors DEI
BORON NITRIDES; CHEMICAL DOSEMETERS; CORRECTIONS; DIFFUSION; DOSES; GAMMA RADIATION; IRON IONS; RADIOTHERAPY; SHEETS; VERIFICATION
Descriptors DEC
BORON COMPOUNDS; CHARGED PARTICLES; DOSEMETERS; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; IONS; MEASURING INSTRUMENTS; MEDICINE; NITRIDES; NITROGEN COMPOUNDS; NUCLEAR MEDICINE; PNICTIDES; RADIATIONS; RADIOLOGY; THERAPY

Optional Information

Notes
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