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Journal of Environmental Pathology, Toxicology and Oncology
Factor de Impacto: 1.625 Factor de Impacto de 5 años: 1.63 SJR: 0.402 SNIP: 0.613 CiteScore™: 2.3

ISSN Imprimir: 0731-8898
ISSN En Línea: 2162-6537

Journal of Environmental Pathology, Toxicology and Oncology

DOI: 10.1615/JEnvironPatholToxicolOncol.v28.i1.70
pages 63-73

Correlation of FBX Dosimeter and Micronucleus Assay in Radiation Dosimetry of Gamma Chambers

Manjoor Ali
Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai - 400085, India
Prabha Tiwari
Radiological Physics and Advisory Division, Bhabha Atomic Research Centre, Mumbai - 400085, India
Amit Kumar
Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
Kaushala Prasad Mishra
Department of Life Sciences, University of Mumbai, Mumbai, India; Nehru Gram Bharati University, Allahabad, UP, India; Foundation for Education and Research, India and BM International Research Centre, Mumbai, India
Badri Narain Pandey
Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, India

SINOPSIS

The aim of the present study is to determine the dose distribution in gamma irradiation chambers by chemical dosimetry and to establish its correlation with biological dosimetry. The dose-distribution studies of these two gamma chambers show that compared to the center point of the chambers, the dose rate was 17%−22% higher at the circumference. Moreover, the dose rate was 12%−18% lower at the bottom and top positions compared to the center point. It was interesting to observe that the dose rate determined by chemical dosimetry was well correlated with the number of micro-nucleus (MN) formations at different positions of the chamber. Our results suggest that the formation of the single MN/cell was better correlated with the dose rate than the double MN/cell, suggesting that the number of single MN/cells could be better biomarkers for determining the dose rate. These results provide a correlation between chemical and biological dosimetry, which may have relevance in the development of better bioassay techniques for radiation exposure.


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