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ORIGINAL ARTICLE
Year : 2016  |  Volume : 39  |  Issue : 2  |  Page : 68-74

Development and performance evaluation of HPGe detector-based shadow shield bed whole body counter


1 Radiation Safety Systems Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Maharashtra, India
2 Centre for Design and Manufacture, Bhabha Atomic Research Centre, Trombay, Mumbai, Maharashtra, India

Correspondence Address:
I S Singh
Radiation Safety Systems Division, Bhabha Atomic Research Center, Trombay, Mumbai - 400 085, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-0464.190394

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An HPGe detector-based shadow shield bed whole body counter has been developed for internal contamination monitoring of radiation workers. The system is calibrated for the measurement of internally deposited radionuclides which emits photon energies >100 keV. Its performance characteristics are compared with NaI(Tl) detector-based whole body counter. It is observed that due to superior energy resolution of the HPGe-based system, identification and quantification of internally deposited radionuclides in workers is superior than NaI(Tl) detector-based system. The 40 K contents of 15 persons were measured using this system. It is found that the total body potassium varies from 0.82 gk kg −1 to 2.6 gk kg −1 of the body weight.


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