publication . Article . 2013

Radiological characterization of the concrete biological shield of the APSARA reactor

Priya Srinivasan; Panchapakesan Srinivasan; Shibu Thomas; R.K. Gopalakrishnan; A. Goswami;
Open Access English
  • Published: 01 Jan 2013 Journal: Nuclear Technology and Radiation Protection (issn: 1451-3994, Copyright policy)
  • Publisher: VINCA Institute of Nuclear Sciences
The first Indian research reactor, APSARA, was utilized for various R&D programmes from 1956 until its shutdown in 2009. The biological shield of the reactor developed residual activity due to neutron irradiation during the operation of the reactor. Dose rate mapping and in-situ gamma spectrometry of the concrete structures of the reactor pool were carried out. Representative concrete samples collected from various locations were subjected to high-resolution gamma spectrometry analysis. 60Co and 152Eu were found to be the dominant gamma-emitting radionuclides in most of the locations. 133Ba was also found in some of the concrete structures. The separation of 3H ...
free text keywords: decommissioning, bulk waste, gamma spectrometry, liquid scintillation, biological shield, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798, Nuclear Energy and Engineering, Safety, Risk, Reliability and Quality
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