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IJPAP Vol.50(11) [November 2012] >


Title: Estimation of the heat generation in vitrified waste product and shield thickness for the transportation of vitrified waste product using Monte Carlo technique
Authors: Deepa, A K
Jakhete, A P
Mehta, Darshit
Singh, Neelima
Kaushik, C P
Singh, Kunjman
Keywords: High level liquid waste
Vitrified waste product
Decay heat
Issue Date: Nov-2012
Publisher: NISCAIR-CSIR, India
Abstract: High Level liquid Waste (HLW) generated during reprocessing of spent fuel contains most of the radioactivity present in entire nuclear fuel cycle resulting in need for its containment, isolation and surveillance for extended periods of time. The major components of HLW are corrosion products, fission products such as 137Cs, 90Sr, 106Ru, 144Ce 125Sb etc, actinides and various chemicals used during reprocessing of HLW. Fresh HLW having an activity concentration of around 100 Ci/l is vitrified into borosilicate glass and contained in canisters which are placed in SS overpacks for better confinement. These overpacks contain about 0.7 million Curies of activity. For transporting the vitrified waste product (VWP), two most important parameters are shield thickness of transportation cask and heat generation in vitrified waste product. This paper describes methodology used in estimation of Pb thickness for transportation cask using the Monte Carlo technique. Using the same technique, heat generation in canister and overpack containing vitrified glass were also estimated.
Page(s): 867-869
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.50(11) [November 2012]

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