Google+ Use of a Microsphere Fingerprint for Identity Verification of Fuel Pebbles in a Pebble-fueled HTGR | Educating the Next Generation of Leaders in Nuclear Security Sciences
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Citation:

E.T. Gitau and W.S. Charlton, "Use of a Microsphere Fingerprint for Identity Verification of Fuel Pebbles in a Pebble-fueled HTGR," JNMM 40(2), 19-25 (2012).

Abstract:

The continued development of a commercial-scale pebble-fueled high-temperature  gas-cooled reactor (PF-HTGR) in the People's Republic of China (PRC) will lead to an exportable design within the next fifteen years.  The potential export of the design has renewed the need for a safeguards system capable of adequately accounting for the fuel present at a PF-HTGR facility.  Previously proposed methods utilized extensive redundant containment and surveillance (C/S) systems or some combination of item- and bulk-type material accountancy that are incapable of restoring continuity of knowledge in the event of a failure of the C/S or accountancy systems.  Using a recently proposed verification system based on the use of a microsphere fingerprint in each fuel pebble, the uncertainties in the material unaccounted for (MUF) in potential material accountancy systems were explored for an abrupt and protracted diversion from a hybrid safeguards approach and a new item-type safeguards approach.


Associated Project(s):

  • Safeguards System Concept for Pebble-fueled High Temperature Gas-Cooled Reactor

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