Proliferation resistance assessment of a typical pebble bed reactor fuel

Dany Mulyana, Sunil S. Chirayath

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A study is carried out to assess the proliferation resistance (PR) of pebble bed reactor (PBR) fuel using two methods. The Proliferation Resistance Analysis and Evaluation Tool for Observed Risk (PRAETOR) code is the first method, which employs 68 attributes (intrinsic and extrinsic) to assess the overall PR. Forty-six uranium and plutonium diversion scenarios are analyzed with initial 235U enrichments from 4.95 to 17 wt% and a fuel burnup varying from 5 to 90 GWd/MTU. PRAETOR code gave same PR values (within 1%) for all the 46 scenarios and not able to distinguish between the uranium and plutonium diversion scenarios. A second PR analysis method employing only four attributes is developed and analyzes the intrinsic PR of plutonium spheres, which is able to distinguish the intrinsic PR of all the 23 plutonium diversion scenarios analyzed. Data needed for PR assessments are generated using neutronics simulations of PBR fuel irradiation.

Original languageEnglish
Article number108769
JournalAnnals of Nuclear Energy
Volume165
DOIs
StatePublished - Jan 2022
Externally publishedYes

Funding

This research is part of a graduate degree study partially funded by the Ministry of Research and Technology of Indonesia through a RisetPro fellowship and does not receive any specific grant from funding agencies in the commercial or not-for-profit sectors.

FundersFunder number
Ministry of Research and Technology of Indonesia

    Keywords

    • Multi-attribute utility analysis
    • PRAETOR
    • Pebble bed reactor
    • Proliferation resistance
    • Spent fuel diversion

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