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Transmutation of nuclear waste with a low-aspect-ratio tokamak neutron source

  • Bong Guen Hong
  • , Se Youn Moon*
  • *Corresponding author for this work
  • Jeonbuk National University

Research output: Contribution to journalJournal articlepeer-review

Abstract

The transmutation characteristics of transuranics (TRUs) in a transmutation reactor based on a LAR (Low-aspect-ratio) tokamak as a neutron source are investigated. The optimum radial build of a transmutation reactor is found by using a coupled analysis of the tokamak systems and the neutron transport. The dependences of the transmutation characteristics on the aspect ratio A in the range of 1.5 to 2.5 and on the fusion power in the range of 150 to 500 MW are investigated. An equilibrium fuel cycle is developed for effective transmutation, and show that with one unit of the transmutation reactor based on the LAR tokamak producing fusion power in the range of a few hundred MWs, up to 3 PWRs (1.0 GWe capacity) can be supported with a burn-up fraction larger than 50%.

Original languageEnglish
Pages (from-to)1247-1251
Number of pages5
JournalJournal of the Korean Physical Society
Volume65
Issue number8
DOIs
StatePublished - 2014

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • Fusion-driven system
  • LAR tokamak
  • Nuclear waste transmutation

Quacquarelli Symonds(QS) Subject Topics

  • Physics & Astronomy

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