Nuclear analysis of the ITER Cryopump Ports

Fabio Moro, Rosaria Villari, Davide Flammini, Alexander Antipenkov, Matthias Dremel, Bruno Levesy, Michael Loughlin, Rafael Juarez, Lucia Perez, Luigino Petrizzi

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4 Citations (Scopus)

Abstract

The ITER machine will be equipped with 6 torus Cryopumps (TCP) that are positioned in their housings (TCPH) and integrated into the cryostat walls at B1 level in the port cells. A comprehensive nuclear analysis of the Cryopump Ports #4 and #12 has been carried out by means of the MCNP-5 Monte Carlo code in a full 3-D geometry, providing guidelines for the design of the embedded components. Radiation transport calculations have been performed in order to determine the radiation field inside the Lower Ports, up the Port Cell: 3-D neutrons and gamma maps have been provided in order to evaluate the shielding effectiveness of the TCPHs. Nuclear heating induced by neutron and photons have been estimated on the TCP and TCPH to assess the nuclear loads during plasma operations. The shutdown dose rate in the maintenance area of the Lower Ports has been assessed with the Advanced D1S method to verify the design limits.
Original languageEnglish
Pages (from-to)1561 - 1565
Number of pages5
JournalFusion Engineering and Design
Volume98-99
DOIs
Publication statusPublished - 1 Oct 2015
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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