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Title: Development and tests of molybdenum armored copper components for MITICA ion source

In order to prevent detrimental material erosion of components impinged by back-streaming positive D or H ions in the megavolt ITER injector and concept advancement beam source, a solution based on explosion bonding technique has been identified for producing a 1 mm thick molybdenum armour layer on copper substrate, compatible with ITER requirements. Prototypes have been recently manufactured and tested in the high heat flux test facility Garching Large Divertor Sample Test Facility (GLADIS) to check the capability of the molybdenum-copper interface to withstand several thermal shock cycles at high power density. This paper presents both the numerical fluid-dynamic analyses of the prototypes simulating the test conditions in GLADIS as well as the experimental results.
Authors:
; ; ;  [1] ; ;  [2]
  1. Consorzio RFX, Corso Stati Uniti, 4, I-35127 Padova (Italy)
  2. Max-Planck-Institut für Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching (Germany)
Publication Date:
OSTI Identifier:
22482946
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 87; Journal Issue: 2; Other Information: (c) 2015 EURATOM; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BEAMS; COPPER; DIVERTORS; EROSION; EXPERIMENTAL DATA; HEAT FLUX; HYDROGEN IONS; ION SOURCES; ITER TOKAMAK; MOLYBDENUM; POWER DENSITY; SIMULATION; TEST FACILITIES; THERMAL SHOCK