High-heat-flux testing of irradiated tungsten-based materials for fusion applications using infrared plasma arc lamps [electronic resource].
- Washington, D.C. : United States. Dept. of Energy. Office of Science, 2014. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- pages 394-404 : digital, PDF file
- Additional Creators:
- Oak Ridge National Laboratory, United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Testing of advanced materials and component mock-ups under prototypical fusion high-heat-flux conditions, while historically a mainstay of fusion research, has proved to be quite challenging, especially for irradiated materials. A new high-heat-flux–testing (HHFT) facility based on water-wall plasma arc lamps (PALs) is now introduced for materials and small-component testing. Two PAL systems, utilizing a 12 000°C plasma arc contained in a quartz tube cooled by a spiral water flow over the inside tube surface, provide maximum incident heat fluxes of 4.2 and 27 MW/m<sup>2</sup> over areas of 9×12 and 1×10 cm<sup>2</sup>, respectively. This paper will present the overall design and implementation of a PAL-based irradiated material target station (IMTS). The IMTS is primarily designed for testing the effects of heat flux or thermal cycling on material coupons of interest, such as those for plasma-facing components. Temperature results are shown for thermal cycling under HHFT of tungsten coupon specimens that were neutron irradiated in HFIR. Finally, radiological surveys indicated minimal contamination of the 36×36×18 cm test section, demonstrating the capability of the new facility to handle irradiated specimens at high temperature.
- Published through SciTech Connect., 11/01/2014., "AT2030110", "ERAT725", Fusion Science and Technology 66 3 ISSN 1536-1055 AM, and Adrian S. Sabau; Evan K. Ohriner; Jim Kiggans; Charles R. Schaich; Yoshio Ueda; David C. Harper; Yutai Katoh; Lance L. Snead; Thak S. Byun.
- Funding Information:
- AC05-00OR22725 and C05-00OR22725
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