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Author McSmith, M.D. ♦ Bowers, D.A. ♦ Haines, J.R. ♦ Sapp, J.W. ♦ Williams, F.R.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1991
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword Plasma density ♦ Plasma materials processing ♦ Tiles ♦ Thermal stresses ♦ Cooling ♦ Annealing ♦ Composite materials ♦ Organic materials ♦ Heating ♦ Lamination
Abstract For its primary mode of operation, the Burning Plasma Experiment (BPX) uses a double-null divertor for the removal of energy and charged particles from the plasma. Due to the high-power densities and the use of inertial cooling, high-thermal-conductivity annealed pyrolytic graphite (PG) and 1D carbon fiber composites are the two leading candidates for the plasma facing material. To maximize the power handling capability of the divertor, a tile thickness (normal to the plasma facing surface) greater than 30 mm, essentially infinitely thick for the burn durations being considered for BPX, is used and the separatrix is swept across the divertor surface to spread the heating over as large an area as possible. In the baseline divertor design concept, an arrangement of 546 modules forms a continuous surface, at the top and bottom, around the toroidal circumference of the vacuum vessel. Each divertor module consists of PG tiles housed in a metallic support frame which mounts to the vacuum vessel wall at four locations. The PG tiles have a c-direction thickness (normal to the PG tile laminations) of 6.35 mm and are oriented poloidally to minimize the eddy current forces induced during disruptions and to accommodate the thermally induced stresses during normal operation.<<ETX>>
Description Author affiliation: McDonnell Douglas Missile Syst. Co., St. Louis, MO, USA (McSmith, M.D.; Bowers, D.A.; Haines, J.R.; Sapp, J.W.; Williams, F.R.)
ISBN 0780301323
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1991-09-30
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 336.02 kB
Page Count 4
Starting Page 436
Ending Page 439

Source: IEEE Xplore Digital Library