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Abstract

Two vapotrons from the JET actively cooled divertor design have been fitted by JAERI with unidirectional high conductivity CFC tiles and have been tested in the JET neutral beam test bed. The test section showed excellent uniformity and accepted power densities up to 30 MW/m2 for equilibrium pulses. The surface temperature was 1100 C at 20 MW/m2. One tile detached at a power density of 25 MW/m2 A total of just under 300 pulses at power densities mostly between 20 and 30 MW/m2 have been fired onto the test sections without additional failure. The hydraulic parameters were: water inlet temperature: 15-20 C, average water pressure in the component: 0.4 and 0.69 Mpa, flow velocity: 6.9 and 7.5 m/s.

Additional information

Authors: FALTER H D, JET Joint Undertaking, Abingdon, Oxon. (GB);CIRIC D, JET Joint Undertaking, Abingdon, Oxon. (GB);CELENTANO A, JET Joint Undertaking, Abingdon, Oxon. (GB);IBBOT C, JET Joint Undertaking, Abingdon, Oxon. (GB);WATSON M, JET Joint Undertaking, Abingdon, Oxon. (GB);ARAKI M, Naka Fusion Research Establishment, NBI Heating Laboratory, Ibaraki-ken (JP);SUZUKI S, Naka Fusion Research Establishment, NBI Heating Laboratory, Ibaraki-ken (JP);SATO K, Naka Fusion Research Establishment, NBI Heating Laboratory, Ibaraki-ken (JP)
Bibliographic Reference: Report: JET-P(95)25 EN (1995) 23 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199511512 / Last updated on: 1995-11-03
Category: PUBLICATION
Original language: en
Available languages: en