Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 29 / Number 4 / Pages 571-583
Hans-Dieter Falter, Dragoslav Ciric, Andrea Celentano, Christopher M. Ibbott, Michael J. Watson, Masanori Araki, Satoshi Suzuki, Kazuyoshi Sato
Fusion Science and Technology / Volume 29 / Number 4 / Pages 571-583
Format:electronic copy (download)
Two vapotrons from the Joint European Torus (JET) actively cooled divertor design have been fitted by the Japan Atomic Energy Research Institute with unidirectional high-conductivity carbon-fiber-composite 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 as follows: water inlet temperature, 15 to 20°C; average water pressure in the component, 0.4 and 0.69 MPa; flow velocity, 6.9 and 7.5 m/s.
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