R&amp;D of the heat-resistant LH antenna

Seki, M.; Maebara, S.; Fujii, T.

doi:10.1016/s0920-3796(01)00268-x

Cited by 2 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The tip of the antenna will be subjected to quite large heat and fast particles fluxes and erosion is expected to occur. 11 In the block type ͓Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of cold isostatic pressing graphite module for a heat-resistant lower hybrid current drive antenna

Maebara

Goniche

Kazarian

et al. 2005

Review of Scientific Instruments

View full text Add to dashboard Cite

Development of a plasma facing module using Cold Isostatic Pressing Graphite ͑CIPG͒ was successfully achieved for use in driving a heat-resistant Lower Hybrid Current Drive ͑LHCD͒ antenna. A thin stainless film ͑10 m͒, a molybdenum film ͑10 m͒, and a copper film ͑50 m͒ were overlaid on the CIPG materials, the CIPG surfaces were successfully coated with the Cu-layer by diffusion bonding method. This module whose length is 206 mm, has four waveguides, and a water cooling channel. High rf-power long pulse operations with water cooling were successfully tested up to 250 kW ͑125 MW/ m 2 ͒ / 700 s, a stationary temperature and vacuum pressure was performed. But the maximum rf transmission power was limited to 47 MW/ m 2 for a plasma facing module using Carbon Fiber Composite ͑CFC͒ due to poor Cu-plating, a power density large by more than a factor 2.5 was achieved with the CIPG module. The rf power density which meets the requirement of the rf electric field of 5 kV/ cm for a design of the LHCD antenna in International Thermonuclear Experimental Reactor ͑ITER͒ was successfully performed.

show abstract

“…The tip of the antenna will be subjected to quite large heat and fast particles fluxes and erosion is expected to occur. 11 In the block type ͓Fig. 1.…”

Section: Introductionmentioning

confidence: 99%

“…11 Therefore, Cold Isostatic Pressing Graphite ͑CIPG͒ material was used to obtain a strong adhesion force. This low Z refractory material has also a rather high electrical resistivity reducing the eddy current and the electromagnetic forces in case of disruption.…”

Section: Introductionmentioning

confidence: 99%