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O
ceramics from precursor polymers by radiation curingWach, R.; Sugimoto, Masaki; Yoshikawa, Masahito
Key Engineering Materials, 317-318, p.573 - 576, 2006/08
no abstracts in English
Takahashi, Koji; Illy, S.*; Heidinger, R.*; Kasugai, Atsushi; Minami, Ryutaro; Sakamoto, Keishi; Thumm, M.*; Imai, Tsuyoshi
Fusion Engineering and Design, 74(1-4), p.305 - 310, 2005/11
Times Cited Count：13 Percentile：66.34(Nuclear Science & Technology)A new diamond window with the copper-coated edge for an EC launcher is developed. The diamond window is designed to cool its disk edge. Since Cu is coated at the entire edge, ingress of cooling water into a transmission line in case of failure on the edge is negligible. In addition, corrosion of Al blaze between the edge and the Inconel cuffs can be avoided. A 170GHz, RF transmission experiment equivalent to a MW-level transmission was carried out to investigate the capability of the edge cooling. The transmission power and pulse are 55kW and 3sec, respectively. Temperature increase was 45
C and alomost became constant. Thermal calculation with tan
of 4.4
10
and thermal conductivity of 1.9kW/m/K agrees with the experiment. Since tan of the diamond is much higher than the actual one (tan=210
), the temperature increase corresponds to that of 1MW transmission. It concludes that the Cu coating dose not degrade the edge cooling capability and improves the reliability of the diamond window.
O ceramics from precursor polymers by radiation curingWach, R.; Sugimoto, Masaki; Lam, N. D.; Yoshikawa, Masahito
Proceedings of 8th SPSJ International Polymer Conference (IPC 2005) (CD-ROM), 60 Pages, 2005/07
no abstracts in English
M.Z.Hasan*; Kunugi, Tomoaki; Seki, Masahiro; Yokokawa, Mitsuo; Ise, Hideo*; ;
Fusion Technology, 19, p.908 - 912, 1991/05
no abstracts in English
