American Nuclear Society

Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 60 / Number 4

A Study on Carbon and Hydrogen Co-Deposition Behavior in Methane-Hydrogen Mixed Plasma

S. Kasahara, K. Katayama, T. Fujiki, S. Ishikawa, S. Fukada, M. Nishikawa

Fusion Science and Technology

Volume 60 / Number 4 / November 2011 / Pages 1487-1490


Member Price:$27.00
Member Savings:$3.00

Tritium retention in carbon deposition is known to be a serious problem in a fusion reactor. In the present study, co-deposition behavior of carbon and hydrogen was investigated by using methane-hydrogen mixed plasma. It has been shown that formation of the carbon deposition was suppressed at temperatures higher than 150 °C. However, a small amount of carbon deposition was observed even at a high temperature of 300 °C. From mass balance calculation, it was estimated that a majority of carbon decomposed in the plasma was transported to the vacuum pumping system.

Questions or comments about the site? Contact the ANS Webmaster.