Home >

news Help

Publication Information


Title
Japanese:発光分光計測法を用いた水中アークプラズマの諸特性測定 
English:Measurement of Underwater Arc Plasma by Optical Emission Spectroscopy 
Author
Japanese: 鈴木龍二郎, 中西 諒, 根津 篤, 森 伸介, 赤塚 洋.  
English: Ryujirou Suzuki, Ryo Nakanishi, Atsushi Nezu, Shinsuke Mori, Hiroshi Akatsuka.  
Language Japanese 
Journal/Book name
Japanese:第36 回 プラズマプロセシング研究会／ 第31 回 プラズマ材料科学シンポジウム プロシーディングス 
English:Proceedings of 36th Symposium on Plasma Processing (SPP36) / The 31th Symposium on Plasma Science for Materials (SPSM31) 
Volume, Number, Page         pp. 62-63
Published date Jan. 15, 2019 
Publisher
Japanese:SPP36/SPSM31実行委員会 
English:Executive Committee of SPP36/SPSM31 
Conference name
Japanese:第36 回 プラズマプロセシング研究会／ 第31 回 プラズマ材料科学シンポジウム 
English:36th Symposium on Plasma Processing (SPP36) / The 31th Symposium on Plasma Science for Materials (SPSM31) 
Conference site
Japanese:高知 
English:Kochi 
Official URL http://annex.jsap.or.jp/plasma/PE_files/SPP36/SPP36SPSM31_program1225_OralPoster.pdf
 
Abstract Application of arc plasmas generated in water is expected for decommissioning of Fukushima No.1 nuclear power plant reactors. Characteristics of such plasmas are studied in detail in this report. The plumes of the arc plasma jets are measured when the DC arc current is set from 40 A to 200 A. The excitation temperature and the electron density are determined by optical emission spectroscopy measurement. It is found that the excitation temperature increases from about 6500 K to over 7000 K, and the electron density also increases in the order of 1016 cm-3 as the current increases. The temperature and density of arc plasmas generated in water are both higher than those of gas-phase arc plasmas.

©2007 Tokyo Institute of Technology All rights reserved.