TY - JOUR AU - OGAWA, Yoji TI - 206 Observation of Cathode Surface at Arc Ignition T2 - Pre-Prints of the National Meeting of JWS PY - 2005 DA - 2005/08/20 IS - 77 SP - 84-85 UR - http://ci.nii.ac.jp/naid/110004557127/en/ ER -