Vacuum Breakdown Characteristics for long gap and large surface area electrodes and investigation of the electrode surface condition

Research Project

Project/Area Number	22686029
Research Category	Grant-in-Aid for Young Scientists (A)
Allocation Type	Single-year Grants
Research Field	Power engineering/Power conversion/Electric machinery
Research Institution	Saitama University
Principal Investigator	YAMANO Yasushi 埼玉大学, 理工学研究科, 准教授 (30323380)
Project Period (FY)	2010 – 2012
Project Status	Completed (Fiscal Year 2012)
Budget Amount *help	¥25,350,000 (Direct Cost: ¥19,500,000、Indirect Cost: ¥5,850,000) Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000) Fiscal Year 2011: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000) Fiscal Year 2010: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Keywords	電気絶縁 / 真空 / 長ギャップ / 表面分析 / 大面積 / 長ｷﾞｬｯﾌﾟ
Research Abstract	Vacuum breakdown characteristics for long gap and large surface area electrodes under uniform electric field condition were investigated. Sample electrodes have different surface conditions which are machined by a diamond cutting tool or normal cutting tool. Another electrode is processed by the chemical polishing method. These electrode surfaces are analyzed by the XPS (X-ray Photoelectron Spectroscopy). We obtained the influence of the surface condition on the vacuum breakdown characteristics for large sized electrode and long gap distance. And the area effect on thebreakdown voltage for the copper electrode gap in vacuum was investigated.