Development of the new type ion engine using a reflected-type negative ion source

2014 Fiscal Year Final Research Report

• Project/Area Number: 24654187
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Plasma science
• Research Institution: Tohoku University
• Principal Investigator: ANDO Akira 東北大学, 工学(系)研究科(研究院), 教授 (90182998)
• Co-Investigator(Kenkyū-buntansha): MORI Yoshiharu 京都大学, 原子力実験所, 教授 (30124176)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: イオン源

Outline of Final Research Achievements

The main objective of this research is the development of the ion-engine using the reflected-type negative ion source. The experiments were performed in our previously-developed RF ion source and the extraction of the negative ion beam from the source was tested. The acceleration electrodes consist of a molybdenum plasma grid, cupper extraction and acceleration grids. The extraction and acceleration voltage can be applied to 10 kV and 20 kV, respectively. The results show that the ratio of the negative ion in the extracted beam can be changed by the extraction voltage and it reaches about 10%. In addition, the arrangement of the cusp magnetic field around the source improves the performance of the negative ion source.

Free Research Field

プラズマ科学