| Project/Area Number |
25249134
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Nuclear fusion studies
|
|---|
| Research Institution | National Institute for Fusion Science |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TSUMORI Katsuyoshi 核融合科学研究所, ヘリカル研究部, 准教授 (50236949)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
IKEDA Katsunori 核融合科学研究所, ヘリカル研究部, 助教 (20321614)
NAKANO Haruhisa 核融合科学研究所, ヘリカル研究部, 助教 (90442524)
KISAKI Masashi 核融合科学研究所, ヘリカル研究部, 助教 (70598945)
NAGAOKA Kenichi 核融合科学研究所, ヘリカル研究部, 准教授 (20353443)
OSAKABE Masaki 核融合科学研究所, ヘリカル研究部, 教授 (90280601)
HATAYAMA Akiyoshi 慶応義塾大学, 理工学部, 教授 (10245607)
|
|---|
| Research Collaborator |
TOKUZAWA Tokihiko 核融合科学研究所, ヘリカル研究部, 准教授 (90311208)
|
|---|
| Project Period (FY) |
2013-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥36,400,000 (Direct Cost: ¥28,000,000、Indirect Cost: ¥8,400,000)
Fiscal Year 2015: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2014: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
Fiscal Year 2013: ¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
|
|---|
| Keywords | 負イオン源 / 中性粒子ビーム入射 / プラズマ加熱 / イオン性プラズマ / 負イオンダイナミクス / 磁場閉じ込め核融合 / 負イオン / NBI / ペアイオンプラズマ / 中性粒子入射加熱装置 / イオン引き出し / 仕事関数 |
|---|
| Outline of Final Research Achievements |
The investigation of negative ion extraction mechanism in the negative ion source was performed, and it was found; 1) externally applied electric field can penetrate deeply inside the extraction region, 2) negative ions are transported from the plasma grid (PG) toward driver region, 3) negative ions are extracted through whole region in the extraction region, 4) electron density and negative ion density near the PG responds to the extraction voltage, and 3D magnetic field structure plays a role for particle dynamics. These observations contribute to reveal the negative ion dynamics for the first time.
|
