Investigations of plasma with multi-phase matters produced by high heat flux pulsed plasmas and its heat mitigation effects
| Project/Area Number |
26400535
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Plasma science
|
|---|
| Research Institution | University of Hyogo |
|---|
Principal Investigator |
KIKUCHI YUSUKE 兵庫県立大学, 工学研究科, 准教授 (00433326)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
永田 正義 兵庫県立大学, 工学研究科, 教授 (00192237)
福本 直之 兵庫県立大学, 工学研究科, 准教授 (90275305)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
YABUUCHI TOSHIKI 大阪大学, 大学院工学研究科, 助教 (20397772)
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
|---|
| Keywords | 重相構造プラズマ / 磁化プラズマガン / 高熱流パルスプラズマ / プラズマ材料相互作用 / ELM / 蒸気遮蔽効果 / プラズマガン / パルス熱負荷 / ダイバータ / タングステン |
|---|
| Outline of Final Research Achievements |
Energy transfer processes on plasma with multi-phase matters, in which solid, liquid, vapor, and plasma phase simultaneously appear in a narrow space, have been studied using a magnetized coaxial plasma gun and a steady state/pulse combined plasma irradiation device. The absorbed energy density was measured with calorimeters having heat receiving materials of aluminum (Al) and tungsten (W). As a result, the absorbed energy on the W material was ~70% of that in the incident helium (He) pulsed plasma, whereas only ~20% of the plasma energy was absorbed on the Al material. Al layer formation was identified with a high-speed camera with a bandpass filter of 394 nm, and dynamic behaviors of Al neutral and He ion emissions were revealed using a time-resolved multichannel spectroscopy.
|
Report
(4 results)
Research Products
(42 results)
-
-
-
-
-
-
-
-
-
[Presentation] Plasma-vapor mixed layer formation and its effects on energy transfer processes from ELM-like pulsed plasma heat loads to tungsten materials2016
Author(s)
Y. Kikuchi, I. Sakuma, W. Isono, T. Nakazono, M. Nakane, N. Fukumoto, M. Nagata, T.W. Morgan, K. Bystrov, K. Ibano, Y. Ueda
Organizer
22nd International Conference on Plasma Surface Interactions in Controlled Fusion Devices
Place of Presentation
ローマ（イタリア）
Year and Date
2016-05-30
Related Report
Int'l Joint Research / Invited
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Vapor shielding effects on tungsten surface damage exposed to plasma-gun generated ELM-like transient loads2015
Author(s)
Y. Kikuchi, I. Sakuma, Y. Asai, K. Onishi, W. Isono, T. Nakazono, M. Nakane, D. Sato, F. Domon, N. Ohno, N. Fukumoto, M. Nagata
Organizer
15th International Conference on Plasma Facing Materials & Components for Fusion Applications
Place of Presentation
エクサンプロヴァンス（フランス）
Year and Date
2015-05-18
Related Report
Int'l Joint Research / Invited
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Dual plasma gun experiments for the study of vapor shielding2014
Author(s)
Y. Kikuchi, I. Sakuma, Y. Asai, K. Onishi, W. Isono, T. Nakazono, M. Nakane, D. Sato, F. Domon, N. Ohno,
Organizer
20th ITPA SOL/Divertor Physics Meeting
Place of Presentation
プラハ（チェコ）
Year and Date
2014-10-20 – 2014-10-23
Related Report
-
-
-
-
[Presentation] Surface modifications on toughened, fine-grained, recrystallized tungsten with repetitive ELM-like pulsed plasma irradiation2014
Author(s)
Y. Kikuchi, I. Sakuma, Y. Kitagawa, Y. Asai, K. Onishi, N. Fukumoto, M. Nagata, Y. Ueda, H. Kurishita
Organizer
21st International Conference on Plasma Surface Interactions in Controlled Fusion Devices
Place of Presentation
石川県立音楽堂（石川県金沢市）
Year and Date
2014-05-26 – 2014-05-30
Related Report
-
