| Project/Area Number |
08458105
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
プラズマ理工学
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| Research Institution | UNIVERSITY OF TSUKUBA |
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Principal Investigator |
TAMANO Teruo University of Tsukuba, Institute of Physics, Professor, 物理学系, 教授 (80236744)
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| Co-Investigator(Kenkyū-buntansha) |
YASAKA Yasuyoshi Kyoto University, Faculty of Eng., Associate Professor, 工学部, 助教授 (30109037)
TATEMATSU Yoshinori Institute of Physics, Research Associate, 物理学系, 助手 (50261756)
SAITO Teruo Institute of Physics, Associate Professor, 物理学系, 助教授 (80143163)
KIWAMOTO Yasuhito Institute of Applied Physics, Associate Professor, 物理工学系, 助教授 (50018040)
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| Project Period (FY) |
1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥7,900,000 (Direct Cost: ¥7,900,000)
Fiscal Year 1996: ¥7,900,000 (Direct Cost: ¥7,900,000)
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| Keywords | NUCLEAR FUSION / PLASMA ENERGY FLOW / PARALLEL HEAT FLUX / RADIAL HEAT FLUX / INFRA-RED IMAGING / CALORIMETRY / MAGNETIC MIRROR |
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| Research Abstract |
Our achievement in the academic year of 1996 is summarized as follows.
[1] Diagnostic innovation :
We have established a generalized scheme for optically determining the correct temperature of gray materials placed in atmospheres different from that of an infra-red camera which implicitly requires that the ambient temperatures are equal to that of the camera.
The new scheme leads to the true temperature of the plasma-facing gray objects whose infra-red images are transferred through several optical components to the camera that displays an apparent temperature distribution strongly affected by emissivities, reflectivities, and transmittances of the components so that erronious results are obtained without the correction.
This achievement is published in Rev.Sci.Instrum. (1997).
[2] Experimental findings :
(1) The radial energy flux is observed to reach dominantly to the coil wall that is the nearest to the plasma edge. It indicates that the radial flux is carried by electrons bouncing fast axially in the mirror field and kicked radially by a heating wave when passing through the resonance layr.
(2) Both the radial flux and the axial flux of the plasma energy increase almost proportionally to the heating power in the plug. This observation indicates that the mechanism of potential formation in the plasma is closely linked with the 3-dimensional transport of electrons under heating waves.
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