| Project/Area Number |
24656556
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear fusion studies
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| Research Institution | The University of Tokyo |
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Principal Investigator |
EJIRI Akira 東京大学, 大学院・新領域創成科学研究科, 准教授 (30249966)
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| Co-Investigator(Renkei-kenkyūsha) |
TAKASE Yuichi 東京大学, 大学院・新領域創成科学研究科, 教授 (70292828)
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| Project Period (FY) |
2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | プラズマ計測 / トムソン散乱 / 高周波立ち上げプラズマ / 球状トカマク / 立ち上げプラズマ / マルチパス |
|---|
| Research Abstract |
In order to apply the Thomson scattering method to very low density plasmas, we have developed an optically trapped multiple-pass Thomson scattering system. Using a high voltage fast MOSFET, a driver for a Pockels cell was assembled, and90-degree rotation of the polarization within 20 ns was achieved. Using an optical arrangement equivalent to the plasma measurement, we detected 9 round trips of a laser pulse. The obtained total power amplification due to the round trips is more than 6. Notethat we inserted a beam sampler for this measurement.
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