| Budget Amount *help |
¥48,620,000 (Direct Cost: ¥37,400,000、Indirect Cost: ¥11,220,000)
Fiscal Year 2014: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2013: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2012: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2011: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
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| Outline of Final Research Achievements |
A compact power reception and conversion system was studied for wireless power transfer using a high power-density millimeter-wave beam. An incident beam was expanded and then concentrated using a tapered-tube concentrator and beam acquisition efficiency of higher than 90% was achieved. Next, a discharge experiment was conducted by coupling above system with a high power gyrotron. As a result, detonation was successfully driven in the detonation tube. In addition, we proposed a new model in which the critical field for ionization is determined by accumulated electron heating. In simulation, we found nested fine filaments expanding in the electric field direction inside of a primary filament propagating parallel to the incident beam.
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