| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Outline of Final Research Achievements |
When a high-intensity laser is focused on the thin film, a strong electric field reaching a few million volts per micron is generated by the interaction of the laser electromagnetic field and the thin-film plasma. This electric field accelerates protons up to a few million electron volts. At the same time, a killotesla-class strong magnetic field is expected to be induced by the flow of electrons. We aimed to demonstrate nuclear spins of accelerated protons are polarized by the magnetic field.
In experiments with the world's highest intensity laser (LFEX), protons were successfully accelerated up to 50 million electron volts, which was analyzed by the ion-energy spectrometer developed in this study. However, nuclear spin polarization has not been demonstrate. We continue the investigation.
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