| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Outline of Final Research Achievements |
Highly concentrated Ca-48 is required for double beta decay experiments in neutrino physics. The natural abundance of Ca-48, however, is as small as 0.187%. Therefore technical development of isotope enrichment of Ca is awaited. In this study a method of laser isotope separation has been investigated. In the experiment Ca atomic beam generated in a vacuum chamber was irradiated with a diode laser light, the wavelength of which was tuned to the resonance frequency of the target isotope and this isotope was selectively deflected from the original atomic beam. It was found that highly concentrated Ca-48(>10%) could be extracted and collected with high collection efficiency(>20%).
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