Laser isotope separation of Ca

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05101
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: University of Fukui
• Principal Investigator: Niki Hideaki 福井大学, 学術研究院工学系部門, 教授 (00135758)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: レーザー同位体分離 / カルシウム / ニ重ベータ崩壊 / 輻射圧

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%).

Free Research Field

レーザー分光、量子エレクトロニクス