2016 Fiscal Year Final Research Report
Configuration study of g-orbital valence nucleons in neutron-deficient nuclei with nuclear laser spectroscopy in superfluid helium
| Project/Area Number |
26707012
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | レーザー核分光 / 核スピン・モーメント / 超流動ヘリウム |
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| Outline of Final Research Achievements |
We aim to measure nuclear spins and electromagnetic moments of low-yield radioactive isotopes (RIs) with our new laser spectroscopy technique using superfluid helium as an effective stopper of energetic RI beam. In the previous experiments, large background signals caused by stray laser light prevented the measurement with low-yield RIs. Our new-developed photodetection system including double-grating monochromators enabled us to reduce the background signals to approximately 1/10000. Using this new photodetection system, we performed a laser spectroscopy experiment with energetic 85Rb beam injected into superfluid helium. We observed double resonance signals with improving the signal-to-noise ratio to two orders of magnitude.
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| Free Research Field |
実験核物理
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