| Project/Area Number |
20740138
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
|---|
| Research Institution | Okayama University |
|---|
Principal Investigator |
FUKUMI Atsushi Okayama University, 理学部, 助教 (40426656)
|
|---|
| Project Period (FY) |
2008 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Keywords | 素粒子(実験) / ニュートリノ / 原子分光 / レーザー / 超放射 / ニュートリノ質量 / 原子物理 / ニュートリノ質量分光 / マトリックス単離法 |
|---|
| Research Abstract |
We started a project of neutrino mass spectroscopy by means of the neutrino pair emission from metastable atoms. It is necessary to prepare the initial metastable state rapidly and efficiently. Atomic barium in a heat pipe oven was used as a target. Making use of super-radiance, which is known as a cooperative radiative effect, the population transfer to the matastable state was achieved with the efficiency of 7% and the duration of a few ns.
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