2013 Fiscal Year Final Research Report
Discovery of Beta Decay for Neutral Kaon
| Project/Area Number |
23654087
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kyoto University |
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Principal Investigator |
NANJO Hajime 京都大学, 理学(系)研究科(研究院), 助教 (40419445)
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| Project Period (FY) |
2011 – 2013
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| Keywords | KLベータ崩壊 / thin gap chamber |
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| Research Abstract |
A detector which enables the KL beta decay search experiment has been developed.A thin gap chamber is constructed with cathodes of 12-um thick aluminized mylar film
and a 1.6-mm-thick gas volume of CF4 and n-pentane gas mixture. In spite of its thickness of 5mg/cm2, it can be operated in high-flux neutron and gamma beam line with 99% charged particle efficiency. It was tested in the actual high intensity KL beam line and was proved to be operated stably in it with an allowable hit rate.
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