Performance of GEM with deuterium gas and GEM with glass insulator

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A new type of GEM with glass insulator, named as Glass GEM, has been developed by HOYA Corp. and SiEnergy Co. Ltd. Basic properties of the gas gain under Ne 90 %+CF4 10 % and Ne 80 %+CO2 20 % and short-term gain stability are reported in this article. We also developed a operation of 100-μm LCP-GEM with deuterium gas. The operation with deuterium gas is required by the reaction study of unstable nuclei, in which the deuteron induced reactions such as (d,d') and (d,2p) are used to study the giant resonances. The gain measurement of 100-Mm with deuterium gas was performed.

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