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arXiv · 1308.2073

Detection of Alpha Particles and Low Energy Gamma Rays by Thermo-Bonded Micromegas in Xenon Gas

Yuehuan Wei·Liang Guan·Zhiyong Zhang·Qing Lin·Xiaolian Wang·Kaixuan Ni·Tianchi Zhao
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Abstract

Micromegas is a type of micro-pattern gaseous detector currently under R&D for applications in rare event search experiments. Here we report the performance of a Micromegas structure constructed with a micromesh thermo-bonded to a readout plane, motivated by its potential application in two-phase xenon detectors for dark matter and neutrinoless double beta decay experiments. The study is carried out in pure xenon at room temperature. Measurements with alpha particles from the Americium-241 source showed that gas gains larger than 200 can be obtained at xenon pressure up to 3 atm. Gamma rays down to 8 keV were observed with such a device.

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Yuehuan Wei, Liang Guan, Zhiyong Zhang, Qing Lin, Xiaolian Wang, Kaixuan Ni, Tianchi Zhao. 2013-08-09. Detection of Alpha Particles and Low Energy Gamma Rays by Thermo-Bonded Micromegas in Xenon Gas. https://doi.org/10.1109/tns.2013.2265018

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