AXEL: High pressure xenon gas Time Projection Chamber for neutrinoless double beta decay search

[摘要] AXEL is a high pressure xenon gas TPC detector being developed for neutrinoless double-beta decay search. We use proportional scintillation mode with a new electroluminescence light detection scheme to achieve very high energy resolution with a large detector. The detector has a capability of tracking which can be used reduce background. The project is in a R&D phase, and we report current status of our prototype chamber with 10 L and 8 bar Xe gas. We also present the results of the photon detection efficiency measurement and the linearity test of silicon photomultiplier(SiPM).

[发布机构] Kyoto University, Oiwake-cho, Sakyo-ku, Kyoto-shi, Kyoto-fu, Japan^1

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Electroluminescence lights;High pressure xenon;Large detectors;Neutrinoless double-beta decays;Photon detection efficiency;Silicon photomultiplier;Time projection chambers;Very high energies