AXEL—a high pressure xenon gas TPC for neutrinoless double beta decay search

Kiseki Nakamura, Atsuko K. Ichikawa, Tsuyoshi Nakaya, Akihiro Minamino, Sei Ban, Saori Yanagita, Shunsuke Tanaka, Masanori Hirose, Hiroyuki Sekiya, Kota Ueshima, Kentaro Miuchi

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


To search for neutrinoless double beta decay, we have started developing a high pressure xenon gas time projection chamber as the AXEL (A Xenon ElectroLuminescence detector) project since 2014. We proposed a new scheme to measure energy deposit using electroluminescence lights to achieve high energy resolution, large mass and strong background rejection power. Important performances of compositions of our new readout scheme are shown: electric field simulation, VUV sensitivity of MPPC in high pressure gaseous xenon, response of MPPC for large amount of photons. To demonstrate as a whole system, we constructed a small prototype detector using 64 MPPCs filled with 4bar xenon gas. Result of measurement with a 57Co gamma-ray source are shown.

Original languageEnglish
Pages (from-to)394-397
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Publication statusPublished - 2017 Feb 11


  • Electroluminescence
  • Neutrinoless double beta decay
  • Time projection chambers
  • Xenon


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