MPPC versus MRS APD in two-phase Cryogenic Avalanche Detectors

Abstract

Two-phase Cryogenic Avalanche Detectors (CRADs) with combined THGEM/GAPD multiplier have become an emerging potential technique for dark matter search and coherent neutrino-nucleus scattering experiments. In such a multiplier the THGEM hole avalanches are optically recorded in the Near Infrared (NIR) using a matrix of Geiger-mode APDs (GAPDs). To select the proper sensor, the performances of six GAPD types manufactured by different companies, namely by Hamamatsu (MPPCs), CPTA (MRS APDs) and SensL (SiPMs), have been comparatively studied at cryogenic temperatures when operated in two-phase CRADs in Ar at 87 K. While the GAPDs with ceramic packages failed to operate properly at cryogenic temperatures, those with plastic packages, namely MPPC S10931-100P and MRS APD 149-35, showed satisfactory performances at 87 K. In addition, MPPC S10931-100P turned out to be superior in terms of the higher detection efficiency, lower nose rate, lower pixel quenching resistor and better characteristics reproducibility.

11 pages, 8 figures. Submitted to JINST

References in corpus (6)

• A concise review on THGEM detectors
• Optical readout tracking detector concept using secondary scintillation from liquid argon generated by a thick gas electron multiplier
• Direct observation of avalanche scintillations in a THGEM-based two-phase Ar avalanche detector using Geiger-mode APD
• Geiger Mode APD performance in a cryogenic two-phase Ar avalanche detector based on THGEMs
• Measurement of the ionization yield of nuclear recoils in liquid argon at 80 and 233 keV
• Performance degradation of Geiger-mode APDs at cryogenic temperatures

Cited by in corpus (2)

• Measurement of the ionization yield of nuclear recoils in liquid argon using a two-phase detector with electroluminescence gap
• Further studies of proportional electroluminescence in two-phase argon