Novel measurement method of heat and light detection for neutrinoless double beta decay

• DOI: 10.1016/j.astropartphys.2017.02.009
• Publication Date: 2017-03-01T21:46:41Z
• Authors: G.B. Kim; J.H. Choi; H.S. Jo; C.S. Kang; H.L. Kim; I. Kim; S.R. Kim; Y.H. Kim; C. Lee; H.J. Lee; M.K. Lee; J. Li; S.Y. Oh; J.H. So
• Keywords: SIGNAL (programming language)

We developed a cryogenic phonon-scintillation detector to search for 0νββ decay of 100Mo. The module, proto-type setup the AMoRE experiment, has scintillating 40Ca100MoO4 absorber composed 100Mo-enriched and 48Ca-depleted elements. This new detection method employs metallic magnetic calorimeters (MMCs) as sensor technology simultaneous heat light signals. It is designed have high energy timing resolutions increase sensitivity probe rare event. detector, which 200 g crystal phonon/photon sensors, showed an resolution 8.7 keV FWHM at 2.6 MeV, with weak temperature dependence in range 10-40 mK. Using rise-time mean-time parameters light/heat ratios, proposed strong capability rejecting alpha-induced events from electron good 20σ separation. Moreover, we discussed how signal improves rejection efficiency random coincidence