The thermal link to the bath was provided by Au bonding wires which give also the electrical connection with the NTD Ge sensors.In addition, each crystal was supplied with a small heater made of a heavily-doped Si [).All of them are based on high purity Ge wafers and their typical size is 44–45 mm in diameter and 0.17–0.3 mm thickness, but two detectors have slightly lower area and tens In the present investigations, we used two cryogenic set-ups: CUPID R&D and EDELWEISS-III located at Gran Sasso National Laboratories (LNGS, Italy) and Modane underground laboratory (LSM, France), respectively.The general description of these facilities is given in Table searches, with ROI at a few Me V, while the EDELWEISS-III set-up was conceived to perform direct dark-matter searches with the help of massive heat-ionization bolometers, with a ROI in the tens-of-ke V range.A short description of the used underground cryogenic set-ups.The rock overburden is expressed in km of water equivalent (km w.e.).
In particular, thin light detectors are very sensitive to the vibrations induced by the three thermal machines of the set-up.(Baseline noise at the level of a few hundreds of e V are sufficient to provide efficient light-assisted particle identification) According to Monte Carlo simulations of technology is mature enough to carry out a pilot experiment on a several-kilogram scale.This technology demonstrator will provide essential information for the choice of the CUPID technique by clarifying the merits and the drawbacks of the sample enr LMO-t (bottom panels).-containing zinc and lithium molybdate crystals have been produced and used to develop high performance single detector modules based on 0.2–0.4 kg scintillating bolometers.
In particular, the energy resolution of the lithium molybdate detectors near the ) decay, a yet-to-be-observed nuclear transition, consists in the transformation of an even-even nucleus into a lighter isobar containing two more protons with emission of two electrons and no other particles, resulting in a violation of the total lepton number by two units: decay would have profound implications for our understanding of nature, proving that neutrinos are their own antiparticles (Majorana fermions), fixing the absolute neutrino mass scale and offering also a clue for the creation of matter abundance in the primordial universe (see recent reviews [ decay is a powerful, inclusive test of lepton number violation.A large group of interest is proposing a next-generation bolometric experiment, CUORE Upgrade with Particle ID (CUPID) [ candidates considered for CUPID.