SuperCDMS
overview
The internationalSuper Cryogenic Dark Matter Search (SuperCDMS) collaboration is attempting to make the first direct detection of a dark matter particle by sensing the tiny vibrations caused by its collision with ordinary matter.
Based at SNOLAB, SuperDMS is one of five TRIUMF-SNOLAB collaborations involving some of the world’s most advanced experiments in DM detection (also DEAP-3600) and neutrino science (SNO+, nEXO and HALO). SNOLAB is the deepest underground laboratory in North America, based two-kilometers under Sudbury, Ontario.
how it works
The SuperCDMS experiment is designed to detect dark matter by measuring the collision energy imparted to a germanium or silicon atom nucleus in a collision with a dark matter particle. The experiment will be particularly sensitive to particles with masses less than a few times that of a proton.
The detection and characterization of dark matter would revolutionize particle physics and cosmology. By confirming aspects of beyond-Standard Model theories, it would guide the work of generations of physicists, paving the way to new physics and its practical applications.
Similarly, non-detection by SuperCDMS will significantly narrow the possible characteristics of hypothesized dark matter particles.
SuperCDMS is a next-generation, scaled-up stage of the long-term international CDMS collaboration. Initially based at Stanford University’s Underground Facility and then the Soudan mine in Minnesota, USA, the project is moving to SNOLAB to benefit from the cosmic ray shielding provided by the greater depth.
TRIUMF and Nexo
As part of SuperCDMS, TRIUMF is involved in the installation, commissioning and operation of a Cryogenic Underground TEst facility (CUTE) located next to the SuperCDMS setup.
As part of the cryogenics program, a dilution refrigerator system will be installed at TRIUMF for SuperCDMS research and development activities, potentially including detector characterization, testing of new detector concepts, operating modes or calibration concepts. And TRIUMF is supporting tentative plans by SuperCDMS to install a muon or neutron veto detector during the next major upgrade of the experiment.
TRIUMF is also heavily involved in the University of British Columbia-led development of the new MIDAS-based data acquisition software for SuperCDMS.