Here, we test and modify prototypes for ultra-sensitive particle detectors, based on cryogenic crystals with quantum sensors on their faces. Transition Edge Sensors (TESs), read out by Superconducting Quantum Interference Devices (SQUIDs) by superconducting cables, are operated at a fraction of a degree above absolute zero in a very quiet environment. Very cool -- literally -- applications of these detectors include the next generation of SuperCDMS-style experiments, as well as studying the properties of neutrinos.
Outer view of dilution refrigerator
Inside the dilution refrigerator
Payload of gram-scale prototype detectors
Readout electronics with SQUIDs