Conveners
C2Po1A: Superconducting III: Quantum Systems
- Matthew Hollister (Fermi National Accelerator Laboratory)
- Michael DiPirro (NASA)
Superconducting nanowire single photon detectors (SNSPDs) offer unparalleled efficiency, minimal dark count rates, and picosecond jitter, making them ideal for single photon detector applications across the visible to mid-IR spectrum. A common cryogenic system used to reach these detectors' optimal operating temperatures (>1 K) consists of a Sumitomo's compact RDK101 Gifford McMahon Cryocooler...
Applications of very low temperature cryogenics are growing to serve the needs of quantum electronics and basic science. The evolution of these applications to larger and more powerful systems involves more cryogenic cooling power. The architectures, techniques and machines of current refrigerators do not allow this scale up (power, efficency).
Air Liquide Advanced Technologies wishes to...
The Colossus platform at Fermilab will be the largest and most powerful 3He/4He dilution-cooled cryogenic system constructed to-date. Perhaps its primary innovation will be in the integration of a liquid helium cryogenics plant to cool the stages typically cooled by mechanical cryocoolers in commercially available cryogen-free dilution refrigerators. This design shift carries with it...
Colossus will be a large millikelvin platform that will have a two-meter diameter mixing chamber plate. This uniquely large millikelvin platform will utilize a cryogenics plant to maintain progressively lower temperatures at each of the three upper stages and precool the lower three stages of the system. At the millikelvin stages, Colossus will employ multiple commercially available dilution...
