Speaker
Description
At LLNL, we can currently operate up to 32 STJs in two “wet” adiabatic demagnetization refrigerators (ADRs) with liquid N2 and He pre-cooling and a base temperature of ~0.1 K. One of them holds the STJs at the end of a cold finger so that it can be surrounded by large scintillators for coincidence measurements. We also own a “dry” ADR with pulse-tube pre-cooling and a wet dilution refrigerator with a base temperature of ~10 mK, but they are not (yet?) set up for STJ operation. Our current plans are to focus on 1) testing new detector designs, 2) measuring decays of isotopes other than Be-7, and 3) performing gamma coincidence measurements, with the scaling to 128 pixels to be done at PNNL. But there are other options. I will discuss the facilities at LLNL and options for future technology development and scientific experiments.
