Acoustic Detection of Single Particles for Neutrino Experiments and Dark Matter Searches
We are developing an entirely new type of particle detector, called a silicon crystal acoustic detector (SiCAD), which senses ballistic phonons generated when an incident particle collides with a nucleus or electron in a cube of crystalline silicon. For events which deposit energy greater than about 1 keV, a 1 kg SiCAD would have spatial resolution better than 1 mm 3 and energy resolution better than 100 eV. We describe our laboratory research utilizing carbon thermistors, superconducting transition edge devices, and superconducting tunnel junctions as phonon sensors on the crystal faces.
Neuhauser, B., Cabrera, B., Martoff, C., & Young, B. (1987). Acoustic detection of single particles for neutrino experiments and dark matter searches. IEEE Transactions on Magnetics, 23(2), 469–472. https://doi.org/10.1109/TMAG.1987.1064994