Cryogenic Detector for Measuring Radioactivity in a Sample

Abstract

Detector for measuring radioactivity in a sample, the detector being configured to operate at a cryogenic temperature and including: a crystal absorber, in which a cavity is formed for receiving a sample whose radioactivity is to be measured, the crystal absorber being configured to produce phonons in response to an interaction of an ionizing radiation with the crystal absorber, at least one thermal sensor configured to detect a variation in the temperature of the crystal absorber in response to a production of phonons in the crystal absorber, and electronics configured to determine the energy deposited by the ionizing radiation in the crystal absorber as a function of the temperature variation.

Dependencies are inferred from the claim text.