For developing and disseminating superconducting sensors and key enabling technologies, including millikelvin cryogenics and multiplexed readout circuitry.
The criterion for election is exceptional contributions to the physics enterprise; e.g., outstanding physics research, important applications of physics, leadership in or service to physics, or significant contributions to physics education. Fellowship is a distinct honor signifying recognition by one's professional peers.
And for the successful application of superconducting sensors to measurement problems in X-ray and gamma-ray spectroscopy.