Position and energy-resolved particle detection using phonon-mediated microwave kinetic inductance detectors
Abstract
We demonstrate position and energy-resolved phonon-mediated detection of particle interactions in a silicon substrate instrumented with an array of microwave kinetic inductance detectors (MKIDs). The relative magnitude and delay of the signal received in each sensor allow the location of the interaction to be determined with ≲ 1mm resolution at 30 keV. Using this position information, variations in the detector response with position can be removed, and an energy resolution of σ_E = 0.55 keV at 30 keV was measured. Since MKIDs can be fabricated from a single deposited film and are naturally multiplexed in the frequency domain, this technology can be extended to provide highly pixelized athermal phonon sensors for ∼1 kg scale detector elements. Such high-resolution, massive particle detectors would be applicable to rare-event searches such as the direct detection of dark matter, neutrinoless double-beta decay, or coherent neutrino-nucleus scattering.
Additional Information
© 2012 American Institute of Physics. Received 20 March 2012; accepted 22 May 2012; published online 6 June 2012. This research was carried out in part at the Jet Propulsion Laboratory (JPL), California Institute of Technology, under a contract with the National Aeronautics and Space Administration. The devices used in this work were fabricated at the JPL Microdevices Laboratory. We gratefully acknowledge support from the Gordon and Betty Moore Foundation. This work benefited significantly from interactions with and simulation software developed by the CDMS/SuperCDMS collaborations, as well as from useful insights from B. Mazin and O. Noroozian. B. Cornell has been partially supported by a NASA Space Technology Research Fellowship.Attached Files
Published - ApplPhysLett_100_232601.pdf
Submitted - 1203.4549v1.pdf
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Additional details
- Eprint ID
- 30032
- Resolver ID
- CaltechAUTHORS:20120409-083629600
- Gordon and Betty Moore Foundation
- NASA Space Technology Research Fellowship
- NASA/JPL/Caltech
- Created
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2012-06-21Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field