Development Status of the KIPM Detector Consortium

Kavli Affiliate: Noah Kurinsky

| First 5 Authors: Dylan J Temples, Dylan J Temples, , ,

| Summary:

A Kinetic Inductance Phonon-Mediated Detector is a calorimeter that uses
kinetic inductance detectors to read out phonon signals from the device
substrate. We have established a consortium comprising university and national
lab groups dedicated to advancing the state of the art in these detectors, with
the ultimate goal of designing a detector sub-eV threshold on energy deposited
in the substrate, enabling searches for both light dark matter and low-energy
neutrino interactions. This consortium brings together experts in kinetic
inductance detector design, phonon and quasiparticle dynamics, and noise
modeling, along with specialized fabrication facilities, test platforms, and
unique calibration capabilities. Recently, our consortium has demonstrated a
resolution on energy absorbed by the sensor of 2.1 eV, the current record for
such devices. The current focus of the consortium is modeling and improving the
phonon collection efficiency and implementing low-$boldsymbolT_c$
superconductors, both of which serve to improve the overall energy resolution
and threshold of the detectors.

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