13 citations · 31 across the 7 of their papers we have counts for
8 papers · 1 filter
Improved aluminum film transport properties and enhanced TES response in athermal phonon detectors: implications for quasiparticle dynamics
Mahdi Mirzakhani, Keith Hunter, Rupak Mahapatra +1
Our detectors for Dark Matter and Coherent Elastic Neutrino--Nucleus Scattering (CENS) use photolithographically patterned superconducting athermal phonon sensors that are coupl…
Single-electron detection in a high-purity Ge device
Antoine Armatol, Corinne Augier, Laurent Bergé +69
High-purity germanium (HPGe) detectors are among the most powerful instruments for gamma ray spectroscopy, combining exceptional energy resolution with large active volumes. Althou…
Performance of a SuperCDMS HVeV Detector with Sub-eV Energy Resolution and Single Charge-sensitivity
Kyle Kennard, Aditi Pradeep, Mason Buchanan +41
We present a detailed characterization of a new generation of athermal-phonon single-charge sensitive Si HVeV detectors, the best of which achieved 589~meV~~5~meV baseline res…
Spontaneous generation of athermal phonon bursts within bulk silicon causing excess noise, low energy background events and quasiparticle poisoning in superconducting sensors
C. L. Chang, Y. -Y. Chang, M. Garcia-Sciveres +25
Solid state phonon detectors used in the search for dark matter and coherent neutrino nucleus interactions (CENS) require excellent energy resolution (eV-scale or below) and low…
Low Energy Backgrounds and Excess Noise in a Two-Channel Low-Threshold Calorimeter
Robin Anthony-Petersen, Clarence L. Chang, Yen-Yung Chang +29
We describe observations of low energy excess (LEE) events, background events observed in all light dark matter direct detection calorimeters, and noise in a Transition Edge Sensor…
A Transition Edge Sensor Operated in Coincidence with a High Sensitivity Athermal Phonon Sensor for Photon Coupled Rare Event Searches
Roger K. Romani, Yen-Yung Chang, Rupak Mahapatra +6
Experimental searches for axions or dark photons that couple to the standard model photon require photosensors with low noise, broadband sensitivity, and near zero backgrounds. Her…
Measurement of Low Energy Nuclear Recoil Events with the phonon-mediated Voltage-Assisted Hybrid Detector for Rare Event Searches
Sandro Maludze, Mahdi Mirzakhani, William Baker +7
The phonon-mediated hybrid detector is made out of a monolithic silicon crystal characterized by two interconnected regions linked through a narrow neck. Operating solely on phonon…
Exploring Charge Transport Dynamics in a Cryogenic P-Type Germanium Detector
P. Acharya, M. Fritts, D. -M. Mei +3
This study explores the dynamics of charge transport within a cryogenic P-type Ge particle detector, fabricated from a crystal cultivated at the University of South Dakota (USD). B…