Publications (10)
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…
PubTree: A Hierarchical Search Tool for the MEDLINE Database
William Rowe, Paul D. Dobson, Bede Constantinides +1
Keeping track of the ever-increasing body of scientific literature is an escalating challenge. We present PubTree a hierarchical search tool that efficiently searches the PubMed/ME…
Cryogenic Dark Matter Search Detector Fabrication Process and Recent Improvements
Andrew Jastram, Rusty Harris, Rupak Mahapatra +5
A dedicated facility has been commissioned for Cryogenic Dark Matter Search (CDMS) detector fabrication at Texas A&M University (TAMU). The fabrication process has been carefully t…
A Stress Induced Source of Phonon Bursts and Quasiparticle Poisoning
Robin Anthony-Petersen, Andreas Biekert, Raymond Bunker +43
The performance of superconducting qubits is degraded by a poorly characterized set of energy sources breaking the Cooper pairs responsible for superconductivity, creating a condit…
Single Electron-Hole Pair Sensitive Silicon Detector with Surface Event Rejection
Ziqing Hong, Runze Ren, Noah Kurinsky +8
We demonstrate single electron-hole pair resolution in a single-sided, contact-free 1 cm by 1 mm thick Si crystal operated at 48 mK, with a baseline energy resolution of 3 eV.…
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…
Snowmass 2021: Superconducting Sensor Fabrication Capabilities for HEP Science
Thomas Cecil, Clarence L. Chang, Shannon M. Duff +4
Superconducting sensors are a key enabling technology for many HEP experiments with advances in sensor capabilities leading directly to expanded science reach. The unique materials…
Removal of Pb by Etch of Crystalline Detector Sidewalls
Joseph Street, Rupak Mahapatra, Eric Morrison +2
A potential source of dominant backgrounds for many rare-event searches or screening detectors is from radon daughters, specifically Pb, deposited on detector surfaces, oft…
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…