ADC Nonlinearity Correction for the MAJORANA DEMONSTRATOR

Abstract

Imperfections in analog-to-digital conversion (ADC) cannot be ignored when signal digitization requirements demand both wide dynamic range and high resolution, as is the case for the Majorana Demonstrator 76Ge neutrinoless double beta decay search. Enabling the experiment's high-resolution spectral analysis and efficient pulse shape discrimination required careful measurement and correction of ADC nonlinearites. A simple measurement protocol was developed that did not require sophisticated equipment or lengthy data taking campaigns. A slope-dependent hysteresis was observed and characterized. A correction applied to digitized waveforms prior to signal processing reduced the differential and integral nonlinearites by an order of magnitude, eliminating these as dominant contributions to the systematic energy uncertainty at the double-beta decay Q value.

References in corpus (11)

• Large-Mass Ultra-Low Noise Germanium Detectors: Performance and Applications in Neutrino and Astroparticle Physics
• Search for Zero-Neutrino Double Beta Decay in 76Ge with the Majorana Demonstrator
• A Search for Neutrinoless Double-Beta Decay in ${}^{76}$Ge with 26 kg-yr of Exposure from the MAJORANA DEMONSTRATOR
• New limits on Bosonic Dark Matter, Solar Axions, Pauli Exclusion Principle Violation, and Electron Decay from the Majorana Demonstrator
• First Limit on the Direct Detection of Lightly Ionizing Particles for Electric Charge as Low as $e$/1000 with the \textsc{Majorana Demonstrator}
• Multi-site event discrimination for the MAJORANA DEMONSTRATOR
• The Sanford Underground Research Facility at Homestake
• The Majorana Demonstrator calibration system
• Characterization of High Purity Germanium Point Contact Detectors with Low Net Impurity Concentration
• Charge Trapping and Energy Performance of the MAJORANA DEMONSTRATOR
• Delayed charge recovery discrimination of passivated surface alpha events in P-type point-contact detectors

Cited by in corpus (10)

• Final Result of the MAJORANA DEMONSTRATOR's Search for Neutrinoless Double-$\beta$ Decay in ${}^{76}$Ge
• Constraints on the decay of ${}^{180m}$Ta
• The MAJORANA DEMONSTRATOR Readout Electronics System
• Neutrinoless Double Beta Decay with Germanium Detectors: 10${}^{26}$ yr and Beyond
• Energy Calibration of Germanium Detectors for the MAJORANA DEMONSTRATOR
• Interpretable Boosted Decision Tree Analysis for the Majorana Demonstrator
• Final Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of ${}^{76}$Ge to Excited States of ${}^{76}$Se
• Experimental study of 13C(α,n)16O reactions in the Majorana Demonstrator calibration data
• Rare multi-nucleon decays with the full data sets of the Majorana Demonstrator
• Calibration of the GERDA experiment