학술논문

The Majorana Demonstrator readout electronics system
Document Type
article
Source
Journal of Instrumentation. 17(05)
Subject
Nuclear and Plasma Physics
Synchrotrons and Accelerators
Physical Sciences
Double-beta decay detectors
Electronic detector readout concepts
Front-end electronics for detector readout
Engineering
Nuclear & Particles Physics
Physical sciences
Language
Abstract
The Majorana Demonstrator comprises two arrays of high-purity germanium detectors constructed to search for neutrinoless double-beta decay in 76Ge and other physics beyond the Standard Model. Its readout electronics were designed to have low electronic noise, and radioactive backgrounds were minimized by using low-mass components and low-radioactivity materials near the detectors. This paper provides a description of all components of the Majorana Demonstrator readout electronics, spanning the front-end electronics and internal cabling, back-end electronics, digitizer, and power supplies, along with the grounding scheme. The spectroscopic performance achieved with these readout electronics is also demonstrated.