The NOvA Power Distribution System
E.C. Dukes, R. Ehrlich, S. Goadhouse, L. Mualem, A. Norman, and R., Tesarek
TL;DR
This paper details the design and implementation of the power distribution and grounding systems for the NOvA neutrino experiment's detectors, supporting extensive readout channels and ensuring reliable operation.
Contribution
It presents the specific power and grounding schemes developed for the NOvA detectors, including their capacity to support over 344,000 readout channels.
Findings
Successful powering of 344,064 channels in the far detector
Effective grounding schemes for detector stability
Reliable operation of readout electronics
Abstract
We describe the power distribution systems and grounding schemes built for the near and far detectors of the NOvA long-baseline neutrino experiment. They are used to power the avalanche photodiodes and their thermoelectric coolers, the front-end boards that read out, digitize and time stamp the signals from the avalanche photodiodes, and the data concentrator modules used to receive and format the data from the front-end boards before sending them to a farm of computers used to build the events. The system powers 344,064 readout channels in the far detector and 20,192 channels in the near detector.
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