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The NOvA power distribution system

Dukes, E. C. and Ehrlich, R. and Goadhouse, S. and Mualem, L. and Norman, A. and Tesarek, R. (2018) The NOvA power distribution system. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 902 . pp. 123-137. ISSN 0168-9002.

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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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Additional Information:© 2018 Elsevier. Received 8 April 2018, Revised 16 May 2018, Accepted 8 June 2018, Available online 22 June 2018. We wish to acknowledge the assistance of J. Oliver of Harvard University in the design of the high-voltage limiting circuit, M. Johnson of Fermilab in the design of the grounding system, and M. Matulik in the design of the relay rack protection system. We acknowledge the important contributions to the design, fabrication, and testing of the NOvA power distribution system from University of Virginia undergraduate students: G. Bailey, D. Evans, N. Fields, J. Gran, E. Ho, S. Hasselquist, K. Lagergren, D. Mudd, S. Russo, H. Tammaro, and K. Tran; technicians B. Mason and L. St. John; and graduate student Z. Wang. This work was supported by the US Department of Energy. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the US DOE.
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Department of Energy (DOE)DE-AC02-07CH11359
Subject Keywords:NOvA; Power distribution system; Fermilab; Neutrino physics
Record Number:CaltechAUTHORS:20180626-151733754
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Official Citation:E.C. Dukes, R. Ehrlich, S. Goadhouse, L. Mualem, A. Norman, R. Tesarek, The NOvA power distribution system, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 902, 2018, Pages 123-137, ISSN 0168-9002, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87359
Deposited By: George Porter
Deposited On:26 Jun 2018 22:26
Last Modified:03 Oct 2019 19:55

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