2026-01-08 17:02 UTC · physics.ins-det · physics.ins-det, nucl-ex

A gaseous-helium cooling system for silicon detectors in the Nab experiment

Love Richburg, Noah Birge, Nadia Fomin, Grant Riley, Josh Pierce, John Ramsey, Wolfgang Schreyer, Seppo Penttila, Isaiah Wallace, Di'Arra Mostella, Aaron Jezghani, Alexander Saunders, Americo Salas Bacci, Ariella Atencio, August Mendelsohn, Austin Nelsen, Bryan Zeck, Christopher Crawford, Corey Gilbert, David Mathews, Deion Fellers, Duncan Fuehne, Erick Smith, Francisco Gonzalez, Glenn Randall, Himal Acharya, Huangxing Li, Hunter Presley, Jackie Mirabal, Jason Fry, Jin Ha Choi, Jordan O'Kronley, Josh Hamblen, Leah Broussard, Mark Makela, Nick Macsai, Pat McGaughey, Rebecca Godri, Ricardo Alarcon, Russell Mammei, Sean Hollander, Skylar Clymer, Zachary Garman

The Nab experiment aims to extract the neutron beta decay correlation coefficients 'a' and 'b'. This will be accomplished using a 7 m tall electromagnetic spectrometer which measures electron energies and proton momenta. Detection of electrons and protons resulting from neutron beta decay will be carried out using large-area, thick, highly-segmented, single-crystal silicon detectors. These detectors and accompanying electronics will be cooled by a recirculating, gaseous helium cooling system to below 150 K with +/- 0.5 K stability. We will motivate the need for detector cooling in the Nab experiment and discuss design and performance of this cooling system.

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A gaseous-helium cooling system for silicon detectors in the Nab experiment

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