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arXiv:2604.06459 (physics)
[Submitted on 7 Apr 2026]

Title:Development of a Modular Current-Mode NaI(Tl) Detector Array for Parity Odd (n,γ) Cross Section Measurements

Authors:J. T. Mills, J. G. Otero Munoz, K. Dickerson, I. Britt, A. Couture, J. Doskow, J. Fry, I. Ide, M. Kitaguchi, R. Kobayashi, M. Luxnat, A. Moseley, R. Nakabe, I. Novikov, K. Oikawa, T. Oku, T. Okudaira, A. Quintinar-Peña, A. Richburg, S. Samiei, D. Schaper, H. M. Shimizu, D. Slone, W. M. Snow, S. Takada, S. Takahashi, Y. Tsuchikawa, G. Visser, J. Winkelbauer
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Abstract:The Neutron Optics Parity and Time-Reversal Violation Experiment (NOPTREX) Collaboration has developed a modular array of 24 NaI(Tl) detectors to measure parity and time-reversal symmetry violation in neutron-nucleus interactions. These detectors feature custom electronics that allow for operation in pulse or current mode. This paper describes the design, construction, characterization, and testing of the detectors in this array. We demonstrate the ability of the array to detect parity-odd asymmetries in neutron resonances by observing the known 0.7 eV parity-violating resonance in 139La in measurements at LANSCE.
Subjects: Instrumentation and Detectors (physics.ins-det); Nuclear Experiment (nucl-ex)
Cite as: arXiv:2604.06459 [physics.ins-det]
  (or arXiv:2604.06459v1 [physics.ins-det] for this version)
  https://doi.org/10.48550/arXiv.2604.06459

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From: Jon Mills [view email]
[v1] Tue, 7 Apr 2026 20:58:30 UTC (22,786 KB)
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