A Monte Carlo simulation of the Sudbury Neutrino Observatory proportional counters
B. Beltran, H. Bichsel, B. Cai, H. Deng, J. A. Formaggio, S. Habib, A., L. Hallin, A. Hime, M. Huang, C. Kraus, H. R. Leslie, J. C. Loach, R. Martin,, S. McGee, M. L. Miller, B. Monreal, J. Monroe, N. S. Oblath, S. J. M., Peeters, A. W. P. Poon, G. Prior, K. Rielage
TL;DR
This paper presents a detailed Monte Carlo simulation of the proportional counters used in the Sudbury Neutrino Observatory's third phase, aiding in modeling background signals for solar neutrino detection.
Contribution
It introduces a comprehensive simulation of NCD array signals, enhancing the understanding of background noise in neutrino measurements.
Findings
Simulation accurately models current pulses from neutron captures.
The model helps distinguish neutrino signals from alpha-decay backgrounds.
Improves the analysis of solar neutrino data.
Abstract
The third phase of the Sudbury Neutrino Observatory (SNO) experiment added an array of 3He proportional counters to the detector. The purpose of this Neutral Current Detection (NCD) array was to observe neutrons resulting from neutral-current solar neutrino-deuteron interactions. We have developed a detailed simulation of the current pulses from the NCD array proportional counters, from the primary neutron capture on 3He through the NCD array signal-processing electronics. This NCD array Monte Carlo simulation was used to model the alpha-decay background in SNO's third-phase 8B solar-neutrino measurement.
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