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Algorithms and Programs for Express-Analysis of List-Mode Data of Neutron Scattering, Measured on Two-Dimensional Position-Sensitive Detectors with a Delay Line Using Data Acquisition Systems Based on CAEN Digitizers

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Abstract

When using general-purpose electronics (in particular, CAEN digitizers) in data acquisition systems from two-dimensional position-sensitive neutron detectors with a delay line, the task of constructing neutron events from raw data must be performed at the software level. Digitizers provide raw data in list mode, often referred to as event-based acquisition mode. A tricky algorithm for constructing neutron events can take too long, which disallows near real-time visualization of measurements. The article presents a way to speed up the operation of algorithms for calculating neutron spectra from raw experimental data measured in the list mode. The developed software for a sufficiently fast conversion of the measured data into formats suited for prompt calculation and visualization the requested positional and time-of-flight spectra of neutrons is described. As a result, it became possible to visualize neutron spectra in near real-time.

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ACKNOWLEDGMENTS

The authors are grateful to many colleagues and co-authors of our previous publications who took part in obtaining the data at the reactor, which we used in this work to study the performance of the developed software.

The work was carried out with the financial support of the Russian Federation represented by the Ministry of Science and Higher Education, agreement no. 075-10-2021-115 of 13 October 2021 (internal number 15.SIN.21.0021).

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  1. Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980, Dubna, Russia

    E. I. Litvinenko & A. A. Bogdzel

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  1. E. I. Litvinenko
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  2. A. A. Bogdzel
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Correspondence to E. I. Litvinenko.

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Litvinenko, E.I., Bogdzel, A.A. Algorithms and Programs for Express-Analysis of List-Mode Data of Neutron Scattering, Measured on Two-Dimensional Position-Sensitive Detectors with a Delay Line Using Data Acquisition Systems Based on CAEN Digitizers. Phys. Part. Nuclei Lett. 19, 241–248 (2022). https://doi.org/10.1134/S1547477122030128

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