Application of a high-precision distributed uranium source for determining the effective mass and volume of a HPGe detector
Barabash A.S. Evseev S. Filosofov D. Kazalov V. Khussainov T. Lubashevskiy A. Mokhine N.D. Ponomarev D. Rozov S. Vasilyev S. Vorobyeva M. Yakushev E. Yumatov V.I.
July 2026Elsevier B.V.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
2026#1087
A distributed uranium source with the accurately certified activity of 238U has been used to verify the effective mass of the HPGe detector intended for the νGeN neutrino experiment. The source, dissolved in nitric acid, provides homogeneous irradiation of the detector crystal allowing the study of its mass and volume. The experimental spectra obtained with the distributed source have been compared to the detailed Geant4 Monte Carlo simulations. The measured counting rates of several γ-lines agree with the simulated efficiencies, confirming that the detectors mass and volume coincide with the manufacturers specifications. The results demonstrate the applicability of such sources for mass calibration of HPGe detectors.
Geant4 simulation , HPGe detector , Uranium calibration source , νGeN experiment
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Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, 6 Joliot-Curie, Dubna, 141980, Russian Federation
National Research Center «Kurchatov Institute», Kurchatov Complex of Theoretical and Experimental Physics, Moscow, 117218, Russian Federation
Institute for Nuclear Research of the Russian Academy of Sciences, 7a Prospect 60-letiya Oktyabrya, Moscow, 117312, Russian Federation
Institute of Nuclear Physics of the Ministry of Energy of the Republic of Kazakhstan, 1 Ibragimov Street, Almaty, 050032, Kazakhstan
Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Prospect, Moscow, 119991, Russian Federation
Kabardino-Balkarian State University named after H.M. Berbekov, 173 Ulitsa Chernyshevskogo, Nalchik, 360004, Russian Federation
Dzhelepov Laboratory of Nuclear Problems
National Research Center «Kurchatov Institute»
Institute for Nuclear Research of the Russian Academy of Sciences
Institute of Nuclear Physics of the Ministry of Energy of the Republic of Kazakhstan
Lebedev Physical Institute of the Russian Academy of Sciences
Kabardino-Balkarian State University named after H.M. Berbekov
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Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026