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Industrial Reactor Power Monitoring Using Antineutrino Counts in the DANSS Detector |
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| Authors: | Alekseev I. G. Belov V. V. Brudanin V. B. Guzeev G. G. Danilov M. V. Egorov V. G. Zhitnikov I. V. Zinatulina D. R. Kazartsev S. V. Kobyakin A. S. Kuznetsov A. S. Machikhiliyan I. V. Medvedev D. V. Nesterov V. M. Olshevsky A. G. Pogorelov N. A. Ponomarev D. V. Rozova I. E. Rumyantseva N. S. Rusinov V. Yu. Samigullin E. I. Svirida D. N. Skrobova N. A. Starostin A. S. Tarkovsky E. I. Filosofov D. V. Fomina M. V. Khvatov V. A. Chapaev V. M. Shevchik Ye. A. Shirchenko M. V. Shitov Yu. A. |
| Affiliation: | 1.National Research Center “Kurchatov Institute”—ITEP, Moscow, Russia ;2.National Research Nuclear University “MEPhI”, Moscow, Russia ;3.Moscow Institute of Physics and Technology (State University), Dolgoprudny, Russia ;4.Joint Institute for Nuclear Research, Dubna, Russia ;5.Kalinin Nuclear Power Plant, Udomlya, Russia ;6.Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia ;7.Dubna State University, Dubna, Russia ;8.Imperial College London, South Kensington Campus, London, UK ; |
| Abstract: | Detection of antineutrino by the reaction of the inverse β-decay can be used for an independent monitoring of a nuclear reactor power. DANSS detector is located directly under a commercial WWER-1000 reactor and counts up to 5000 antineutrino per day, providing the accuracy of 1.5% in 2 days of the flux measurement. A powerful system of the passive and active shielding in combination with the fine spatial segmentation of the detector allows to diminish the contribution of the background processes to a level, negligible in comparison to the statistical error. The influence of the nuclear fuel composition on the neutrino flux can be accounted for based on the input from the NPP staff. |
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