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Industrial Reactor Power Monitoring Using Antineutrino Counts in the DANSS Detector

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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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Funding

The design and construction of the DANSS setup became possible due to the support from the State Atomic Energy Corporation ‘RosAtom’ in the framework of the state contracts no. H.4x.44.90.13.1119 and no. H.4x.44.9B.16.1006. The long-term operation of the detector, the experimental data taking and their analysis are carried out under the grant no. 17-12-01145 of the Russian Scientific Foundation.

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Correspondence to D. N. Svirida.

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Russian Text © The Author(s), 2019, published in Yadernaya Fizika, 2019, Vol. 82, No. 5, pp. 371–381.

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Alekseev, I.G., Belov, V.V., Brudanin, V.B. et al. Industrial Reactor Power Monitoring Using Antineutrino Counts in the DANSS Detector. Phys. Atom. Nuclei 82, 415–424 (2019). https://doi.org/10.1134/S1063778819050041

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  • DOI: https://doi.org/10.1134/S1063778819050041

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