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Alekseev, I. G.; Belov, V. V.; Danilov, M. V.; Zhitnikov, I. V.; Zinatulina, D. R.; Kazartsev, S. V.; Kobyakin, A. S.; Kuznetsov, A. S.; Machikhiliyan, I. V.; Medvedev, D. V.; Nesterov, V. M.; Ponomarev, D. V.; Rozova, I. E.; Rumyantseva, N. S.; Rusinov, V. Yu; Samigullin, E. I.; Svirida, D. N.; Skrobova, N. A.; Tarkovsky, E. I.; Filosofov, D. V.; Fomina, M. V.; Shevchik, E. A.; Shirchenko, M. V.; Shitov, Yu. A.; Yakovleva, A. E.; Yakushev, E. A.
JETP letters, 08/2023, Letnik: 118, Številka: 3Journal Article
The DANSS detector is located directly under the nuclear reactor at the Kalinin nuclear power plant. Such a position ensures about 50 m.w.e. shielding from cosmic rays in the vertical direction; as a result, the detector occupies an intermediate position between surface and underground detectors in the shielding from cosmic rays. The sensitive volume of the detector consisting of a 1-m 3 plastic scintillator is surrounded by the multilayer passive shielding and muon veto. The main aim of the DANSS experiment is to measure the antineutrino spectrum at various distances from the source. To this end, the detector is placed on a lifting platform in order to record data at three positions of 10.9, 11.9, and 12.9 m from the reactor core. The detector can reconstruct muon tracks passing through its sensitive volume. The pressure, temperature, and decay coefficients for muons in various regions of the zenith angle have been determined from the muon data collected during four years using the effective generation level method.
