Персона: Юрина, Екатерина Александровна
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Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Екатерина Александровна
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- ПубликацияОткрытый доступЭнергетические характеристики групп мюонов в наклонных ШАЛ по данным эксперимента НЕВОД-ДЕКОР(НИЯУ МИФИ, 2021) Юрина, Е. А.; Юрина, Екатерина Александровна; Кокоулин, Р. П.
- ПубликацияОткрытый доступCosmic-Ray Anisotropy Study by Means of Detection of Muon Bundles(2023) Amelchakov, M. B.; Bogdanov, A. G.; Dmitrieva, A. N.; Kompaniets, K. G.; Khokhlov, S. S.; Kokoulin, R.; Petrukhin, A. A.; Shutenko, V. V.; Shulzhenko, I. A.; Yashin, I. I.; Yurina, E. A.; Амельчаков, Михаил Борисович; Богданов, Алексей Георгиевич; Дмитриева, Анна Николаевна; Компаниец, Константин Георгиевич; Хохлов, Семен Сергеевич; Кокоулин, Ростислав Павлович; Петрухин, Анатолий Афанасьевич; Шутенко, Виктор Викторович; Шульженко, Иван Андреевич; Яшин, Игорь Иванович; Юрина, Екатерина АлександровнаAbstract In this work, we use muon bundles, which are formed in extensive air showers and detected at the ground level, as a tool for searching for anisotropy in high-energy cosmic rays. Such choice is explained by the penetrating ability of muons that allows them to retain the direction of primary particles with good accuracy. In 2012–2022, we performed long-term muon-bundle detection with the coordinate-tracking detector DECOR, which is a part of the Experimental Complex NEVOD (MEPhI, Moscow). To search for cosmic-ray anisotropy, muon bundles arriving at zenith angles in the range from 15В° to 75В° in the local coordinate system are used. During the entire period of data taking, about 14 million of such events have been accumulated. In this paper, we describe some methods developed in the Experimental Complex NEVOD and implemented in our research, including: the method for compensating for the influence of meteorological conditions on the intensity of muon bundles at the Earth’s surface, the method for accounting for the design features of the detector and the inhomogeneity of the detection efficiency for different directions, as well as the method for estimating the primary energies of cosmic rays. Here we present the results of the search for the dipole anisotropy of cosmic rays with energies in the PeV region and also compare them with the results obtained at other scientific facilities.
- ПубликацияОткрытый доступVariations in the intensity of cosmic ray muon bundles according to DECOR data 2012-2017(2019) Yurina, E. A.; Bogdanov, A. G.; Dmitrieva, A. N.; Kokoulin, R. P.; Shutenko, V. V.; Юрина, Екатерина Александровна; Богданов, Алексей Георгиевич; Дмитриева, Анна Николаевна; Кокоулин, Ростислав Павлович; Шутенко, Виктор Викторович© 2019 Published under licence by IOP Publishing Ltd. Investigation of variations in the intensity of cosmic ray muon bundles detected at the ground level with the coordinate-tracking detector DECOR over a long period of observations is considered. It has been found that the measured intensity of the events exhibits clear seasonal variations, repeated every year of observations. These variations are caused by changes in atmospheric conditions. Correlations of the intensity of muon bundles with atmospheric pressure, mean air temperature and the altitude of the fixed residual atmospheric pressure levels have been analyzed.
- ПубликацияОткрытый доступEnergy loss measurements of inclined muon bundles in the Cherenkov water detector(2019) Kokoulin, R. P.; Barbashina, N. S.; Bogdanov, A. G.; Khokhlov, S. S.; Khomyakov, V. A.; Kindin, V. V.; Kompaniets, K. G.; Petrukhin, A. A.; Shutenko, V. V.; Yashin, I. I.; Yurina, E. A.; Кокоулин, Ростислав Павлович; Барбашина, Наталья Сергеевна; Богданов, Алексей Георгиевич; Хохлов, Семен Сергеевич; Киндин, Виктор Владимирович; Компаниец, Константин Георгиевич; Петрухин, Анатолий Афанасьевич; Шутенко, Виктор Викторович; Яшин, Игорь Иванович; Юрина, Екатерина АлександровнаAn experiment on the measurements of the energy deposit of inclined cosmic ray muon bundles is being conducted at the experimental complex NEVOD (MEPhI). The complex includes the Cherenkov water calorimeter with a volume of 2000 m(3) and the coordinate-tracking detector DECOR with a total area of 70 m(2). The DECOR data are used to determine the local muon densities in the bundle events and their arrival directions, while the energy deposits (and hence the average muon energy loss) are evaluated from the Cherenkov calorimeter response. Average energy loss carries information about the mean muon energy in the bundles. The detection of the bundles in a wide range of muon multiplicities and zenith angles gives the opportunity to explore the energy range of primary cosmic ray particles from about 10 to 1000 PeV in the frame of a single experiment with a relatively small compact setup. Experimental results on the dependence of the muon bundle energy deposit on the zenith angle and the local muon density are presented and compared with expectations based on simulations of the EAS muon component with the CORSIKA code.