Персона: Роденко, Светлана 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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Светлана Александровна
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- ПубликацияОткрытый доступTrack reconstruction of antiprotons and antideuterons in the coordinate-sensitive calorimeter of PAMELA spectrometer using the Hough transform(2019) Rodenko, S. A.; Mayorov, A. G.; Malakhov, V. V.; Troitskaya, I. K.; Роденко, Светлана Александровна; Майоров, Андрей Георгиевич; Малахов, Виталий Валерьевич© 2019 Published under licence by IOP Publishing Ltd. A method for identifying antiparticles (antiprotons and antideuterons) of low energies in the sampling imaging electromagnetic calorimeter in the PAMELA experiment is proposed. Tracks of antiparticles before annihilation in detector medium, as well as tracks of secondary particles that were born in the annihilation process, were identified using the Hough transform, the digital image processing method which allows us to search for straight lines on images, which in this case are tracks of particles and antiparticles (searching for the "star" topology).
- ПубликацияОткрытый доступReconstruction of particle's energy spectrum in experiment with Unfolding technique(2019) Alekseev, V. V.; Bogomolov, Y. V.; Dunaeva, O. A.; Mayorov, A. G.; Malakhov, V. V.; Rodenko, S. A.; Майоров, Андрей Георгиевич; Малахов, Виталий Валерьевич; Роденко, Светлана Александровна© Published under licence by IOP Publishing Ltd.In elementary particle physics, the characteristics of the events can be distorted to varying degrees due to instrumental effects, which leads to inaccuracies in experimental distributions. To solve such difficulties and restore distributions close to the true, a various mathematical approaches are used. In this paper, we examine the quality of unfolding methods for solving this problem. Different variants of unfolding are tested for the quality of restoring the true distribution by simulating the passage of cosmic ray particles through the PAMELA magnetic spectrometer. The following algorithms were analyzed: D'Agostini, SVD and TUnfold.