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Работа поÑвÑщена определению влиÑÐ½Ð¸Ñ Ñ€Ð°Ð´Ð¸Ð°Ñ†Ð¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ нагрева криÑталла на точноÑть ÑкÑперимента по проверке принципа ÑквивалентноÑти Ð´Ð»Ñ Ð½ÐµÐ¹Ñ‚Ñ€Ð¾Ð½Ð°, а также выбору оптимальной конфигурации ÑкÑпериментальной уÑтановки. Ðнализ включает в ÑÐµÐ±Ñ Ñ€Ð°Ð·Ñ€Ð°Ð±Ð¾Ñ‚ÐºÑƒ Ñтратегии моделированиÑ, алгоритмов и программ раÑчета радиационного нагрева криÑталла в ÑледÑтвии Ð¿Ñ€Ð¾Ñ…Ð¾Ð¶Ð´ÐµÐ½Ð¸Ñ Ñ‡ÐµÑ€ÐµÐ· него пучка нейтронов, а также градиентов температур, определение деформации криÑталла и формулировку на их оÑнове предложений по оптимизации уÑтановки в целом. Ð’ качеÑтве оÑновного метода Ð²Ñ‹Ð¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ Ð½Ð°ÑтоÑщей работы иÑпользовалоÑÑŒ чиÑленное моделирование, оÑнованное на Ñовременном пакетах ELCUT и COMSOL Multiphysics. Результаты работы позволÑÑŽÑ‚ дать ответ на Ð²Ð¾Ð¿Ñ€Ð¾Ñ Ð¾ влиÑнии радиационного нагрева криÑталла на точноÑть ÑкÑперимента по проверке принципа ÑквивалентноÑти Ð´Ð»Ñ Ð½ÐµÐ¹Ñ‚Ñ€Ð¾Ð½Ð°, получить количеÑтвенные оценки Ñтого влиÑÐ½Ð¸Ñ Ð½Ð° точноÑть ÑкÑперимента и выбрать оптимальную конфигурацию ÑкÑпериментальной уÑтановки.
The work is devoted to determining the effect of radiation heating of a crystal on the precision of the experiment to test the equivalence principle for the neutron, as well as the choice of the optimal configuration of the experimental setup. The analysis includes the development of strategy of simulation, modeling algorithms and programs of calculation of radiation heating of the crystal in the result of the passage through it of a beam of neutrons, as well as the temperature gradients, the determination of the deformation of the crystal and the formulation on their basis proposals to optimize the whole setup. As the main method of execution of the present work, the numerical modeling based on modern packages ELCUT and COMSOL Multiphysics was used. The results of the work answering the question about the influence of radiation heating of a crystal on the precision of the experiment, allow to test the equivalence principle for the neutron and to obtain an estimation of this influence on the accuracy of the experiment and to choose the optimal configuration of the experimental setup.
ÐиÑÑакÑиÑ, Laue diffraction, equivalence principle, ÐейÑÑонÑ, пÑинÑип ÑквиваленÑноÑÑи, диÑÑакÑÐ¸Ñ Ð¿Ð¾ ÐаÑÑ, ÐÑиÑÑаллÑ, ÐоделиÑование
ÐиÑÑакÑиÑ, Laue diffraction, equivalence principle, ÐейÑÑонÑ, пÑинÑип ÑквиваленÑноÑÑи, диÑÑакÑÐ¸Ñ Ð¿Ð¾ ÐаÑÑ, ÐÑиÑÑаллÑ, ÐоделиÑование
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