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Neutron physics investigations of fundamental processes of statistical mechanics

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dc.contributor.authorDzheparov, F. S.
dc.contributor.authorGulko, A. D.
dc.contributor.authorElyutin, N. O.
dc.contributor.authorLvov, D. V.
dc.contributor.authorShestopal, V. E.
dc.contributor.authorДжепаров, Фридрих Саламонович
dc.contributor.authorЛьвов, Дмитрий Владимирович
dc.date.accessioned2024-12-25T08:00:24Z
dc.date.available2024-12-25T08:00:24Z
dc.date.issued2022
dc.description.abstractStudies in spin dynamics of disordered media and multiple ultra-small angle neutron scattering are considered. The experiments were carried out on unique installations designed in ITEP laboratory of neutron physics: beta-NMR spectrometer and universal neutron diffractometer. The main attention is paid to random walks in disordered systems and ultra-small angle neutron scattering (USANS) on objects with space correlations in positions of scatterers. Synthesis of concentration expansion, semi-phenomenological theory and numerical simulations produced satisfactory description of the nuclear polarization transfer within disordered 8Li-6Li spin subsystem in LiF single crystal. The theory of USANS starts from eikonal approximation for the scattering amplitude, which (a) reproduces the phenomenological Moliere-Bethe theory for the observable neutron angular distributions for uncorrelated random positions of scatterers, and (b) gives a possibility to take into account their spatial correlations. © 2022 World Scientific Publishing Company.
dc.identifier.citationNeutron physics investigations of fundamental processes of statistical mechanics / Dzheparov, F.S. [et al.] // International Journal of Modern Physics A. - 2022. - 10.1142/S0217751X22430084
dc.identifier.doi10.1142/S0217751X22430084
dc.identifier.urihttps://www.doi.org/10.1142/S0217751X22430084
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85136702297&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000849386400001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/27368
dc.relation.ispartofInternational Journal of Modern Physics A
dc.titleNeutron physics investigations of fundamental processes of statistical mechanics
dc.typeArticle
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