Angular distributions of α particles emitted by oriented nuclei and their relation to nuclear deformationстатья
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Дата последнего поиска статьи во внешних источниках: 4 февраля 2014 г.
Авторы:
Gurevich G.M.,
Erzinkyan A.L. ,
Parfenova V.P.
Журнал:
Bulletin of the Russian Academy of Sciences: Physics
Том:
75
Номер:
4
Год издания:
2011
Издательство:
Allerton Press Inc.
Местоположение издательства:
United States
Первая страница:
520
Последняя страница:
525
DOI:
10.3103/S1062873811040186
Аннотация:
Low-temperature spin orientation of radioactive nuclei is a nuclear spectroscopic method that allows us to obtain experimental data on nuclei and extranuclear fields. We present the results from measuring the angular anisotropy of α radiation emitted by transuranium nuclei of 253,254Es, 255Fm, 241,243Am, along with that of γ radiation from 250Bk nuclei oriented in an iron matrix at temperatures of 10-300 mK. The data allow us to establish the relation between the mechanism of α decay and nuclear deformation and to compare them to the theoretical data. We also measure the energy of magnetic hyperfine splitting for the investigated nuclei, and find the magnetic hyperfine field value for Es in Fe to be |B hf | = 396(32) T. The nuclear magnetic moment for 254Es was determined, and its value was |μ( 254Es)| = 4.35(41)μ N . © 2011 Allerton Press, Inc.
Добавил в систему:
Ерзинкян Арсен Левонович