Neutron pumping of active medium formed by gadolinium isotopes Gd155 and Gd156 pair

Neutron pumping of active medium formed by gadolinium isotopes Gd155 and Gd156 pair

Bibliographic Details
Parent link:Applied Radiation and Isotopes
Vol. 171.— 2021.— [109649, 4 p.]
Corporate Authors: Национальный исследовательский Томский политехнический университет Инженерная школа ядерных технологий Отделение ядерно-топливного цикла, Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Other Authors: Shamanin I. V. Igor Vladimirovich, Kazaryan M. A. Mishik Ayrazatovich, Bedenko S. V. Sergey Vladimirovich, Knyshev V. V. Vladimir Vladimirovich, Shamanin V. I. Vitaly Igorevich
Summary:Title screen
The possibility of accumulation of excess energy in the active medium formed by the gadolinium isotopes Gd-155 and Gd-156 possible due to the formation and accumulation of Gd-156m nuclei in the isomeric state during radiation capture of neutrons by the nuclei of a stable isotope with a lower mass is shown. A numerical simulation of the dynamics of the energy levels population of Gd-156 nuclei at repetitively-pulsed pumping of the active medium formed by isotope-modified gadolinium oxide was carried out. The calculation for various combinations of neutron duty cycle of pulses, flux density, and neutron energy spectrum in pulses was performed. It was established that combinations of these parameters, which provide the possibility of inverting the population of the excitation levels of Gd-156 isotope nuclei were largely determined by the energy neutron flux spectrum in pulses.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2021
Subjects:
электронный ресурс
труды учёных ТПУ
neutron capture
neutron pumping
gadolinium isotopes
isomeric state
нейтроны
изотопы
изомерные состояния
Online Access:https://doi.org/10.1016/j.apradiso.2021.109649
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664252

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