Publication:
Helium isotope exchange in tungsten irradiated sequentially with 4He and 3He ions

Дата
2023
Авторы
Harutyunyan, Z.
Gasparyan, Y.
Efimov, V.
Krat, S.
Umerenkova, A.
Journal Title
Journal ISSN
Volume Title
Издатель
Научные группы
Организационные подразделения
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Организационная единица
Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
Выпуск журнала
Аннотация
Helium (He) isotope exchange in tungsten (W) during sequential irradiation by 3 keV 4He and 3He ions at room (RT) and elevated temperatures (700-1200 K) was investigated. The total He fluence was in the range of 5 × 1021–1.8 × 1022 He/m2 to provide a saturation of the surface layer. The amount of He retained in W after irradiation was measured using in-situ (up to 1500 K) and ex-situ (up to 2500 K) thermal desorption spectroscopy (TDS). Air exposure influenced TDS spectra, but clear were no noticeable differences between 3He and 4He TDS spectra after single irradiation. Subsequent irradiation with different He isotopes demonstrated a very efficient isotope exchange already at room temperature. The substitution of He atoms goes even faster with increasing irradiation temperature. Mechanisms of observed processes are discussed on the base of a simple model. © 2022
Описание
Ключевые слова
Helium isotopes , Implantation , Isotope exchange , Nuclear fusion , Retention , Thermal desorption spectroscopy , Tungsten
Цитирование
Helium isotope exchange in tungsten irradiated sequentially with 4He and 3He ions / Harutyunyan, Z. [et al.] // Journal of Nuclear Materials. - 2023. - 573. - 10.1016/j.jnucmat.2022.154094
URI
https://www.doi.org/10.1016/j.jnucmat.2022.154094
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85141002608&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000904365900001
 https://openrepository.mephi.ru/handle/123456789/29868
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