Publication: COMPARISON OF DEUTERIUM RETENTION IN TUNGSTEN PRE-DAMAGED WITH ENERGETIC ELECTRONS, SELF-IONS AND NEUTRONS
Дата
2015
Авторы
OGORODNIKOVA, O. V.
GANN, V.
ZIBROV, M.
GASPARYAN, Yu.
EFIMOV, V.
Journal Title
Journal ISSN
Volume Title
Издатель
НИЯУ МИФИ
Аннотация
Due to high melting temperature, low erosion yield and low retention of hydrogen isotopes, tungsten (W) is used as plasma-facing materials in present tokamaks as ASDEX Upgrade (AUG) [1] and JET [2] and selected to be used in future fusion devices as material facing to the plasma [3,4]. In previous works it was shown that pre-irradiation with self-ions [5-8] and with neutrons at high-flux isotope reactor (HFIR) [9,10] significantly increases the deuterium (D) retention in W. In the present work, we investigate the D retention in W in dependence on the pre-irradiation with different species. The objective of this work is to compare the deuterium retention in tungsten pre-damaged with electrons (e), ions and neutrons. Self-ion irradiation was performed at IPP (Garching) with 20 MeV W ions, e-beam irradiation at MEPhI (Moscow) with 3.5 MeV e-, and neutron irradiation at Oak Ridge National Laboratory in highflux isotope reactor (HFIR) [10]. After pre-damaging, specimens were exposed to deuterium plasma in well-defined laboratory conditions.
Описание
Ключевые слова
Конференции НИЯУ МИФИ
Цитирование
COMPARISON OF DEUTERIUM RETENTION IN TUNGSTEN PRE-DAMAGED WITH ENERGETIC ELECTRONS, SELF-IONS AND NEUTRONS [Текст.] / OGORODNIKOVA O.V. [и др.] // Взаимодействие плазмы с поверхностью: сборник научных трудов XVIII конференции. - 2015. - С. 88-91