TY - JOUR
T1 - Microstructure and thermal desorption of deuterium in heavy-ion-irradiated pure tungsten
AU - Watanabe, Hideo
AU - Futagami, Naoki
AU - Naitou, Shiori
AU - Yoshida, Naoaki
N1 - Funding Information:
This work was performed with the support and under the auspices of the National Institute for Fusion Science (NIFS) Collaboration Research Program (NIFS11KUMR011). This work was also supported in part by the Collaborative Research Program of the Research Institute for Applied Mechanics, Kyushu University.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2014/12
Y1 - 2014/12
N2 - To understand the fundamental processes of deuterium retention and desorption of irradiated plasma facing materials, thermal desorption of deuterium in pure W with and without ion irradiation up to 2 dpa by 2.4 MeV Cu2+ have been investigated. After the ion irradiation at room temperature, high density of small interstitial typed dislocation loops and also nano-voids due to cascade collisions were detected by TEM observation. Thermal desorption of spectra of D showed that fine vacancy clusters are formed even at low fluence and at room temperature irradiation, these defects act as the strong trapping center of deuterium in the temperature range of 660-900 K.
AB - To understand the fundamental processes of deuterium retention and desorption of irradiated plasma facing materials, thermal desorption of deuterium in pure W with and without ion irradiation up to 2 dpa by 2.4 MeV Cu2+ have been investigated. After the ion irradiation at room temperature, high density of small interstitial typed dislocation loops and also nano-voids due to cascade collisions were detected by TEM observation. Thermal desorption of spectra of D showed that fine vacancy clusters are formed even at low fluence and at room temperature irradiation, these defects act as the strong trapping center of deuterium in the temperature range of 660-900 K.
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U2 - 10.1016/j.jnucmat.2014.03.060
DO - 10.1016/j.jnucmat.2014.03.060
M3 - Article
AN - SCOPUS:84898939274
SN - 0022-3115
VL - 455
SP - 51
EP - 55
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3
ER -