Comparison of Deuterium Retention in Tungsten Pre-damaged with Energetic Electrons, Self-ions and Neutrons

The objective of this work is to compare the deuterium retention in tungsten pre-damaged with electron (e) beam, ions and neutrons. Self-ion irradiation was performed at IPP (Garching) and e-beam irradiation at MEPhI (Moscow). Neutron irradiation was done at Oak Ridge National Laboratory in high-flux isotope reactor (HFIR) by Hatano et al. (2013). After pre-damaging, specimens were exposed to deuterium plasma in well-defined laboratory conditions.