| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
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| Symposium
|
Radiation Effects in Metals and Ceramics
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| Presentation Title |
Dual Beam Irradiation of Tungsten Materials: Synergistic Effects and Comparison with Sequential and Single Beam Irradiation
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| Author(s) |
Osman El-Atwani, William Cunningham, Jason Trelewicz, Wei-Ying Chen, Meimei Li, Stuart Maloy |
| On-Site Speaker (Planned) |
Osman El-Atwani |
| Abstract Scope |
Performing detailed morphology analysis of tungsten surfaces under dual beam irradiation and investigating the synergistic effects of the different energetic beams are decisive steps to evaluate tungsten performance as a plasma material interface (PMI) in a reactor-similar environment. Here, we test fine grain tungsten under in-situ sequential beam irradiation (heavy ion irradiation followed by helium implantation or helium implantation followed by heavy ion irradiation) and compare the results to dual beam irradiation (simultaneous heavy ion irradiation and helium implantation). Loop type and damage profiles including loop density, loop area and overall damage are presented as a function of dose in every case. Void damage is also presented at the final dose. The results are also compared to single beam irradiation. The synergistic effects of the different energetic beams are elucidated and the importance of dual beam irradiation as a testing protocol for PMI materials is illustrated.
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| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |