Home > Publications database > Synergistic Effects of ELMs and Steady State H and H/He Irradiation on Tungsten > print |
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100 | 1 | _ | |a Lemahieu, Nathan |0 P:(DE-Juel1)145757 |b 0 |e Corresponding author |
245 | _ | _ | |a Synergistic Effects of ELMs and Steady State H and H/He Irradiation on Tungsten |
260 | _ | _ | |a New York, NY [u.a.] |c 2015 |b Elsevier |
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520 | _ | _ | |a To investigate synergistic effects of high heat flux loading on H and H/He loaded tungsten surfaces, specimens were exposed to a 30 keV steady-state H or H/He beam and subsequently loaded with an electron beam to simulate ELMs. The heat flux during the H and H/He loading was 10.5 MW m−2, while a 2 × 1025 m−2 fluence was reached. After exposure, all specimens exhibited an altered surface morphology. The H/He samples with a surface temperature of 1000 °C and 1500 °C had a multitude of surface extrusions. Afterwards the particle loaded samples were exposed to 100 ELM-like pulses around the material's damage threshold. Transient heat fluxes of 190 MW m−2 and 380 MW m−2 were applied at room temperature and 400 °C for a duration of 1 ms. Post-mortem analysis showed no deterioration of thermal shock resistance in comparison with polished material. For some tests the reference specimens roughened or cracked while the H or H/He exposed material had no damage. The H-content and the H/He-induced cavities and/or extrusions are suggested as two potential causes for this change in material behaviour. |
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700 | 1 | _ | |a Greuner, Henri |0 P:(DE-HGF)0 |b 1 |
700 | 1 | _ | |a Linke, Jochen |0 P:(DE-Juel1)129747 |b 2 |
700 | 1 | _ | |a Maier, Hans |0 P:(DE-HGF)0 |b 3 |
700 | 1 | _ | |a Pintsuk, Gerald |0 P:(DE-Juel1)129778 |b 4 |
700 | 1 | _ | |a Van Oost, Guido |0 P:(DE-Juel1)130180 |b 5 |
700 | 1 | _ | |a Wirtz, Marius |0 P:(DE-Juel1)129811 |b 6 |
773 | _ | _ | |a 10.1016/j.fusengdes.2015.06.051 |g Vol. 98-99, p. 2020 - 2024 |0 PERI:(DE-600)1492280-0 |p 2020 - 2024 |t Fusion engineering and design |v 98-99 |y 2015 |x 0920-3796 |
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