@article{7983,
  author = {S. Bardin and T. W. Morgan and X. Glad and R.A. Pitts and G. De Temmerman},
  title = {Evolution of transiently melt damaged tungsten under ITER-relevant divertor plasma heat loading},
  abstract = {A high-repetition-rate ELM simulation system was used at both the Pilot-PSI and Magnum-PSI linear plasma devices to investigate the nature of W damage under multiple shallow melt events and the subsequent surface evolution under ITER relevant plasma fluence and high ELM number. First, repetitive shallow melting of two W monoblocks separated by a 0.5 mm gap was obtained by combined pulsed/steady-state hydrogen plasma loading at normal incidence in the Pilot-PSI device. Surface modifications including melting, cracking and strong net-reshaping of the surface are obtained. During the second step, the pre-damaged W sample was exposed to a high flux plasma regime in the Magnum-PSI device with a grazing angle of 35°. SEM analysis indicates no measurable change to the surface state after the exposure in Magnum-PSI. An increase in transient-induced temperature rise of 40% is however observed, indicating a degradation of thermal properties over time.},
  year = {2015},
  journal = {Journal of Nuclear Materials},
  volume = {463},
  pages = {193 - 197},
  doi = {10.1016/j.jnucmat.2014.10.046},
  note = {PLASMA-SURFACE İNTERACTIONS\} 21 Proceedings of the 21st International Conference on Plasma-Surface Interactions in Controlled Fusion Devices Kanazawa, Japan May 26-30, 2014},
  language = {eng},
}