Shuichi Takamura

TL;DR: In this paper, the authors describe the processes that will determine the properties of the plasma edge and its interaction with material elements in ITER and compare their predictions with the new experimental results.

TL;DR: Deeply nanostructured tungsten with an arborescent shape was found for the first time to be formed on Tungsten-coated graphite by high-flux helium plasma irradiation at surface temperatures of 1250 and 1600 K, an incident ion energy of 12 eV (well below the physical sputtering threshold) and a helium ion fluence of 3.5 × 1027 m-2 as discussed by the authors.

TL;DR: In this article, the formation mechanism of micron-sized He bubbles and holes in powder metallurgy tungsten due to helium ion irradiation with an ion energy below 30 eV and a particle flux above 1022 m−2 ǫ s−1 has been performed in the linear divertor plasma simulator NAGDIS-II.

TL;DR: In this article, a review of recent work in scrape-off layer (SOL) and divertor physics is presented, where new and existing data from a variety of experiments have been used to make cross-experiment comparisons with implications for further research and ITER.

TL;DR: In this paper, the static and dynamic behavior of detached recombining plasmas in the linear divertor plasma simulator NAGDIS-II was investigated. But the results of the analysis were limited to a single tokamak diveror.