Experimental study of PFCs erosion and eroded material deposition under ITER-like transient loads at the plasma gun facility QSPA-T
Experimental study of PFCs erosion and eroded material deposition under ITER-like transient loads at the plasma gun facility QSPA-T
The paper concerns experimental investigations of plasma facing components erosion under the plasma heat loads expected in ITER divertor during transient events such as the Type I Edge-Localized Modes and the disruptions. The experiments were carried out at the TRINITI plasma gun QSPA-T. The carbon...
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Personal Name(s): | Klimov, N. (Corresponding Author) |
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Podkovyrov, V. / Zhitlukhin, A. / Kovalenko, D. / Linke, J. / Pintsuk, G. / Landman, I. / Pestchanyi, S. / Bazylev, B. / Janeschitz, G. / Loarte, A. / Merola, M. / Hirai, T. / Federici, G. / Riccardi, B. / Mazul, I. / Giniyatulin, R. / Khimchenko, L. / Koidan, V. | |
Contributing Institute: |
Werkstoffstruktur und -eigenschaften; IEK-2 Heißes Materiallabor |
Published in: | Journal of nuclear materials, 415 (2011) 1, S. S59 - S64 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2011
|
DOI: |
10.1016/j.jnucmat.2011.01.013 |
Document Type: |
Journal Article |
Research Program: |
Plasma-wall interactions |
Publikationsportal JuSER |
The paper concerns experimental investigations of plasma facing components erosion under the plasma heat loads expected in ITER divertor during transient events such as the Type I Edge-Localized Modes and the disruptions. The experiments were carried out at the TRINITI plasma gun QSPA-T. The carbon fiber composite and tungsten macrobrush targets designed for ITER were exposed to multiple plasma pulses of duration 0.5 ms and deposited energy in the range of 0.2–2.5 MJ/m2. Between some of the pulses the eroded surface was analyzed with profilometric measurements and electron microscopy. The CFC erosion is determined mainly by damages to the PAN-fibers. While the energy increases from 0.2 to 2.4 MJ/m2 the removed layer of PAN-fibers area increases from 0.01 to 10 μm per pulse. The erosion of tungsten (pure and lanthanum oxide-doped tungsten) is shown to be determined mainly by crack formation, melt layer movement and droplets ejection. |