First dust study in JET with the ITER-like wall: Sampling, analysis and classification

TY - JOUR

T1 - First dust study in JET with the ITER-like wall

T2 - Sampling, analysis and classification

AU - Baron-Wiechec, A.

AU - Fortuna-Zales̈na, E.

AU - Grzonka, J.

AU - Rubel, M.

AU - Widdowson, A.

AU - Ayres, C.

AU - Coad, J. P.

AU - Hardie, C.

AU - Heinola, K.

AU - Matthews, G. F.

N1 - Publisher Copyright: © 2015 EURATOM.

PY - 2015/10/15

Y1 - 2015/10/15

N2 - Results of the first dust survey in JET with the ITER-Like Wall (JET-ILW) are presented. The sampling was performed using adhesive stickers from the divertor tiles where the greatest material deposition was detected after the first JET-ILW campaign in 2011-2012. The emphasis was especially on sampling and analysis of metal particles (Be and W) with the aim to determine the composition, size, surface topography and internal dust structure using a large set of methods: high-resolution scanning and transmission electron microscopy, focused ion beam, electron diffraction and also wavelength and energy dispersive x-ray spectroscopy. The most important was the identification of beryllium dust both in the form of flakes and droplets with dimensions in the micrometer range. Tungsten, molybdenum, inconel constituents were identified along with many impurity species. The particles are categorised and the origin of the various constituents discussed.

AB - Results of the first dust survey in JET with the ITER-Like Wall (JET-ILW) are presented. The sampling was performed using adhesive stickers from the divertor tiles where the greatest material deposition was detected after the first JET-ILW campaign in 2011-2012. The emphasis was especially on sampling and analysis of metal particles (Be and W) with the aim to determine the composition, size, surface topography and internal dust structure using a large set of methods: high-resolution scanning and transmission electron microscopy, focused ion beam, electron diffraction and also wavelength and energy dispersive x-ray spectroscopy. The most important was the identification of beryllium dust both in the form of flakes and droplets with dimensions in the micrometer range. Tungsten, molybdenum, inconel constituents were identified along with many impurity species. The particles are categorised and the origin of the various constituents discussed.

KW - ITER-like wall

KW - JET

KW - beryllium

KW - dust

KW - tungsten erosion-deposition

UR - http://www.scopus.com/inward/record.url?scp=84946048382&partnerID=8YFLogxK

U2 - 10.1088/0029-5515/55/11/113033

DO - 10.1088/0029-5515/55/11/113033

M3 - 文章

AN - SCOPUS:84946048382

SN - 0029-5515

VL - 55

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 11

M1 - 113033

ER -