TY - JOUR
T1 - Co-deposited layers in the divertor region of JET-ILW
AU - Petersson, P.
AU - Rubel, M.
AU - Esser, H.G.
AU - Likonen, Jari
AU - Koivuranta, Seppo
AU - Widdowson, A.
AU - JET-EFDA contributors
N1 - Project code: 104445
PY - 2015
Y1 - 2015
N2 - Tungsten-coated carbon tiles from a poloidal
cross-section of the divertor and several types of
erosion-
deposition probes from the shadowed areas in the divertor
were studied using heavy ion elastic recoil
detection to obtain quantitative and depth-resolved
deposition patterns. Deuterium, beryllium, carbon,
nitrogen and oxygen along with tungsten and Inconel
components are the main species detected in
the studied surface region. The top of Tile 1 in the
inner divertor is the main deposition area where
the greatest amounts of deposited species are measured.
Beryllium and tungsten-containing deposits
on the probes (test mirrors and quartz microbalance)
indicate that both low-Z and high-Z metals are
transported to remote areas. Deposition of nitrogen-15
tracer used for edge cooling only at the end of
experimental campaigns in 2012 was also detected giving
evidence that nitrogen is effectively retained
in wall components.
AB - Tungsten-coated carbon tiles from a poloidal
cross-section of the divertor and several types of
erosion-
deposition probes from the shadowed areas in the divertor
were studied using heavy ion elastic recoil
detection to obtain quantitative and depth-resolved
deposition patterns. Deuterium, beryllium, carbon,
nitrogen and oxygen along with tungsten and Inconel
components are the main species detected in
the studied surface region. The top of Tile 1 in the
inner divertor is the main deposition area where
the greatest amounts of deposited species are measured.
Beryllium and tungsten-containing deposits
on the probes (test mirrors and quartz microbalance)
indicate that both low-Z and high-Z metals are
transported to remote areas. Deposition of nitrogen-15
tracer used for edge cooling only at the end of
experimental campaigns in 2012 was also detected giving
evidence that nitrogen is effectively retained
in wall components.
UR - https://www.sciencedirect.com/journal/journal-of-nuclear-materials/vol/463/suppl/C
U2 - 10.1016/j.jnucmat.2014.12.077
DO - 10.1016/j.jnucmat.2014.12.077
M3 - Article
SN - 0022-3115
VL - 463
SP - 814
EP - 817
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
ER -