Abstract
| Original language | English |
|---|---|
| Pages (from-to) | S1187-S1191 |
| Number of pages | 5 |
| Journal | Journal of Nuclear Materials |
| Volume | 438 |
| Issue number | Supplement |
| DOIs | |
| Publication status | Published - 2013 |
| MoE publication type | A1 Journal article-refereed |
| Event | 20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices - Aachen, Aachen, Germany Duration: 21 May 2012 → 25 May 2012 |
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Performances of Rh and Mo mirrors under JET exposure. / Marot, L. (Corresponding Author); Meyer, E.; Rubel, M.; Ivanova, D.; Widdowson, A.; Coad, J.P.; Likonen, Jari; Hakola, Antti; Koivuranta, Seppo; De Temmerman, G.; JET-EFDA collaborators.
In: Journal of Nuclear Materials, Vol. 438, No. Supplement, 2013, p. S1187-S1191.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Performances of Rh and Mo mirrors under JET exposure
AU - Marot, L.
AU - Meyer, E.
AU - Rubel, M.
AU - Ivanova, D.
AU - Widdowson, A.
AU - Coad, J.P.
AU - Likonen, Jari
AU - Hakola, Antti
AU - Koivuranta, Seppo
AU - De Temmerman, G.
AU - JET-EFDA collaborators
PY - 2013
Y1 - 2013
N2 - The aim of this work was to provide a comprehensive surface characterization of rhodium and molybdenum mirrors exposed on the main chamber wall of JET during campaigns with carbon plasma-facing components. As determined using X-ray photoelectron spectroscopy, Secondary Ion Mass Spectrometry, Scanning Electron Microscopy and optical measurements the co-deposits formed on the mirrors were composed of C, Be, Ni, Mo and Fe. Most of the metallic elements on the surface were in the oxidized states. After removing a part of the film by sputtering with Ar+ ions, Mo carbide state was studied by XPS. The reflectivity measurements showed the dependence of the thickness of the deposited film on the optical properties of the mirror: a thinner film on the Mo mirrors results in an identical reduction in reflectivity as that seen on the exposed Rh mirror.
AB - The aim of this work was to provide a comprehensive surface characterization of rhodium and molybdenum mirrors exposed on the main chamber wall of JET during campaigns with carbon plasma-facing components. As determined using X-ray photoelectron spectroscopy, Secondary Ion Mass Spectrometry, Scanning Electron Microscopy and optical measurements the co-deposits formed on the mirrors were composed of C, Be, Ni, Mo and Fe. Most of the metallic elements on the surface were in the oxidized states. After removing a part of the film by sputtering with Ar+ ions, Mo carbide state was studied by XPS. The reflectivity measurements showed the dependence of the thickness of the deposited film on the optical properties of the mirror: a thinner film on the Mo mirrors results in an identical reduction in reflectivity as that seen on the exposed Rh mirror.
U2 - 10.1016/j.jnucmat.2013.01.262
DO - 10.1016/j.jnucmat.2013.01.262
M3 - Article
VL - 438
SP - S1187-S1191
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
IS - Supplement
ER -