Artículo
Studies of dust from JET with the ITER-Like Wall: Composition and internal structure
Autor/es | Fortuna Zalesna, E.
Grzonka, J. Rubel, M. García Carrasco, A. Widdowson, A. Jet Contributors García Muñoz, Manuel |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2017 |
Fecha de depósito | 2020-08-25 |
Publicado en |
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Resumen | Results are presented for the dust survey performed at JET after the second experimental campaign with the ITER-Like Wall: 2013–2014. Samples were collected on adhesive stickers from several different posi- tions in the ... Results are presented for the dust survey performed at JET after the second experimental campaign with the ITER-Like Wall: 2013–2014. Samples were collected on adhesive stickers from several different posi- tions in the divertor both on the tiles and on the divertor carrier. Brittle dust-forming deposits on test mirrors from the inner divertor wall were also studied. Comprehensive characterization accomplished by a wide range of high-resolution microscopy techniques, including focused ion beam, has led to the iden- tification of several classes of particles: (i) beryllium flakes originating either from the Be coatings from the inner wall cladding or Be-rich mixed co-deposits resulting from material migration; (ii) beryllium droplets and splashes; (iii) tungsten and nickel-rich (from Inconel) droplets; (iv) mixed material layers with a various content of small (8–200 nm) W-Mo and Ni-based debris. A significant content of nitrogen from plasma edge cooling has been identified in all types of co-deposits. A comparison between particles collected after the first and second experimental campaign is also presented and discussed. |
Identificador del proyecto | 633053 |
Cita | Fortuna Zalesna, E., Grzonka, J., Rubel, M., García Carrasco, A., Widdowson, A., Jet Contributors, y García Muñoz, M. (2017). Studies of dust from JET with the ITER-Like Wall: Composition and internal structure. Nuclear Materials and Energy, 12, 582-587. |
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