Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Henric Bergsåker"'
Autor:
Pablo Vallejos Olivares, E. Stefanikova, Per Petersson, E. Tholerus, Svetlana V. Ratynskaia, Marek Rubel, Alvaro Garcia-Carrasco, Y. Zhou, I. Zychor, S. Menmuir, Thomas Johnson, Henric Bergsåker, Panagiotis Tolias, Petter Ström, A. Baron-Wiechec, Elisabeth Rachlew, A. Weckmann, Lorenzo Frassinetti, Torbjörn Hellsten, Igor Bykov
Publikováno v:
Fusion Engineering and Design
Baron-Wiechec, A, Heinola, K, Likonen, J, de Alves, E, Catarino, N, Corregidor, V, Coad, P, Jepu, I, Matthews, G & Widdowson, A 2018, ' Thermal desorption spectrometry of beryllium plasma facing tiles exposed in the JET tokamak ', Fusion Engineering and Design, vol. 133, pp. 135–141 . https://doi.org/10.1016/j.fusengdes.2018.05.075
Baron-Wiechec, A, Heinola, K, Likonen, J, de Alves, E, Catarino, N, Corregidor, V, Coad, P, Jepu, I, Matthews, G & Widdowson, A 2018, ' Thermal desorption spectrometry of beryllium plasma facing tiles exposed in the JET tokamak ', Fusion Engineering and Design, vol. 133, pp. 135–141 . https://doi.org/10.1016/j.fusengdes.2018.05.075
Corrigendum: 10.1016/j.fusengdes.2018.08.007. The phenomena of retention and de-trapping of deuterium (D) and tritium (T) in plasma facing components (PFC) and supporting structures must be understood in order to limit or control total T inventory in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::905099bf7857df8f8f3021c213d26e62
https://doi.org/10.1016/j.fusengdes.2018.05.075
https://doi.org/10.1016/j.fusengdes.2018.05.075
Autor:
G. Possnert, Igor Bykov, Seppo Koivuranta, Anna Widdowson, J. Likonen, Per Petersson, Jean Pettersson, Henric Bergsåker, Yushan Zhou
Publikováno v:
Nuclear Materials and Energy, Vol 12, Iss, Pp 412-417 (2017)
Nuclear Materials and Energy
Zhou, Y, Bergsåker, H, Bykov, I, Petersson, P, Possnert, G, Likonen, J, Pettersson, J, Koivuranta, S, Widdowson, A & JET Contributors 2017, ' Microanalysis of deposited layers in the inner divertor of JET with ITER-like wall ', Nuclear Materials and Energy, vol. 12, pp. 412-417 . https://doi.org/10.1016/j.nme.2017.02.015
Nuclear Materials and Energy
Zhou, Y, Bergsåker, H, Bykov, I, Petersson, P, Possnert, G, Likonen, J, Pettersson, J, Koivuranta, S, Widdowson, A & JET Contributors 2017, ' Microanalysis of deposited layers in the inner divertor of JET with ITER-like wall ', Nuclear Materials and Energy, vol. 12, pp. 412-417 . https://doi.org/10.1016/j.nme.2017.02.015
In JET with ITER-like wall, beryllium eroded in the main chamber is transported to the divertor and deposited mainly at the horizontal surfaces of tiles 1 and 0 (high field gap closure, HFGC). These surfaces are tungsten coated carbon fibre composite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3602cfc587b6febc0191ce4c13d28c0a
https://doi.org/10.1016/j.nme.2017.02.015
https://doi.org/10.1016/j.nme.2017.02.015
Publikováno v:
Nuclear Materials and Energy
Nuclear Materials and Energy, Vol 19, Iss, Pp 155-160 (2019)
Zhou, Y, Bergsåker, H, Petersson, P, Possnert, G, Likonen, J & JET EUROfusion Consortium 2019, ' The effect of gyration on the deposition of beryllium and deuterium at rough surface on the divertor tiles with ITER-like-wall in JET ', Nuclear Materials and Energy, vol. 19, pp. 155-160 . https://doi.org/10.1016/j.nme.2019.02.025
Nuclear Materials and Energy, Vol 19, Iss, Pp 155-160 (2019)
Zhou, Y, Bergsåker, H, Petersson, P, Possnert, G, Likonen, J & JET EUROfusion Consortium 2019, ' The effect of gyration on the deposition of beryllium and deuterium at rough surface on the divertor tiles with ITER-like-wall in JET ', Nuclear Materials and Energy, vol. 19, pp. 155-160 . https://doi.org/10.1016/j.nme.2019.02.025
Experimental results from microbeam analyses on divertor tiles, through 2011-2012 and 2013-2014 operations in JET-ILW, showed that the deuterium retention and beryllium impurity deposition were non-uniform on the rough surface in micro meter scale. F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ef61c9f0222cca5fd1e5e696d575bbf
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-389871
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-389871
Autor:
Per Petersson, Henric Bergsåker, Seppo Koivuranta, G. Possnert, Igor Bykov, J. P. Coad, Anna Widdowson, J. Likonen
Publikováno v:
Bergsåker, H, Bykov, I, Petersson, P, Possnert, G, Likonen, J, Koivuranta, S, Coad, J P & Widdowson, A M 2014, ' Microstructure and inhomogeneous fuel trapping at divertor surfaces in the JET tokamak ', Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, vol. 332, no. August, pp. 266-270 . https://doi.org/10.1016/j.nimb.2014.02.075
The plasma deposited layers at divertor surfaces in the JET tokamak with carbon wall have been studied post mortem, using micro ion beam analysis (µ-IBA) methods, optical microscopy and scanning electron microscopy (SEM). The layers were formed duri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27123dad8705b1377649450fab29a1a9
https://doi.org/10.1016/j.nimb.2014.02.075
https://doi.org/10.1016/j.nimb.2014.02.075
Autor:
Andrey Litnovsky, G. Possnert, Svetlana V. Ratynskaia, Henric Bergsåker, Per Petersson, Igor Bykov
Publikováno v:
Journal of Nuclear Materials. 438:S681-S685
Moving dust has been collected in the SOL of TEXTOR in a time-resolved way with silica aerogel collectors [1-3]. The collectors were exposed to the toroidal particle flux in NBI heated discharges d ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3d159737338d78d7892a6bcb487e798
https://doi.org/10.1016/j.jnucmat.2013.01.144
https://doi.org/10.1016/j.jnucmat.2013.01.144
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 273:250-253
The trapping and retention of tritium in deposited layers on plasma-facing components is a critical issue for the international tokamak experimental reactor (ITER) and for future power producing tokamak fusion reactors. Cross sections of deposited la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6f7c65e6ed09b0775f324961de18e36
https://doi.org/10.1016/j.nimb.2011.07.087
https://doi.org/10.1016/j.nimb.2011.07.087
Publikováno v:
Journal of Nuclear Materials. 415:S1089-S1093
Dust capture with ultralow density silica aerogel collectors is a new method, which allows time resolved in situ capture of dust particles in the scrape-off layers of fusion devices, without substantially damaging the particles. Particle composition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d0663b5195f5e53340401d48da22aeb
https://doi.org/10.1016/j.jnucmat.2011.01.052
https://doi.org/10.1016/j.jnucmat.2011.01.052
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 266:2429-2432
Elastic recoil detection analysis using heavy ions with a scanning nuclear microprobe was applied to determine the content of hydrogen isotopes in carbon material facing fusion plasma in the JET fu ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5692476af22f52e2a91eace75451b35
https://doi.org/10.1016/j.nimb.2008.03.059
https://doi.org/10.1016/j.nimb.2008.03.059
Autor:
J.P. Coad, Jari Likonen, Henric Bergsåker, T. Renvall, Göran Possnert, Per Petersson, Birger Emmoth
Publikováno v:
Bergsåker, H, Emmoth, B, Petersson, P, Possnert, G, Coad, J P, Likonen, J & Renvall, T 2007, ' Nuclear reaction analysis with ion microbeam of cross sections of surface layers deposited in a tokamak divertor ', Journal of Nuclear Materials, vol. 362, no. 2-3, pp. 215-221 . https://doi.org/10.1016/j.jnucmat.2007.01.046
Ion micro beam analysis has been applied to the investigation of plasma deposited layers covering the divertor tiles in the JET tokamak. Since the layers are about 100 μm thick they are too thick to be completely investigated by ordinary ion beam an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b23efd3529696c850004de15038a4c4
https://doi.org/10.1016/j.jnucmat.2007.01.046
https://doi.org/10.1016/j.jnucmat.2007.01.046
Publikováno v:
Journal of Nuclear Materials. 359:220-226
In this study, a method is presented based on mass spectroscopy to measure the areal density of deuterium on a graphite surface exposed to tokamak discharges. The studied sample was cut from a bumper limiter exposed in the TEXTOR tokamak and annealed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bc48dbaf942c7a1e4fa53aabcccd652
https://doi.org/10.1016/j.jnucmat.2006.09.001
https://doi.org/10.1016/j.jnucmat.2006.09.001