Zobrazeno 1 - 10 of 35 pro vyhledávání: '"S Dickheuer"'
1
On the use of rhodium mirrors for optical diagnostics in ITER
Autor: Maarten De Bock, Dieter Leichtle, Christian Linsmeier, S. Dickheuer, Philippe Mertens, A. Krimmer, Kim Liegeois, Andrey Litnovsky, Romain Boman, O. Marchuk, Marcin Rasinski, Yury Krasikov
Publikováno v: Fusion Engineering and Design. 146:2514-2518
The first mirrors of optical diagnostics in ITER are exposed to high radiation and fluxes of particles which escape the plasma, in the order of 1020 m−2s−1. At the position of the mirror, the flux may still reach about 1018 m−2s−1. First mirr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b2d7526b35436a735dc26787f4b09e1a
https://doi.org/10.1016/j.fusengdes.2019.04.031
Zobrazit plný text záznamu
2
Measurements of the energy distribution of W atoms sputtered by low energy Ar ions using high-resolution Doppler spectroscopy
Autor: Petra Boerner, S. Brezinsek, S. Dickheuer, S. Ertmer, Oleksandr Marchuk, Janina Schmitz, Arkadi Kreter
Publikováno v: Plasma physics and controlled fusion 63(1), 015008 (2021). doi:10.1088/1361-6587/abc519
Plasma Physics and Controlled Fusion
Emission spectra of neural tungsten (W) sputtered by impact of argon (Ar) ions in a weakly magnetized ( The obtained energy distribution was found in a very good agreement with the Thompson distribution, even though deviations for lower impact energi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12521b8cb132ef226e3cf219d05997b0
https://hdl.handle.net/2128/27141
Zobrazit plný text záznamu
4
In situ measurement of the spectral reflectance of mirror-like metallic surfaces during plasma exposition
Autor: S. Ertmer, Oleksandr Marchuk, Yury Krasikov, A. Goriaev, Mykola Ialovega, S. Dickheuer, Arkadi Kreter, Philippe Mertens, B. Göths
Publikováno v: Nuclear Materials and Energy, Vol 17, Iss, Pp 302-306 (2018)
Nuclear Materials and Energy
Nuclear materials and energy 17, 302-306 (2018). doi:10.1016/j.nme.2018.11.012
Visible spectroscopy in fusion plasmas crucially depends on the optical properties of first mirrors withstanding a considerable amount of radiation and particle fluxes. As a result of this interaction the optical properties of the mirrors could be ch
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29b06e5234126104b7feff7439a41a7d
https://doi.org/10.1016/j.nme.2018.11.012
Zobrazit plný text záznamu
5
ERO2.0 modelling of the effects of surface roughness on molybdenum erosion and redeposition in the PSI-2 linear plasma device
Autor: David Tskhakaya, Espedito Vassallo, Karl Schmid, Arkadi Kreter, Juri Romazanov, Ch. Linsmeier, S. Dickheuer, A. Pospieszczyk, A. Eksaeva, David Dellasega, Marcin Rasinski, Alexis Terra, S. S. Henderson, D. Borodin, M. Sala, M. G. O'Mullane, F. Romeo, M. Eichler, A. Kirschner, Sören Möller, B. Unterberg, U. Knoche, Matteo Passoni, M. Pedroni, B. Göths, H. P. Summers, I. Borodkina, S. Brezinsek
Publikováno v: Physica Scripta
Physica scripta
T171 (2020): 014057-1–014057-8. doi:10.1088/1402-4896/ab5810
info:cnr-pdr/source/autori:Eksaeva A.; Borodin D.; Romazanov J.; Kreter A.; Pospieszczyk A.; Dickheuer S.; Möller S.; Göths B.; Rasinski M.; Knoche U.; Terra A.; Kirschner A.; Borodkina I.; Eichler M.; Unterberg B.; Brezinsek S.; Linsmeier Ch.; Vassallo E.; Pedroni M.; Passoni M.; Dellasega D.; Sala M.; Romeo F.; Henderson S.; MO'Mullane M.; Summers H.; Tskhakaya D.; Schmid K./titolo:ERO2.0 modelling of the effects of surface roughness on molybdenum erosion and redeposition in the PSI-2 linear plasma device/doi:10.1088%2F1402-4896%2Fab5810/rivista:Physica scripta (Print)/anno:2020/pagina_da:014057-1/pagina_a:014057-8/intervallo_pagine:014057-1–014057-8/volume:T171
Physica scripta T171, 014057-(2020). doi:10.1088/1402-4896/ab5810
The surface morphology of plasma-facing components (PFCs) and its evolution during plasma irradiation has been shown to have a significant effect on the erosion and subsequent transport of sputtered particles in plasma. This in turn can influence the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f131f36bc8836757bbe9d9f6b98c126
Zobrazit plný text záznamu
6
Light-reflection-induced changes in the line shape of sputtered atoms
Autor: Oleksandr Marchuk, S. Ertmer, S. Brezinsek, S. Dickheuer, Arkadi Kreter, Marcin Rasinski
Publikováno v: Physica scripta T171, 014031-(2020). doi:10.1088/1402-4896/ab4923
Physica Scripta
The erosion from plasma-facing components has to be monitored in many kind of laboratory and fusion plasmas. For this purpose, spectroscopy is an essential tool. Under certain conditions the particle flux can be calculated from the absolute line inte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9671b68a45511cb36ccaa761287eee71
https://hdl.handle.net/2128/25221
Zobrazit plný text záznamu
7
Emission of Fast Hydrogen Atoms in a Low Density Gas Discharge—The Most 'Natural' Mirror Laboratory
Autor: Oleksandr Marchuk, Yuri Krasikov, S. Brezinsek, Mykola Ialovega, Arkadi Kreter, Philippe Mertens, S. Dickheuer, A. Goriaev, Christian Linsmeier, B. Göths, Christian Brandt, S. Ertmer
Publikováno v: Atoms
Atoms, Vol 7, Iss 3, p 81 (2019)
Atoms 7(3), 81-(2019). doi:10.3390/atoms7030081
Volume 7
Issue 3
In this work, we present a new application for the line shapes of emission induced by reflected hydrogen atoms. Optical properties of the solids in contact with the plasma could be effectively measured at the wavelength of Balmer lines: time-resolved
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72af4e224b2fc69b19b84df099be4aa2
Zobrazit plný text záznamu
8
Polarization by light reflection at metallic surfaces observed in the shape of the Balmer- α line of low density plasmas
Autor: Detlev Reiter, S. Dickheuer, Philippe Mertens, Oleksandr Marchuk, Yuri Krasikov, P. Börner, Arkadi Kreter, B. Göths, Kalle von Bovert, Christian Brandt, S. Ertmer
Publikováno v: Physics of Plasmas
Physics of plasmas 26(7), 073513-(2019). doi:10.1063/1.5088931
The degree of linear polarization of light reflected at metallic surfaces is obtained from the shape of the Balmer-α line measured in a low density plasma. The measurements of the polarization properties of metallic surfaces utilize only the high-re
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fb3d8f4f5b107d35cd8c0b21a29fe6a
Zobrazit plný text záznamu
9
Measurement of the Magnetic Field in a Linear Magnetized Plasma by Tunable Diode Laser Absorption Spectroscopy
Autor: Oleksandr Marchuk, Tsanko V. Tsankov, Uwe Czarnetzki, Dirk Luggenhölscher, Arkadi Kreter, S. Dickheuer, Wojciech Gromelski, S. Ertmer
Publikováno v: Atoms 7(2), 48-(2019). doi:10.3390/atoms7020048
Atoms
Volume 7
Issue 2
Atoms, Vol 7, Iss 2, p 48 (2019)
Tunable diode laser absorption spectroscopy (TDLAS) is a commonly used technique to measure the temperature and density of atoms or molecules in a gas. In this work, we demonstrate that the TDLAS diagnostics could be effectively applied to measure th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0df29908585722f61c8d779a396724a
https://hdl.handle.net/2128/22527
Zobrazit plný text záznamu
10
Emission of fast non-Maxwellian hydrogen atoms in low-density laboratory plasma
Autor: Oleksandr Marchuk, Christian Brandt, A. Pospieszczyk, S. Dickheuer
Publikováno v: AIP Conference Proceedings
The source of strong and broad emission of the Balmer-α line in mixed plasmas of hydrogen (or deuterium) and noble gases in front of metallic surfaces is a subject of controversial discussion of many plasma types. In this work the excitation source
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6337609cf52be4cf48b1b18b30960bbb
https://doi.org/10.1063/1.4975736
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje