EDGE2D-EIRENE predictions of molecular emission in DIII-D high-recycling divertor plasmas
| Autor: | P. Boerner, J.G. Watkins, S. Brezinsek, C.J. Lasnier, Morgan Shafer, Adam McLean, D. Harting, G. Corrigan, A.E. Jaervinen, Huiqian Wang, Cameron Samuell, S. Wiesen, M. Groth, Anthony Leonard, Eric Hollmann, Robert Wilcox, Detlev Reiter, M. A. Makowski, B. Lomanowski, Igor Bykov, M.E. Fenstermacher, S.L. Allen |
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| Přispěvatelé: | Fusion and Plasma Physics, Department of Applied Physics, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Nuclear and High Energy Physics
Materials science DIII-D Thomson scattering Materials Science (miscellaneous) 01 natural sciences Lyman-Werner and Fulcher band 010305 fluids & plasmas symbols.namesake Divertor edge fluid simulations 0103 physical sciences Radiative transfer EIRENE Langmuir probe 010302 applied physics ta114 Spectrometer EDGE2D-EIRENE Divertor Balmer series lcsh:TK9001-9401 Nuclear Energy and Engineering Deuterium Deuterium atomic and molecular emission symbols lcsh:Nuclear engineering. Atomic power Atomic physics |
| Zdroj: | Nuclear Materials and Energy, Vol 19, Iss, Pp 211-217 (2019) Nuclear Materials and Energy Groth, M, Hollmann, E M, Järvinen, A E, Leonard, A W, McLean, A G, Samuell, C M, Reiter, D, Allen, S L, Boerner, P, Brezinsek, S, Bykov, I, Corrigan, G, Fenstermacher, M E, Harting, D, Lasnier, C J, Lomanowski, B, Makowski, M A, Shafer, M W, Wang, H Q, Watkins, J G, Wiesen, S, Wilcox, R S & The DIII-D Team 2019, ' EDGE2D-EIRENE predictions of molecular emission in DIII-D high-recycling divertor plasmas ', Nuclear Materials and Energy, vol. 19, pp. 211-217 . https://doi.org/10.1016/j.nme.2019.02.035 |
| Popis: | The contributions of deuterium molecular emission to the total deuterium radiation was assessed in DIII-D ohmically-confined plasmas in high-recycling divertor conditions. Radial profiles of the deuterium Ly-α line intensity across the low-field side divertor leg were obtained with the recently installed divertor Survey Poor Resolution, Extended Spectrometer [1]. A high-resolution spectrometer was used to measure the poloidal profiles of the deuterium Balmer-α and the deuterium Fulcher-α band intensity in the visible wavelength range. The scrape-off layer plasma and neutral distributions were simulated using the edge fluid EDGE2D-EIRENE [2], and the numerical solutions constrained utilizing Thomson scattering and Langmuir probe measurements at the low-field side midplane and the divertor target plate. The studies show that for these conditions molecular emission plays a negligible role in the total radiative power balance of the low-field side divertor, but molecular processes are important when evaluating deuterium Balmer-α line intensity for code-experiment validation. Keywords: Deuterium atomic and molecular emission, Lyman-Werner and Fulcher band, DIII-D, Divertor edge fluid simulations, EDGE2D-EIRENE, EIRENE |
| Databáze: | OpenAIRE |
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