Publications of C. Wimmer

Wimmer, C.; Fantz, U.; Aza, E.; Jovovic, J.; Kraus, W.; Mimo, A.; Schiesko, L.: Investigation of plasma parameters at BATMAN for variation of the Cs evaporation asymmetry and comparing two driver geometries. AIP Conference Proceedings 1869 (1), 030021 (2017)

Tsumori, K.; Ikeda, K.; Nakano, H.; Kisaki, M.; Geng, S.; Wada, M.; Sasaki, K.; Nishiyama, S.; Goto, M.; Serianni, G. et al.; Agostinetti, P.; Sartori, E.; Brombin, M.; Veltri, P.; Wimmer, C.; Nagaoka, K.; Osakabe, M.; Takeiri, Y.; Kaneko, O.: Negative ion production and beam extraction processes in a large ion source (invited). Review of Scientific Instruments 87, 02B936 (2016)

Wimmer, C.; Fantz, U.; NNBI Team, Max Planck Institute for Plasma Physics, Max Planck Society: Extraction of negative charges from an ion source: Transition from an electron repelling to an electron attracting plasma close to the extraction surface. Journal of Applied Physics 120, 073301 (2016)

Wimmer, C.; Schiesko, L.; Fantz, U.: Investigation of the boundary layer during the transition from volume to surface dominated H^- production at the BATMAN test facility. Review of Scientific Instruments 87, 02B310 (2016)

Wünderlich, D.; Fantz, U.; Heinemann, B.; Kraus, W.; Riedl, R.; Wimmer, C.; NNBI Team, Max Planck Institute for Plasma Physics, Max Planck Society: Progress of the ELISE test facility: towards one hour pulses in hydrogen. Nuclear Fusion 56, 106004 (2016)

Fantz, U.; Franzen, P.; Kraus, W.; Schiesko, L.; Wimmer, C.; Wünderlich, D.: Size Scaling of Negative Hydrogen Ion Sources for Fusion. AIP Conference Proceedings 1655, 040001 (2015)

Wimmer, C.; Fantz, U.; NNBI Team, Max Planck Institute for Plasma Physics, Max Planck Society: Dependence of the source performance on plasma parameters at the BATMAN test facility. AIP Conference Proceedings 1655, 040004 (2015)

Wünderlich, D.; Wimmer, C.; Friedl, R.: A collisional radiative model for caesium and its application to an RF source for negative hydrogen ions. AIP Conference Proceedings 1655, 020006 (2015)

Wünderlich, D.; Wimmer, C.; Friedl, R.: A collisional radiative model for low-pressure hydrogen–caesium plasmas and its application to an RF source for negative hydrogen ions. Journal of Quantitative Spectroscopy and Radiative Transfer 149, pp. 360 - 371 (2014)

Franzen, P.; Heinemann, B.; Fantz, U.; Wünderlich, D.; Kraus, W.; Fröschle, M.; Martens, C.; Riedl, R.; Nocentini, R.; Masiello, A. et al.; Ruf, B.; Schiesko, L.; Wimmer, C.; NNBI Team: Commissioning and first results of the ITER-relevant negative ion beam test facility ELISE. Fusion Engineering and Design 88 (12), pp. 3132 - 3140 (2013)

Heinemann, B.; Fantz, U.; Franzen, P.; Froeschle, M.; Kraus, W.; Martens, C.; Nocentini, R.; Riedl, R.; Ruf, B.; Schiesko, L. et al.; Wimmer, C.; Wuenderlich, D.; NNBI-Team: Negative ion test facility ELISE - Status and first results. Fusion Engineering and Design 88 (6-8), pp. 512 - 516 (2013)

Briefi, S.; Wimmer, C.; Fantz, U.: Correction factors for saturation effects in white light and laser absorption spectroscopy for application to low pressure plasmas. Physics of Plasmas 19, 053501 (10pp) (2012)

Fantz, U.; Wimmer, C.: Cesium dynamics in long pulse operation of negative hydrogen ion sources for fusion. Review of Scientific Instruments 83, 02B110 (3pp) (2012)

Fantz, U.; Wimmer, C.: Optimizing the laser absorption technique for quantification of caesium densities in negative hydrogen ion sources. Journal of Physics D: Applied Physics 44, 335202 (12pp) (2011)

Gutser, R.; Wimmer, C.; Fantz, U.: Work function measurements during plasma exposition at conditions relevant in negative ion sources for the ITER neutral beam injection. Review of Scientific Instruments 82, 023506 (7pp) (2011)

Fantz, U.; Gutser, R.; Wimmer, C.: Fundamental experiments on evaporation of caesium in ion sources. Review of Scientific Instruments 81, 02B102 (4pp) (2010)

Jahnke, T.; Czasch, A.; Schöffler, M. S.; Schössler, S.; Knapp, A.; Käsz, M.; Titze, J.; Wimmer, C.; Kreidi, K.; Grisenti, R. E. et al.; Staudte, A.; Jagutzki, O.; Hergenhahn, U.; Schmidt-Böcking, H.; Dörner, R.: Experimental Observation of Interatomic Coulombic Decay in Neon Dimers. Physical Review Letters 93, 163401 (2004)

Stockli, M. P.; Faircloth, D.; Kraus, W.; Ando, A.; Bollinger, D. S.; Briefi, S.; Fantz, U.; Friedl, R.; Kashiwagi, M.; King, D. et al.; Koivisto, H.; Han, B. X.; Lettry, J.; Takeiri, Y.; Tarvainen, O.; Tsumori, K.; Welton, R. F.; Wimmer, C.: Workshop on performance variations in H⁻ ion sources 2012: PV H⁻12. In: Third International Symposium on Negative Ions, Beams and Sources (NIBS 2012), pp. 594 - 597 (Eds. Tarvainen, O.; Kalvas, T.). American Institute of Physics, Melville, TN (2013)

Wimmer, C.; Fantz, U.; NNBI-Team: Cesium dynamics and H^- density in the extended boundary layer of negative hydrogen ion sources for fusion. In: Third International Symposium on Negative Ions, Beams and Sources (NIBS 2012), pp. 246 - 254 (Eds. Tarvainen, O.; Kalvas, T.). American Institute of Physics, Melville, TN (2013)

Barnes, M.; Harder, N. d.; Navarro, A.; Wimmer, C.; Wünderlich, D.; Fantz, U.; NNBI Team, Max Planck Institute for Plasma Physics, Max Planck Society: Direct Comparison of H^- and D^- Single Beamlet Divergence in View of ITER's NBI System. In: 49th EPS Conference on Plasma Physics, P2.051 (Eds. Le Pape, S.; Bolzonella, T.; Passot, T.; Lehman, G.; Pustylnik, M. et al.). 49th EPS Conference on Plasma Physics, Bordeaux, July 03, 2023 - July 07, 2023. European Physical Society, Geneva (2023)