Publications of C. Wimmer

Wimmer, C.; Fantz, U.; NNBI-Team: Characteristics and Dynamics of the Extended Boundary Layer in RF-driven Sources for Negative Hydrogen Ions. HEPP Colloquium 2013, Strausberg (2013)

Nocentini, R.; Heinemann, B.; Fantz, U.; Franzen, P.; Froeschle, M.; Kraus, W.; Martens, C.; Riedl, R.; Ruf, B.; Schiesko, L. et al.; Wimmer, C.; Wuenderlich, D.; NNBI-Team: Development of a Large RF IonSource for the ITER Neutral Beam Injector: Project Overview and First Results of ELISE. 25th Symposium on Fusion Engineering (SOFE 2013), San Francisco, CA (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. 27th Symposium on Fusion Technology (SOFT 2012), Liège (2012)

Wimmer, C.; Fantz, U.; NNBI Team: Cesium Dynamics and H^--Density in the Extended Boundary Layer of Negative Hydrogen Ion Sources for Fusion. 3rd International Symposium on Negative Ions, Beams and Sources (NIBS 2012), Jyväskylä (2012)

Fantz, U.; Wimmer, C.; NNBI Team: Cesium dynamics in long pulse operation of negative hydrogen ion sources for fusion. 14th International Conference on Ion Sources (ICIS 2011), Giardini Naxos (2011)

Jahnke, T.; Czasch, A.; Schöffler, M.; 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. Physik seit Einstein - 69. Jahrestagung der Deutschen Physikalischen Gesellschaft (DPG) mit allen Fachverbänden und der Astronomischen Gesellschaft (AG), Berlin (2005)

Döring, A.; Wimmer, C.; Wünderlich, D.; Fröschle, M.; Nocentini, R.; Harder, N. d.; Fantz, U.: Overview of measures to reduce co-extracted electrons during long pulses in NBI sources for ITER. 33rd Symposium on Fusion Technology (SOFT 2024), Dublin (submitted)

Harder, N. d.; Barnes, M.; Döring, A.; Heinemann, B.; Mario, I.; Pimazzoni, A.; Poggi, C.; La Rosa, A.; Sartori, E.; Segalini, B. et al.; Serianni, G.; Shepherd, A.; Wimmer, C.; Wünderlich, D.; Fantz, U.: Measuring the beamlet divergence in NBI systems for fusion: a diagnostic comparison. 33rd Symposium on Fusion Technology (SOFT 2024), Dublin (submitted)

Heiler, A.; Wimmer, C.; Klose, N.; Fantz, U.: Monitoring the converter surface dynamics in negative hydrogen ion sources for ITER NBI. 33rd Symposium on Fusion Technology (SOFT 2024), Dublin (submitted)

Hörsch, J.; Wimmer, C.; Fantz, U.: Improving the signal to noise ratio of a TALIF diagnostic applied to a hydrogen plasma for enhanced hydrogen EDF determination. DPG-Frühjahrstagung der Sektion Materie und Kosmos (SMuK), Göttingen (submitted)

Mussini, D.; Heiler, A.; Wimmer, C.; Wünderlich, D.; Fantz, U.: Modeling of the spatial and temporal dynamics of Cs in large negative hydrogen ion sources using the CsFlow3D code. DPG-Frühjahrstagung der Sektion Materie und Kosmos (SMuK), Göttingen (submitted)

Wimmer, C.; Döring, A.; Fröschle, M.; Heiler, A.; Mussini, D.; Fantz, U.: Stabilizing long pulse D- extraction for NBI using a Cs shower. 33rd Symposium on Fusion Technology (SOFT 2024), Dublin (submitted)

Yordanov, D.; Wünderlich, D.; Friedl, R.; Wimmer, C.; Heiler, A.; Fantz, U.: Plasma property investigations during negative ion beam extraction in a half-sized ITER NBI ion source at ELISE test facility. 33rd Symposium on Fusion Technology (SOFT 2024), Dublin (submitted)

Barnes, M.; Harder, N. d.; Navarro, A.; Wimmer, C.; Wünderlich, D.; Fantz, U.: Direct Comparison of H^- and D^- Single Beamlet Divergence in View of ITER’s NBI System. 49th EPS Conference on Plasma Physics, Bordeaux (submitted)

Harder, N. d.; Barnes, M.; Heinemann, B.; Lindqvist, M.; Nocentini, R.; Orozco, G.; Veltri, P.; Wimmer, C.; Wünderlich, D.; Fantz, U.: Beam Optics of RF Ion Sources in View of ITER's NBI Systems. 29th IAEA Fusion Energy Conference (FEC 2023), London (submitted)

Hörsch, J.; Wimmer, C.; Fantz, U.: Atomic hydrogen density measurements with TALIF above a sample surface. DPG-Frühjahrstagung 2024, Greifswald (submitted)

Navarro, A.; Barnes, M.; Harder, N. d.; Wünderlich, D.; Wimmer, C.; Nocentini, R.; Orozco, G.; Heinemann, B.; Fantz, U.: Particle Tracking and Beam Line Diagnostic Reconstruction for Applications in Large Negative NBI sources. 49th EPS Conference on Plasma Physics, Bordeaux (submitted)

Orozco, G.; Barnes, M.; Fantz, U.; Harder, N. d.; Heinemann, B.; Navarro, A.; Nocentini, R.; Wimmer, C.: A calorimetric evaluation method for beam targets with IR imaging: implementation for the negative ion source BATMAN Upgrade. 15th International Symposium on Fusion Nuclear Technology (ISFNT-15), Las Palmas de Gran Canaria (submitted)

Rubin, J.; Harder, N. d.; Wünderlich, D.; Wimmer, C.; Fantz, U.: Research plan for investigating differences and similarities between hydrogen and deuterium operation in negative ions sources for fusion applications. DPG-Frühjahrstagung 2024, Greifswald (submitted)

Berner, J. M.; Wimmer, C.; Fantz, U.: Work Function Measurements in BATMAN Upgrade using LEDs Revealing Remarkably Low Values. 8th International Symposium on Negative Ions, Beams and Sources (NIBS 2022), Padova, Virtual (submitted)