Publications of C. Wimmer

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 n-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)

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)

Orozco, G.; Fröschle, M.; Harder, N. d.; Heinemann, B.; Hurlbatt, A.; Kolbinger, J.; Oberpriller, A.; Nocentini, R.; Wimmer, C.: 3D magnetic field measurements and improvements at the negative ion source BATMAN Upgrade. 32nd Symposium on Fusion Technology (SOFT 2022), Dubrovnik, Virtual (submitted)

Berner, J. M.; Wimmer, C.; Fantz, U.: Work Function Measurements of the Cesiated Surface in a Negative Hydrogen Ion Source Using LEDs. DPG-Frühjahrstagung der Fachverbände Physik der Hadronen und Kerne, Plasmaphysik und des Arbeitskreises Beschleunigerphysik , Mainz, Virtual (submitted)

Harder, N. d.; Hurlbatt, A.; Wimmer, C.; Orozco, G.; Nocentini, R.; Fröschle, M.; Heinemann, B.; Fantz, U.: The ITER-HNB Plasma Grid and Extraction Grid in BUG: Characterization of a Magnetic Deflection Correction System. 19th International Conference on Ion Sources (ICIS 2021), Virtual (submitted)

Merk, F.; Wimmer, C.; Briefi, S.; Fantz, U.: TALIF on H₂ Plasmas in Preparation of its Usage for Negative Ion Sources. DPG-Tagung der Sektion Materie und Kosmos (SMuK), Virtual (submitted)

Yordanov, D.; Wünderlich, D.; Wimmer, C.; Fantz, U.: On the Effect of Biased Surfaces in the Vicinity of the Extraction Area at the Large RF Driven Negative Ion Source at the ELISE Test Facility. 19th International Conference on Ion Sources (ICIS 2021), Virtual (submitted)