Publications of N. den Harder

Journal Article (44)

1.
Journal Article
Navarro, A.; Barnes, M.; Harder, N. d.; Wünderlich, D.; Fantz, U.: Insights into stripping losses of negative ions in an ITER-like pre-acceleration system. Plasma Physics and Controlled Fusion 67, 015011 (2025)
2.
Journal Article
Fantz, U.; Wünderlich, D.; Wimmer, C.; Barnes, M.; Harder, N. d.; Heinemann, B.; Heiler, A.; Lindqvist, M.; Merk, F.; Navarro, A. et al.: Contributions of the extended ELISE and BATMAN Upgrade test facilities to the roadmap towards ITER NBI. Nuclear Fusion 64, 086063 (2024)
3.
Journal Article
Harder, N. d.; Barnes, M.; Heinemann, B.; Lindqvist, M.; Nocentini, R.; Orozco, G.; Wimmer, C.; Wünderlich, D.; Fantz, U.; Veltri, P.: Beam optics of RF ion sources in view of ITER's NBI systems. Nuclear Fusion 64, 076046 (2024)
4.
Journal Article
Hopf, C.; Harder, N. d.; Heinemann, B.; Angioni, C.; Plank, U.; Weiland, M.; ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society: Decoupling beam power and beam energy on ASDEX Upgrade NBI with an in-situ variable extraction gap system. Nuclear Fusion 64, 096017 (2024)
5.
Journal Article
Lindqvist, M.; Wünderlich, D.; Mochalskyy, S.; Harder, N. d.; Revel, A.; Minea, T.; Fantz, U.: Particle injection methods in 3D-PIC MCC simulations applied to plasma grid biasing. Physics of Plasmas 31, 033903 (2024)
6.
Journal Article
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. Fusion Engineering and Design 205, 114531 (2024)
7.
Journal Article
Wimmer, C.; Barnes, M.; Harder, N. d.; Navarro, A.; Nocentini, R.; Orozco, G.; Wünderlich, D.; Heinemann, B.; Fantz, U.; Serianni, G. et al.: Beam divergence of RF negative hydrogen ion sources for fusion. Journal of Physics: Conference Series 2743, 012033 (2024)
8.
Journal Article
Wünderlich, D.; Wimmer, C.; Harder, N. d.; Barnes, M.; Fröschle, M.; Heiler, A.; Navarro, A.; Riedl, R.; Yordanov, D.; Fantz, U. et al.: Towards ITER-Relevant CW Extraction at Negative Ion Sources for Fusion. Journal of Physics: Conference Series 2743, 012026 (2024)
9.
Journal Article
Zohm, H.; Alessi, E.; Angioni, C.; Arden, N.; Artigues, V.; Astrain, M.; Asunta, O.; Balden, M.; Bandaru, V.; Banon Navarro, A. et al.: Overview of ASDEX upgrade results in view of ITER and DEMO. Nuclear Fusion 64, 112001 (2024)
10.
Journal Article
Harder, N. d.; Fantz, U.: Beamlet formation in negative ion sources for fusion applications: A computational grid system comparison. Physics of Plasmas 30, 042516 (2023)
11.
Journal Article
Harder, N. d.; Lindqvist, M.; Mimo, A.; Minea, T.; Mochalskyy, S.; Nocentini, R.; Revel, A.; Wünderlich, D.; Fantz, U.: Computationally studying H- extraction and beamlet formation: the impact of the plasma model. Journal of Instrumentation 18, C08005 (2023)
12.
Journal Article
Heinemann, B.; Harder, N. d.; Hopf, C.; Eckerskorn, M.; Fröschle, M.: Variable grid gap for a wider operational space of NBI-heating at ASDEX upgrade. Fusion Engineering and Design 188, 113404 (2023)
13.
Journal Article
Lettry, J.; Vnuchenko, A.; Bertolo, S.; Mastrostefano, C.; O'Neil, M.; Lorenzo, F. d.; Coutron, Y.; Steyeart, D.; Riffaud, B.; Thiboud, J. et al.: Correlation of H- beam properties to Cs-coverage. Journal of Instrumentation 18, C06023 (2023)
14.
Journal Article
Orozco, G.; Barnes, M.; Froeschle, M.; Harder, N. d.; Heinemann, B.; Kolbinger, J.; Oberpriller, A.; Nocentini, R.; Wimmer, C.; Fantz, U.: 3D magnetic field measurements and improvements at the negative ion source BATMAN Upgrade. Fusion Engineering and Design 189, 113471 (2023)
15.
Journal Article
Redl, A.; Hohmann, T.; Eich, T.; Vianello, N.; Bernert, M.; David, P.; Harder, N. d.; Herrmann, A.; Rohde, V.; Weiland, M. et al.: The global energy balance of the ASDEX Upgrade tokamak determined with the revised cooling water calorimetry. Plasma Physics and Controlled Fusion 65, 115003 (2023)
16.
Journal Article
Fantz, U.; Briefi, S.; Fröschle, M.; Harder, N. d.; Heiler, A.; Heinemann, B.; Hurlbatt, A.; Hopf, C.; Lindqvist, M.; Merk, F. et al.: Ion source developments at IPP: On the road towards achieving the ITER-NBI targets and preparing concepts for DEMO. Journal of Physics: Conference Series 2244, 012049 (2022)
17.
Journal Article
Harder, N. d.; Hurlbatt, A.; Wimmer, C.; Orozco, G.; Nocentini, R.; Fröschle, M.; Heinemann, B.; Fantz, U.: ITER-HNB plasma and extraction grids in BUG: Characterization of magnetic deflection correction. Journal of Physics: Conference Series 2244, 012053 (2022)
18.
Journal Article
Lettry, J.; Vnuchenko, A.; Bertolo, S.; Mastrostefano, C.; O'Neil, M.; Lorenzo, F. d.; Coutron, Y.; Steyeart, D.; Riffaud, B.; Thiboud, J. et al.: Beam Formation Studies on the CERN IS03b H Source. Journal of Physics: Conference Series 2244, 012036 (2022)
19.
Journal Article
Lindqvist, M.; Harder, N. d.; Revel, A.; Mochalskyy, S.; Mimo, A.; Nocentini, R.; Minea, T.; Fantz, U.: From meniscus formation to accelerated H beam: coupling of 3D-PIC and ion-optics simulations. Nuclear Fusion 62, 126068 (2022)
20.
Journal Article
Stroth, U.; Aguiam, D.; Alessi, E.; Angioni, C.; Arden, N.; Arredondo Parra, R.; Artigues, V.; Asunta, O.; Balden, M.; Bandaru, V. et al.: Progress from ASDEX Upgrade experiments in preparing the physics basis of ITER operation and DEMO scenario development. Nuclear Fusion 62, 042006 (2022)