Qinglong Cui, Jianglong Wei, Yahong Xie, Lizhen Liang, Yuanlai Xie, Chundong Hu. Beamlet optics analysis of 400 keV accelerator for CRAFT negative ion based neutral beam injection system[J]. High Power Laser and Particle Beams, 2023, 35(11): 114001
- High Power Laser and Particle Beams
- Vol. 35, Issue 11, 114001 (2023)
Fig. 1. Basic flow chart of the numerical simulation with IBSimu code
Fig. 2. Structure of negative ion source of CRAFT NNBI
Fig. 3. Aperture structure and voltage relation of the negative ion source for CRAFT NNBI
Fig. 4. Trajectories of negative ions (red line) and electrons (yellow line) during extraction and acceleration under different ion current densities
Fig. 5. Characteristics of the beamlet divergence at the GG aperture exit under different extracted current densities
Fig. 6. Characteristics of the beamlet divergence at the GG aperture exit under different simulation conditions
Fig. 7. Characteristics of the beamlet divergence at the GG aperture exit under different acceleration gaps
Fig. 8. Character of the beamlet divergence at the GG aperture exit under different extraction gaps
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