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Description
This study presents the current advancement on our investigation of the Electron Cyclotron Resonance Ion Plasma Accelerator (ECRIPAC), revisiting and greatly expanding this original accelerator concept initially developed in the nineties*. ECRIPAC is an innovative compact plasma device able to generate energetic pulsed ion beams using robust and well mastered electron cyclotron resonance ion source technologies, without requirements for axial RF cavities or powerful laser beams. It relies on the gyromagnetic auto-resonance of plasma electrons in a time growing magnetic field**, followed by the axial acceleration of ions through the plasma space-charge field inside a magnetic field gradient, up to energies close to 100 MeV/A.
The theoretical behaviour of ECRIPAC is summarized. The results of a Monte-Carlo (MC) simulation code, reproducing the electron dynamics, are presented. These results are consistent with the theoretical treatment, which allowed validating a preliminary design of an ECRIPAC machine able to accelerate He2+ ions up to ~10 MeV/A. Finally, the current results of a dedicated plasma Particle-In-Cell simulation using the open-source code SMILEI*** are presented, providing interesting insights on the plasma behaviour inside the accelerator.
Footnotes
R. Geller et al., Proceedings of the 10th international workshop on ECR ion sources (Knoxville, USA, 1991) pp. 449–451.
K. S. Golovanivsky, IEEE Transactions on Plasma Science 11, 28 (1983).
**J. Derouillat et al., Comput. Phys. Commun. 222, 351-373 (2018).
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