A high-energy muon collider scenario requires a final cooling system that reduces transverse emittance to ~25 microns (normalized) while allowing longitudinal emittance increase. Ionization cooling using high-field solenoids (or Li Lens) can reduce transverse emittances to ~100 microns in readily achievable configurations, confirmed by simulation. Passing these muon beams at ~100 MeV/c through cm-sized diamond wedges can reduce transverse emittances to ~25 microns, while increasing longitudinal emittances by a factor of ~25. Implementation will require optical matching of the exiting beam into downstream acceleration systems.
@article{arxiv.1704.07889,
title = {Wedge Absorbers In Final Cooling For A High-Energy High Luminosity Lepton Collider},
author = {David Neuffer and D. Summers and P. Snopok and T. Mohayai},
journal= {arXiv preprint arXiv:1704.07889},
year = {2017}
}
Comments
3 pp. arXiv admin note: text overlap with arXiv:1612.08960