Numerical Optimization of 6D Cooling Solenoids for a Muon Collider
Aug, 20257 pages
Published in:
- IEEE Trans.Appl.Supercond. 35 (2025) 5, 1-7
- Published: Aug, 2025
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Abstract: (submitter)
In the current most evolved design concept of a machine for accelerating and colliding muons, there exists two long
(∼1 km) channels for cooling newly created muons and antimuons. Termed the ‘6D cooling channels’, the beam is cooled in
momentum and position space using a series of alternating polarity
solenoids which create an oscillating field in the beam direction,
absorbers and radio-frequency cavities. In total there are around
3000 solenoids per channel, contributing to a significant portion
of the cost and engineering demands of the entire machine. The
integration of the requirements of the field profile with feasible
solenoid configurations is a difficult and unique problem, without
analytic descriptions to readily relate these. We have addressed
this problem in two ways: in the first we constrain the optimization
studies of the optics by setting limits on solenoid parameters; in
the second we have developed a numerical optimization routine to
find the best configuration given a desired field profile, in terms
of cost and engineering complexity. The following paper reviews
semi-analytic descriptions of solenoids, select operating limits considering HTS, followed by the numerical optimization approach
and subsequent results. This procedure is applicable to any solenoid
or set of solenoids and can be an extremely useful optimization tool,
running much quicker than current commercial softwares.- Solenoids
- Cooling
- Magnetomechanical effects
- Mesons
- Superconducting magnets
- Particle beams
- Optimization
- Geometry
- Stress
- Muon colliders
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