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Cyclotron trap

by D. Gotta and L.M. Simons

This Submission thread is now published as

Submission summary

Authors (as registered SciPost users): Detlev Gotta
Submission information
Preprint Link: scipost_202102_00017v2  (pdf)
Date accepted: 2021-04-28
Date submitted: 2021-03-23 18:19
Submitted by: Gotta, Detlev
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
  • Nuclear Physics - Experiment
Approach: Experimental


The cyclotron trap was developed at SIN/PSI to increase the stopping density of nega- tively charged particle beams for the formation of exotic atoms in low pressure gases. A weak focusing magnetic field, produced by superconducting solenoids, is used. Particles are injected radially through the fringe field to a moderator, which decelerates them into orbits bound by the field. Further deceleration by moderators and/or low-pressure gases leads the particles to the center of the device, where they can be stopped or eventually extracted. Experiments became feasible with this technique, such as those dealing with pionic hydrogen/deuteriumat SIN/PSI.Muonic hydrogen laser experiments also became possible with the extraction of muons from the cyclotron trap. The formation of antipro- tonic hydrogen in low pressure targets led to successful experiments at LEAR/CERN.

Author comments upon resubmission

Updated version according to referee comments.

Published as SciPost Phys. Proc. 5, 013 (2021)

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