Abstract
The RF systems installed in the synchrotrons can be used not only for beam acceleration but also to change the longitudinal beam characteristics. Below we present two nontrivial methods of “RF gymnastics” championed at the Fermilab accelerators to satisfy the needs of the Collider Run II—the so-called slip stacking and RF barrier buckets techniques.
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Notes
- 1.
This is a quasi-adiabatic process that involves azimuthal displacement of a bunch in a synchrotron. Cogging is carried out by a continuous change in phase and/or frequency of an RF wave relative to a reference marker.
- 2.
An optimum RR stack size is determined by several factors like the Tevatron luminosity life time, integrated luminosity delivered to collider detectors over a period of a week and also the rate at which the antiprotons are accumulated in the Accumulator Ring (see also discussion in Chap. 1).
- 3.
In the absence of the electron cooling this is not true (A. Burov, private communications). In any case, the LMM guarantees mining of the particles with low longitudinal momenta.
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Bhat, C., Seiya, K., Shiltsev, V. (2014). Longitudinal Beam Manipulations. In: Lebedev, V., Shiltsev, V. (eds) Accelerator Physics at the Tevatron Collider. Particle Acceleration and Detection. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-0885-1_4
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