Production of Beams with High Line-Density by Azimuthal Combination of Bunches in a Synchrotron

Challenges and Plans for the Ion Injectors

“…Momentum slip-stacking [15] consists of capturing two trains of bunches with independent beam controls, and by detuning them in momentum, bringing them closer together. Those gymnastics, originally proposed to increase bunch densities [16], can be applied in our case to interleave the bunches, as sketched in Fig. 3:…”

Tevatron performance goals for the coming decade

“…One possibility that has been studied is a technique called "slip stacking" [5]. This technique, which was first demonstrated at CERN in the 1970s [6], involves stacking beams in longitudinal phase space. Two subsequent Booster batches are injected into the Main Injector and captured at different energies (different radial positions) by subsets of the rf cavities running one harmonic number above and below the nominal harmonic number of the accelerator (h=588).…”

Dynamical stability of slip-stacking particles

“…The slipping of bunched beams was first demonstrated at the CERN Super Proton Synchrotron (SPS) [6] but the emittance growth led to unacceptable particle losses. Fermilab has subsequently implemented slip stacking operationally since 2004 [4,7,8].…”