RF Separators and Separated Beams at SLAC
It has been shown that with momenta above -5 GeV/c, the only effective means of separation by particle mass in secondary beams is using RF deflectors. 192 Particle separation at proton synchrotrons requires the use of two RF deflectors. The beam structure at SLAC permits the use of a single deflector. second RFS to intercept the unwanted particles. For wanted particles the phase at the second RFS relative to that at the first is A& given in (4). The net deflection can range from Introduction
DEFLECTING STRUCTURES WITHMINIMIZED LEVEL OF ABERRATIONS
Deflecting structures are now widely used for bunch phase space manipulations either in special bunch diagnostic or in emittance exchange experiments. As a tool for manipulation, the structure itself should provide the minimal phase space perturbations due to non linear additives in the field distribution. Criterion of the field quality estimation is developed and deflecting structures are considered for minimization of non linear additives.
Achromatic Beam Translation Systems for Use with the Linear Accelerator
The beam of a linear accelerator has desirable properties regarding its geometry but frequently contains secondaries produced in the machine and has an unsuitable energy spectrum.Two systems have been designed which translate the accelerator beam without energy dispersion. In the one system, now in operation, the emergent beam has an ``energy focus,'' i.e., a point at which the initial beam geometry is reproduced independent of energy. The second system is designed to produce a beam translated but otherwise unmodified in geometry, independent of beam energy to the first order.Both systems permit easy control of energy width and produce a beam free from secondaries.