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
Microwave Separator for High Energy Particle Beams
This paper describes the design and construction of a microwave separator for high energy particle beams, following the original ideas of Panofsky and Wenzel. We used a TM012 rectangular cavity with a Q of 15 000 and a maximum power dissipation of 1.3 Mw (megawatts). With this we could deflect electrons of 150 Mev/c momentum through ¾ in. at the final focus of our analyzing magnet. The available aperture is so small that the technique is not immediately useful, but we anticipate that it may become so at higher energies, when other methods of beam separation become unfeasible.
Double Focusing Zero Dispersion Magnetic Spectrometer
A double focusing zero dispersion magnetic spectrometer has been constructed having the following properties: The spectrometer consists of two magnets, each n≅0.25, 110° deflection, 30-in. radius of curvature, bending the particles in the same sense. For the central momentum p0, the useful solid angle Ω0 is ∼0.0055 sr with a possibility of improvement to 0.01 sr. The momentum acceptance Δp is in excess of ±4% with a useful solid angle Ω of ∼0.0015 sr at the 4% points. For a point source and for the solid angles and momentum acceptances given, over 90% of the trajectories terminate within a circle of 2-in. diameter at the focal plane.