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A Synchronization Pulse for the Princeton-Pennsylvania Accelerator

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3 Author(s)
Awschalom, M. ; Princeton-Pennsylvania Accelerator Princeton, New Jersey ; Isaila, M.V. ; Shoemaker, F.C.

The basic synchronizing pulse in the P.P.A., tying the injection pulse and the R. F. to the magnetic field, is derived from the total current flowing through one of the Accelerator magnets. This pulse is generated in a biased toroidal coil wound on a supermalloy core, by the magnetic field H(t) created by the magnet current in a coaxial conductor. This method has provided us with a synchronization signal pulse with excellent long term stability and very little time-jitter. Part of the time-jitter may be attributed to the variations of dH/dt at the time of the reversal of the magnetization of the core due to variations of Imin in the magnets. A method has been developed to effectively cancel out the dH/dt effect in the supermalloy core.

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Nuclear Science, IEEE Transactions on  (Volume:12 ,  Issue: 3 )