A multi-batch fast bunch integrator for the Fermilab Main Ring

Abstract
In order to support new multi-batch coalescing scenarios in the Fermilab Main Ring and Main Injector, a new fast bunch integrator system has been developed and installed. This VME-based system provides the capability to measure both the batch and central bunch intensities for up to 12 proton or 4 antiproton batches at a time in the accelerator. The system provides for variable batch lengths of up to 15 bunches and central bunch spacing down to 21 rf buckets (394 ns). A new dual-channel fast integrator circuit has been designed for the system which attains 50 dB of dynamic range with programmable integration windows to 18.8 ns in length with 2-ns rise/fall times.

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