A Beam Position Monitor Data AC Fermilab 400 Id uisition System for the New eV Line

A VME based data acquisition systetn has been designed and installed for use in the new 400 Mev line connecting the Linac and Booster at Fermilab. Position information is digitized at rates up to 5 MHz during the entire beam pulse. Triggering can be accomplished by any of several mechanisms, including beam synchronized clock events, Tevatron clock events or an external trigger based on the chopper power supply trigger. Scaling and averaging are done locally. The results are returned to the ACNET control systetn via the Token Ring network.