DATA COLLECTION In this paper we describe the latest version of a program we have used for several years to acquire and analyze turn-byturn data from pick-up electrodes in the AGS Booster during injection. The program determines several parameters of the injected beam including the tunes and the position and angle of the incoming beam. Examples are given for both proton and gold injection. Before digitization, the signals from the plates of a given PUE assembly are combined to produce a SUM

more »

... al proportional to the total charge inside the PUE and a DIF-Ference signal proportional to the horizontal or vertical displacement of the beam in the PUE. The SUM and DIFF signals are piped from the Booster ring to the MCR (Main Control Room) where they are connected to a multichannel digital oscilliscope. We are currently using LeCroy 9304A (Quad 200 MHz) or 9414 (Quad 1.50 MHz) oscilliscopes for this purpose. The digitized data are transfered from the oscilliscopes to Sun work stations in the MCR via a National Instruments GPIB-ENET IEEE 488 controller. A LabView program collects the data. Figures 1 and 2 show typical digitized SUM and DIFF signals generated by a half-turn of protons injected into the Booster and observed for some 40 turns. (The revolution period here is 1.2 /Js.)