Insertion and Extraction of Internal Targetry at the Zero Gradient Synchrotron

A new targetry system within the Zero Gradient Synchrotron (ZGS) changes target manipulators with short interruptions of beam time, no loss of ring vacuum, and minimum exposure of personnel to radiation. The system consists of an insertion-extraction apparatus and two targeting manipulators which use miniature trolley rails. Having no external connecting drives or wires, the manipulators easily shuttle in and out of the ring vacuum chamber. Positions of the targets on each manipulator are remotely displayed in the ZGS control room in direct coordinate readout form.