Precision fiducialization of transport components

The Final Focus Test Beam (FFTB) is a transport line designed to test both concept and advanced technology for application to future linear colliders. It is currently under construction at SLAC in the central beam line. A constructed apparatus was that simultaneously locates, to micron tolerances, the effective magnetic center of focussing lenses, as well as the electrical center of beam position monitors (BPM). Once located, it is suitable for transferring these coordinates to specially mounted tooling frames that support the external retroreflectors used in a laser tracker based alignment of the beam line. Details of construction as well as experimental results from the method are presented. (author) 12 refs.; 5 figs