Focusing of submicron beams for TeV-scale e+e- linear colliders.

the detectors byproper steering and collimation, set voltages and tim-ing, and debug data acquisition software. These monitorswere used to tune the final spot. Time-of-Aight signalsand azimuthal distributions from the gas-ionization moni-tor agreed well with theoretical expectations. These wereused to reduce beam tails