Therapist took 2d/3d and applied shifts.Therapist centered couch for cbct (cone-beam computed tomography), took cbct, reviewed images with md, minimal shifts were recorded, and therapist rotated gantry to 0 then restored couch to iso.Couch lateral was supposed to land at 6.4, however, continued to 13.0 without being prompted by rtt (real time tomography).Therapist removed hand from motion enable once table was past 6, however, table was moving quickly.A cchu fault appeared but disappeared quickly prior to rtt being able to review it.Imaging panel was touching vac loc bag, but collision sensor did not go off.Patient was taken off table and engineering/physics was notified.Varian ticket was open.Engineering power cycled cchu board.
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