Abstract: A system and method for monitoring cyclotron operation includes a sensing and monitoring system having vacuum sensor for sensing whether an acceleration chamber associated with the cyclotron is evacuated, a target sensor for sensing various target conditions which would indicate a faulty target condition, and a synthesis sensor for sensing whether the synthesis of the positron-emitting radio chemical is proceeding as desired. The system and method also includes an alarm feature for alarming or otherwise notifying a radio chemist or technician that one or more of the aforementioned cyclotron failures has occurred before the failure damages equipment or otherwise causes a significant delay or cancellation in the production of the radio chemical which is subsequently injected into a patient during a positron-emitting tomography procedure. The system and method senses the various fault conditions and generating one or more user-friendly display and subsequent alarm in response thereto.

Abstract: Automatically operable automotive vehicle gate apparatus provided with self protection and automotive protection. The gate apparatus includes operational mechanism which moves a gate member within a gateway between a closed position and an open position. The gate apparatus also includes structure which permits the gate member to be moved to an open position when opening forces are applied thereto, without operation of the operational mechanism. Thus, the gate apparatus is protected against damage. The gate apparatus also includes mechanism which permits the gate operation mechanism to move from an open position to a closed position while the gate member remains in an open position. Thus, if an automotive vehicle should be within the gateway when closing action of the gate operation mechanism occurs, the automotive vehicle is protected against damage.