The Advanced Threat Identification X-ray (aTiX) machines from Smiths Detection of Pine Brook, New Jersey, provide carry-on baggage screening that detects more potential threats. Unlike earlier x-ray systems, aTiX captures multiple views of bags in a single sweep in the normal throughput time. It includes software algorithms that help the operator detect potentially harmful items, and the software can be easily upgraded as new threats emerge. It automatically detects explosives in real time, while allowing for maximum baggage throughput. The system was field tested by the Transportation Security Administration alongside competing systems, and was chosen for use in airports in Albuquerque, Denver, and other U.S. cities. It is also widely used in the United Kingdom.