Abstract
Abstract : The two aging CT systems in Building 71 at Wright-Patterson AFB were analyzed to determine the current state of computer and other hardware, and to define an upgrade plan to improve supportability and enhance system performance. The Tomoscope CT system became the focus of the project. The Tomoscope gantry control computer was a Compaq 386-processor-based PC, which included several one-of-a-kind processor boards. The gantry control interface module included aging wire-wrap boards. The gantry motors and stages were manufactured by a now defunct company, making repair and support difficult. The gantry control computer, gantry control software, gantry control module, gantry motors and gantry stages were all replaced. The new system utilizes a software motor control system linked to digital motor amplifiers through a FireWire connection. The control system is accessed through custom software that fully duplicates the functionality of the former gantry control software, including replicating the exact interface with the Tomoscope scan control system. The new hardware and software were installed and tested. System reliability and supportability has been significantly improved.
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