A system, method, and apparatus includes a computed tomography system having a rotatable gantry, an x-ray source, a generator, a detector having pixels and positioned to receive x-rays, and a computer. The U-shaped lace buckle comprises a shallow trench located at a central region. The the telematics center uses the data that has been provided to produce the authorization automatically. The assembly includes a ferromagnetic flux plate completely contained within the magnetic focusing circuit of the device.