Final answer:
An array processor is not found in the gantry of a modern CT system; it is part of the computer system that processes imaging data.
Step-by-step explanation:
The component that is NOT normally located in the gantry of a modern CT system is an array processor. In a computed tomography (CT) scanner, components such as the x-ray tube, pre-patient collimators, and solid-state detectors are found within the gantry. The x-ray tube emits x-rays that pass through a patient, the collimators shape the x-ray beam before it reaches the patient, and the detectors capture the x-rays after they pass through the patient. The array processor, however, is a component of the computer system that processes the data received from the detectors to create detailed images. It is not located within the gantry, but instead is part of the external computer systems that interpret the complex data gathered during the CT scanning process.