Final answer:
The term for coordinating x-ray production with cine camera shutter operation to avoid exposure during shutter closure is synchronization, and it is vital for capturing clear images in medical imaging.
Step-by-step explanation:
The term used to describe the process of coordinating x-ray production and cine camera shutter operation so that no exposure is made during the time the camera shutters are closed is synchronization. This is crucial in medical imaging, especially in fluoroscopy, where live motion images are captured using x-rays. To freeze the action and capture clear images without motion blur, a fast shutter speed is necessary, typically 1/250th of a second or faster, depending on the speed of the subject being imaged.