How many ct generations are there?

Answer 1

As of October 2023, there are generally considered to be five generations of computed tomography (CT) technology: first-generation, second-generation, third-generation, fourth-generation, and fifth-generation (also known as cone-beam CT). Each generation has introduced advancements in scanning speed, image quality, and radiation dose reduction. The most commonly used systems today are third and fourth generation, with fifth-generation systems primarily used in specific applications like dental imaging.