How does a direct exposure sensor obtain its images?

A direct exposure sensor obtains its images by exposing the intraoral sensor directly to x-rays. This type of sensor is designed to convert the radiation from the x-rays directly into an electronic signal that creates a digital image. The sensor consists of a semiconductor material that is sensitive to x-ray radiation. When x-ray photons strike the sensor, they generate an electrical charge and therefore an image can be quickly processed and displayed on a computer screen.

This method allows for immediate image acquisition and is quite effective, as it ensures that the images are captured with clarity and detail. In contrast, other methods such as using film require chemical processing, and some types of sensors rely on indirect methods involving other processes, which are not as immediate as direct exposure.