Question

The AEC will provide an exposure that produces a diagnostic image when the tissue of interest _________.

A) is placed directly over the photocell.

B) is placed directly under the photocell.

C) is partially over the photocell.

D) is partially under the photocell.

Answer 1

The AEC provides a proper exposure for a diagnostic image when the tissue of interest is directly over the photocell, ensuring accurate measurement of radiation for image formation while reducing overexposure risks.

Step-by-step explanation:

The Automatic Exposure Control (AEC) will provide an exposure that produces a diagnostic image when the tissue of interest is placed directly over the photocell. This is because the AEC is designed to measure the amount of radiation that has passed through the patient's body and reached the detector (photocell), adjusting the exposure time accordingly to produce a clear image without overexposing the patient.

Photographic films, fast films, and imaging techniques use quantum interactions to create visible changes in the film emulsion or provide data for digital images, such as in X-ray, Computed Tomography (CT) scans, and Single-Photon-Emission Computed Tomography (SPECT).

It is essential to properly position the tissue over the photocell to ensure accurate exposure and a diagnostic-quality image while minimizing the risk of radiation, as overexposure to X-rays can cause cancer.