Question

A technique chart should be prepared for each AEC X-ray unit and should contain which of the following information for each type of examination ?

1. Photocells used
2. Optimum kilovoltage
3. Backup time

Answer 1

The technique chart for an AEC X-ray unit should include photocells used, optimum kilovoltage, and backup time, which are important for quality diagnostic images and minimizing radiation exposure.

Step-by-step explanation:

The technique chart for an Automatic Exposure Control (AEC) X-ray unit should contain several critical pieces of information to ensure proper imaging and to minimize patient exposure to radiation. These details include:

• Photocells used - Sensors that measure the amount of radiation passing through the patient and determine when the X-ray exposure should be terminated.
• Optimum kilovoltage - The potential difference across the X-ray tube that affects the penetration and contrast of the X-ray image.
• Backup time - The maximum time the X-ray exposure will continue in case of automatic exposure system failure, to prevent overexposure.

This information is vital to ensure that the X-rays provide enough detail for diagnostic purposes while keeping the radiation dose as low as reasonably achievable (ALARA principle).