Radiation Protection in Computed Tomography.

Radiation exposure from computed tomography (CT) examinations has long been a concern. As part of their education, CT technologists learn the fundamentals of radiation interactions, dose, risk, and protection. Modern CT systems have evolved to include dose optimization features.

Ultraviolet protectants: causative agents for screen and image artifacts in radiography.

Purpose: To determine the specific causative agent(s) and mechanism of formation of opacity artifacts seen on some radiographs acquired at the authors' facility.

Materials And Methods: Various substances likely to come into contact with technologists' hands were tested. Initial test results showed that a hand lotion with sun protection produced artifacts similar to the ones seen clinically and left no visible evidence on the screen after cleaning.