Search

This report is written in response to questions from the field concerning the health problems related to video display terminals (VDT). A literature search was conducted of the most current information regarding ergonomics and radiation. This report presents information on the ergonomics of the VDT workplace, suggested exercises to relieve stress, and addresses the radiation aspects and recommendations for use of the VDTs. Keywords: Ergonomics, Radiation effects, Eye strain, Stress(Physiology).

At the request of 156th TAC Clinic Bioenvironmental Engineer, AFOEHL personnel surveyed radio frequency radiation (RFR) hazards from the AN/TPS-43E transportable radar at the 141st Tactical Control Squadron, Ramey PR. During the survey, final installation checks were being performed on a new AN/FPS-93 radar, so a RFR hazard survey was performed on that unit as well. Measurements showed no hazard from either radar while the antennas are rotating. The AN/TPS-43E is mechanically interlocked so it will not radiate while the antenna is stopped. Operating instructions should specify immediate deactivation of the radar transmitter in case of interlock failure. The AN/FPS-93 will produce a hazard if the transmitter is operated while the antenna is stopped. The hazardous area is along the beam axis and is only accessible by persons climbing on the interior or exterior of the radome, or on the antenna structure itself. The unit Radiation Safety Officer should be notified when individuals are working on or in the radome to assure that they are not exposed to the direct beam of the radar. In the future, an AN/FPS-6 radar will be installed at the site. A theoretical evaluation is included which should be verified by direct measurement when operational.

AFOEHL developed this report to assist the base level aeros pace medical team manage their radio frequency radiation protection program. This report supersedes USAFOEHL Report 80-42, 'A practical R-F Guide for BEES.