Glossary cont'd - DOE-HDBK-1109-97

DOE-HDBK-1109-97

Radiological Safety Training for Radiation-Producing (X-Ray) Devices

Student's Guide

GLOSSARY (continued)

X-ray device operator: An individual designated in writing by the X-ray-device custodian and qualified

by training and experience to operate a specific X-ray device.

X-ray diffraction: The scattering of X-rays by matter with accompanying variation in intensity in

different directions due to interference effects.

X-ray installation: One or more X-ray systems, the surrounding room or controlled area, and the

installation enclosure.

X-ray power supply: The portion of an X-ray device that generates the accelerating voltage and current

for the X-ray tube.

X-ray source housing: An enclosure directly surrounding an X-ray tube that provides attenuation of the

radiation emitted by the X-ray tube. The X-ray source housing typically has an aperture through which the

useful beam is transmitted.

X-ray system: An assemblage of components for the controlled generation of X-rays.

X-ray tube: An electron tube that is designed for the conversion of electrical energy to X-ray energy.

X-ray tube assembly: An array of components typically including the cathode, anode, X-ray target, and

electron-accelerating components within a vacuum.