Instruments Used for X-Ray Detection

DOE-HDBK-1109-97

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

Instructor=s Guide

Lesson Plan

Instructor=s Notes

portable radiation-monitoring instruments during a

radiation survey. An understanding of these

Note: Emphasize that

instruments is important to ensure that the data obtained

completion of this training will

not qualify individuals to use

are accurate and appropriate for the source of radiation.

these instruments, specific

instrument training is required.

Many factors can affect how well the survey

measurement reflects the actual conditions, including

Selection of the appropriate instrument based on

type and energy of radiation and on radiation

intensity.

Correct operation of the instrument based on the

instrument operating characteristics and limitations.

Calibration of the instrument to a known radiation

field similar in type, energy, and intensity to the

radiation field to be measured.

Instruments Used for X-Ray Detection

It is important to distinguish between detection and

measurement of X-rays. Equipment users often use

a detector to detect the presence of X-rays, for

example, to verify that the device is off before entry

into the area. The measurement of X-rays is

normally the job of a qualified Radiological Control

Technician.

Measurement of radiation dose rates and surveys of

record require an instrument that reads roentgen or