Radiological Controls - DOE-HDBK-1109-97

DOE-HDBK-1109-97

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

Instructor's Guide

Lesson Plan

Instructor's Notes

RADIOLOGICAL CONTROLS

Objective 6

To control exposure to radiation, as well as maintain

10 CFR 835.501-502

exposure ALARA, access to radiological areas is

10 CFR 835.601-603

restricted by a combination of administrative and

10 CFR 835.1001-1003

engineering controls.

Examples of administrative controls include:

Warning signals and labels.

Work control documents such as SOPs and RWPs.

Examples of engineered controls include:

Interlocks.

Shielding.

For high-radiation areas where radiation levels exist

10 CFR 835.502

such that an individual could exceed a deep dose

equivalent of 1 rem in any 1 hour at 30 cm from the

source or surface that the radiation penetrates, one or

more of the following features shall be used to control

exposure:

A control device that prevents entry.

A device that prevents use of the radiation source

while personnel are present.

A device that energizes a visible and audible alarm.

Locked entry ways.