External Dose Reduction and Control Techniques

DOE-HDBK-1113-98

Module 103 External Dose Control

Lesson Plan

Instructor's Notes

External Dose Control Program

The primary purpose of an external dose control

program is to control dose to the individual

radiation worker to below regulatory limits and

administrative levels and ensuring that dos es are As

Low As Reasonably Achievable (ALARA). In all

cases at DOE facilities, dose received by an

individual shall not exceed the limits specified in

Title 10 of the Code of Federal Regulations, Part

835 (10 CFR 835).

The elements of an external dose control program

include:

detecting and characterizing the beta, gamma, X-

ray, and neutron radiation fields;

measuring and/or quantifying these radiation

fields;

measuring personnel exposure; and

determining external exposure control practices.

General External Dose Control Practices

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These general principles should be applied to

control externa l dose fr om uraniu m:

minimizing time in the radiation field,