Other radiation-generating devices - DOE-HDBK-1141-2001

Radiological Assessor Training

DOE-HDBK-1141-2001

Instructor's Guide

VII. Other radiation-generating devices

Other radiation-generating devices (RGDs) that may

be encountered are small particle accelerators (<10

MeV) used for radiography, ion implantation, or the

production of incidental photons or particles

Some RGDs produce radiation incidental to their

primary purpose. Examples of devices that produce

radiation incidentally are electron beam welders,

electron microscopes, and pulse generators.

VIII. Categorizing RGD installations

Show OT 12.11.

The ANSI standards referenced earlier categorize

RGD installations into the following categories for

Each category is discussed briefly.

The ANSI standards and other

radiation safety purposes.

referenced documents should be

consulted for complete information

A. Exempt shielded installations

and requirements for each category.

The RGD and all objects exposed to the source

of radiation shall be within a permanent

enclosure that, under all circumstances of use,

possesses sufficient inherent shielding and

prevents inadvertent entry to any part of the

body. The exposure at any accessible region 5

cm from the outside surface of the enclosure

shall not exceed 0.5 mrem in any one hour.

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