Shielding - doe-hdbk-1106-97

DOE-HDBK-1106-97

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Shielding

1. Placement

Placement of shielding materials is critical to both your safety and that of your

colleagues. Work stations that require the use of shielding should be located

where there would be no worker on the opposite side of the workbench, such as

in corners and against walls.

2. Penetration through walls

Be certain to consider what (or who) is on the other side of the wall. However, if

this can not be accommodated, shielding should be considered for the work

station on the opposite side of the workbench or wall where your colleague may

be working.

3. Beta and Gamma Emitters

When shielding for both beta and gamma emitters, the shielding for the beta

emitters should be first. The beta shield (plastic, wood, foil) should be closer to

the radiation source to minimize the production of X-rays from the beta emitter

interacting with the lead (gamma) shield.

4. Considerations

Some considerations for use of shielding were addressed above. Because issues

involving shielding can be complex, always consult the Radiological Control

Organization before using shielding.