27f58cad___Academy_of_Aerospace_Quality__Section
[Term] Shielding [Definition] A third important way to reduce exposure is to place a shield between the operator and the source of radiation. The denser the shielding materials the more effective it is in bringing down the levels of exposure to X-rays and gamma rays. The commonly used shielding materials in radiographic installations and equipment are steel, lead, concrete and depleted uranium. [Section] 
Non-Destructive Evaluation
Glossary | Academy of Aerospace Quality
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