27f58cad___Academy_of_Aerospace_Quality__Section
[Term] Beam Attenuation [Definition] A decrease in light energy from a collimated beam that is passing through a water sample with a specific pathlength. It is an inherent optical property [Source] http://www.wetlabs.com/glossary.htm [Section] 
Non-Destructive Evaluation
Glossary | Academy of Aerospace Quality
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