Planchets (Simulated Evaporated Liquid)
Planchet standards simulating an evaporated liquid are prepared for use in gross alpha and gross beta determinations. As with the filter standards, the standard is prepared gravimetrically on Mylar™ using the computer controlled applicator. The Mylar™ is mounted directly in the customer's planchet without a filter or backing. The backscatter and attenuation characteristics simulate an evaporated liquid in a planchet with a solid residue of approximately 0.5 or 0.85 mg/cm2.
