Beta Particle Standard – Type MF2 “Scatterless”

This is a “scatterless” configuration in which the activity is applied as a 3 mm spot centered between two laminated 0.9 mg/cm² aluminized Mylar foils. The source is supplied in a removable aluminum holder. In the holder the source has an overall diameter of 25.4 mm) and a thickness of 3.18 mm. Out of the holder the source is 23.8 mm in diameter with a thickness of approximately 0.76 mm.

This configuration is most useful for the precise determination of G.M. and proportional counter efficiencies, and as an educational tool for the verification of the inverse square law, as well as demonstrating back-scatter phenomena.

Activities up to 37 kBq