ID: 
2205
Maker's Name: 
Victoreen Instrumentation Company, Cleveland, Ohio
Where made: 
USA
Dimensions: 
17.6 × 6.2 × 0.4 cm

A cheaply made printed slide rule suitable for use by someone concerned with the health effects of ionising radiation, including the effects of shielding.

Scales for Dose Constant, Activity, Half Lives, Dose Rate, Flux/cm2 Min.

Number of Half Value Layers, Shield Thickness, Time, Dose, % Activity Remaining, Number of Half-Lives.