Available in durable plastic or pressed paper, exposure calculators are designed to provide rapid and precise exposure times for gamma radiography of ferrous materials for cobalt 60, radium and iridium 192. Tabular data accompanying radiographic film, in the density range from 1.0 to 4.0, are available with instructions.
Durable plastic calculators come with a leather carrying case. Light weight plastic ultrasonic calculators are also available. Also available in pressed paper, radiography areas radiation dose/ distance calculators are used to calculate restricted areas, radiation areas and high radiation areas.
