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Model No.
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Country
Construction
Material
Date
Scale Length
Area of Use
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Gamma Radiation Exposure Calculator (v2)
Perrygraf for JEM Manufacturing Copr
USA
Cardstock & Plastic
c. 2010
8 cm x 21.3 cm
Radiography
Notes:
Used to calculate film exposure time and distance for Iridium 192 or Cobalt 60 radiation sources
Image 1
Image 2
