Canadian Military

Self Indicating Dosimeter


0 - 10 Roentgens Full Scale

These self indicating dosimeters measure and indicate the accumulated dose of
X-Rays or Gamma radiation in the energy range of 0.08 to 2.0 Mev.
Accuracy:  ± 10 per cent on cobalt 60. Charging voltage: Approximately 175 Volts DC.

Dimensions: 4 3/8 inches long by 9/16 inch diameter.
These radiacmeters require a charger such as the PP5120/PD shown above, or any standard
Military / Civil Defence / Commercial dosimeter charger.

NSN 6665-21-104-4836
Manufactured in 1962 by:
Computing Devices Of Canada, Limited
Post Office Box 508
Ottawa, Ontario, Canada

Above: Boxes showing military numbers and production dates. These are dated 1962.
I have 5 of these, one from March, two from June and two from October.
Right photograph shows the screen view inside, it is reading 7¼ Roentgens.

Click here for a PDF file of the enclosed data sheet.

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