IM-181/PD Pocket Dosimeter (1960s, 1970s)

The IM-181/PD is a military direct reading pocket dosimeter that measures gamma ray and x-ray exposures in the 0 1 roentgen range. Unfortunately, these particular examples (IM-181 and IM-181A) carry no information about the manufacturer. The first reference I have for the IM-181 is the 1966 version of the List of Military and Civil Defense Radiac Devices  -   it does not refer to IM-181A. However, the 1975 List of Radiacs in the Navy Program states that both the IM-181 and 181A are standard instruments. The 1987 version of the List of Military and Civil Defense Radiac Devices states that the IM-181, 181A and 181B are all standard models.

 

 

Size: ca. 0.5 diameter and 4 long

Weight: ca. 1 oz.

Manufacturer: Landsverk  and Dosimeter Corp.

References

Defense Atomic Support Agency, List of Military and Civil Defense Radiac Devices. DASA 1243 revised, 1966.

Naval Electronic Systems Command List of Radiacs in the Navy Program P-9670-1, February 1975.

Defense Nuclear Agency List of Military and Civil Defense Radiac Devices HQDNA (AR) 3M Revised, August 1987.

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Last updated: 05/10/11
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