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Bendix Prototype Ratemeter (ca. 1960) |
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While this amazing device looks like a standard pocket dosimeter, it is actually a ratemeter. The non-linear scale, viewed through the eyepiece in the normal fashion, reads out in R/hr. To be more specific, it measures exposure rates from 0 to 100 R/hr. |
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| The information I have
is that it dates from 1960 and that the fiber element is a 1013
ohm resistor. Since it came from FEMA, it is likely that it might
have been a civil defense prototype. In the early 60s, Bendix produced at
least a couple of similar devices for civil defense purposes. One, the CD
V-736, was included in their Family
Radiation Measurement Kit. The 736 however, was not a true
ratemeter - it had to be left in the radiation field for a specific length
of time before the exposure rate could be determined. The other was the CD
V-726 BX, an experimental prototype that never went into
production.
Size: 4 3/8” long and 0.5” in diameter Donated by FEMA courtesy of Carl Siebentritt |
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