Radiophotoluminescent Dosimeter (ca. 1960s)

I have no information about where this dosimeter was used or how it was used. It is obvious that it was designed to hold a single rod of radiophotoluminescent (RPL) glass of the sort commercially available from Bausch & Lomb. The outside of the holder is made of aluminum. Inside, next to the aluminum, is a layer of what appears to be a lead-copper alloy. The innermost layer, with which the glass dosimeter would be in direct contact, is made of plastic. The lead was used to help flatten the over-response of the RPL glass to low energy photons. My best guess is that it was used as an area monitor for accident dosimetry - the sensitivity (ca. 10 rads and up) was not good enough for routine environmental or personnel dosimetry.

Size: 3/8" diameter and 3/8" high

Donated by Ron Kathren


Ron Kathren, personal communication

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Last updated: 07/25/07
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