United States Navy
Radiac Detectors

DT-60/PD Series

DT-60/PD Series Radiac Detectors
Measures 10 - 600  Roentgens

Top Left: DT-60/PD        Top Right: DT-60C/PD
Middle: DT-60A/PD

Bottom: DT-60/PD opened showing top & bottom covers and glass element in plastic holder.
Covers are lined with lead, with a small hole in the center for exposing the element.

A tool included with the CP-95A/PD is used to unscrew the covers to release the element,
which is placed in the reader. These were designed to be difficult to open without the special tool.
The element holder is serial numbered to match the outer case.

The DT-60/PD is a non-self-indicating personnel dosimeter which is worn about the neck like a pendant.
 The sensitive element is a radio-photoluminescent silver phosphate glass,
which emits luminescent light under near ultra-violet irradiation after exposure to X or gamma radiation.
Developed by J.H. Schulman of the U.S. Naval Research Laboratory in 1951.

The DT-60/PD dosimeters were made by:
Corning Glass Works, Corning, New York
Poloroid Corporation, Cambridge, Mass.
Bausch & Lomb Optical Co., Rochester, New York
Peneberthy Instrument Co., Seattle, Washington

The DT-60B/PD dosimeters were made by:
Speciality Electronics Corporation

The DT-60C/PD dosimeters were made by:
Industrial  Electronic Harware Corporation

The DT-60D/PD dosimeters were made by:
Electrospace Corporation

Government cost in 1969: $1.00 each

DT-60/PD Information Sheet

Click here for an Adobe® Acrobat PDF of this sheet.

Cross-sectional view of a DT-60/PD radio-photoluminescent dosimeter.

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