Koeth Collection – Radiation Detection Instruments

Koeth Collection – Radiation Detection Instruments

Author: Tim

Tim’s “Koeth Collection” began at age 10 with his first CDV-715 Civil Defense ion chamber. The collection has over 100 “antique” radiation detection instruments which are all on display at the University of Maryland.

Cabinets #1 & #2
Cabinets #3, #4, & #5.
Cabinet #3
Cabinets #4 & #5
Cabinet #5
The Precision Instrument Company’s line of prospecting instruments.
The bottom shelf are where all the cutie-pie’s hang out.
The Classmaster.
A dekatron tube based scalar ratemeter, and lead shield for GM tube.
Cabinet #3 open, US and German military instruments.
Oremaster and Radiac units.
Pocket dosimeters, R-Chambers, assorted GM tubes and scintillation crystals
More dosimeters.
A chemical dosimeter – 450 Roentgens (yikes!)
All variations on the CDV-700 theme.
The Nucleus scalar and GM tubes.
CDV-700 & CDV-705 speaker
These are special to Tim, see next pic for explanation.
Click on the image to learn about the “Piscataway Radium Incident.”
Civil Defense Instruments
Civil Defense Instruments
Civil Defense Instruments: CDV-138 pocket dosimeters
Civil Defense Instrument: CDV-700 & 705
Civil Defense Instrument: CDV-700
Civil Defense Instrument: CDV-717
Civil Defense Instrument: CDV-717
Civil Defense Instrument: CDV-720
Civil Defense Instrument: CDV-720
Civil Defense Instrument: CDV-746 home dosimeter and ratemeter
Civil Defense Instrument: CDV-755
Civil Defense Instruments
Civil Defense Instrument
Civil Defense Instrument: CDV-787, a can of Uranium epoxied to create a standard which to compare you contaminated drinking water with.
Victoreen Cutie Pie
CDV-700 knock off. Model 3007
Civil Defense pocket dosimeters and chargers.
Civil Defense Instrument: FCDA CDV-700
Civil Defense Instrument: FCDA CDV-720
CDV-700 knock off
G E Smith & Associates Model GS-500A
Ludlum model 3 with 44-7 end window GM.
Ludlum model 5 Geiger Counter
Ludlum model 9 ion chamber
Ludlum Model 2220 with 44-3 NaI probe.
A real antique, Beckman MX-2, circa 1948
Beckman MX-5 of the 1950’s
Beckman MX-5 of the 1950’s
El-Tronics’ pocket Sized Geiger Counter
El-Tronics SM-3 Beta Gamma Survey meter.
El-Tronics SM-3 Beta Gamma Survey meter.
Tracerlab’s Model 5UIH Cutie Pie style ion chamber
Variation’s on a theme: CDV-700
Variation’s on a theme: CDV-700
Victoreen 480 Ion Chamber
Victoreen Panoramic (Cutie Pie) ion chamber.