Notes
Slide Show
Outline
1
A Walk Through The History of Portable Radiation Detectors

1920 to 1960
2
Earliest Portable Radiation Detector – 1925
3
Early Portable Radiation Detectors - 1933
4
Dr. Robert Taft – Radium Hound – 1930’s
5
Dr. Taft Portable Radiation Detectors - 1938
6
Early Radium Search – late 1930’s
7
Dr. Taft – Radium Hound – 1930’s
8
Electrometers – late 1930’s
9
Victoreen – First Nuclear Company - 1931
10
Victoreen - Early Years
11
Instrument Development Laboratory - early 1940’s
12
Herbach and Rademan - early 1940’s
13
Manhattan Project – early 1940’s
First Atomic Pile December 2, 1942
14
Oak Ridge (Clinton Laboratories) Atomic Pile
November 2, 1943
15
Oak Ridge Atomic Pile
16
Contamination – A Major Issue
17
Laboratory Prototypes - late 1940’s
Establishing Specifications
18
World War II – June 1944
Operation Peppermint
19
 
20
Pacific Island Nuclear Tests
Operation Crossroads 1946-1947
21
 
22
Navy Bureau of Ships – early 1950s
23
Uranium Rush of 1949
24
Uranium Rush of 1949
25
Uranium Rush of 1949
26
Industry Responds 
Prospecting Drives Down Cost and Size
27
External Extension Probes for Prospecting
28
Precision Radiation Instruments - 1950’s
29
Need Grows for Higher Sensitivity
30
Even More Sensitivity Required – 1950’s
31
Even Larger Scintillator Counters
32
Auxiliary Displays and Meters
33
Long Extension Probes
34
Upgraded Meters and Displays
35
Sears Tower Product Line - 1955
36
Form Factors of All Types
37
Typical Handheld Meters - 1950’s
38
Geiger Counter Kits - 1950’s
39
Novelty Detectors - 1950’s
40
Sylvania’s New Prospector - 1956