RCL Model 10301 GM Tube (1958)
This Radiation Counter Laboratories Model 10301 came with Certificate of Inspection dated 5-6-58.
Unfortunately, I have no literature regarding this particular tube. However, an RCL catalog states "The RCL Series 103 Detectors are sensitive to beta and low energy gamma radioactivity. Constructed from thin-wall glass or metal tubing, they are suitable for a wide variety of general purpose radioactive detection requirements. . . .Series 103 detectors are virtually insensitive to count rate variation due to temperature change, are non-photosensitive, and exhibit no hysteresis."
Size: 5 3/4" long and 3/4" in diameter
Operating Voltage: 950 - 1100 volts
Cathode: silver coating on inside of glass wall.
Wall Thickness: probably 30 mg/cm2
Radiation Counter Laboratories catalog, Radiation Detectors, no date.
Donated by the University of Kansas courtesy of Michael Lemon
Last updated: 07/25/07
Copyright 1999, Oak Ridge Associated Universities