ECL Model EC 9 "Crysto-Count" Scintillation Counter (ca. 1955 - 1960)

  The Model EC 9 "Crysto-Count" survey meter was built by Electronic Counter Laboratories Inc. at 418 South Pecan St., Los Angeles California. It was primarily intended for uranium prospecting.

It came with four time constants:

      Air - for airborne or fast moving vehicle

      Fast - for vehicle travelling up to 40 mph

      Medium - for foot or horseback surveys

      Slow - for sample checks and grid surveys.

 

Detector:  NaI crystal, 1.5" diameter, 1" long.

Range: 0 - 0.025, 0 - 0.05, 0 - 0.25, 0 - 0.5, 0 - 2.5 and 0 - 5.0 mR/hr.

Size:  4.5" x 9.5" x 5"

Batteries: one 22.5 volt (e.g., Eveready 412) two 45 volt (e.g., Eveready 455) and four 1.5 volt D cells

 

Kindly donated by Chuck Abraham

References

Electronic Counter Laboratories Inc. Operation Manual. No date.

 

Museum Directory               Survey Instruments

Last updated: 05/10/11
Copyright 1999, Oak Ridge Associated Universities