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University of Pittsburgh
Program Areas

Recommendations for
Survey Instruments
in Isotope Laboratories

For general contamination survey purposes, an instrument with a 2" pancake detector is preferred. The following instruments are recommended:

  • Technical Associates (818-883-7043) Model TBM-3S
    0-50K cpm 3 range Internal detector $525
  • Johnson (Fisher Scientific Cat No 18-588A) Model GSM-110/GP
    0-50K cpm 3 range Internal detector $825
  • Johnson (Fisher Scientific Cat No 18-588B) Model GSM-110/HP
    0-50K cpm 3 range Pancake detector $1,020
  • Ludlum (Laco 440-729-3034) Model 3
    0-500K cpm 4 range
    with 44-9 pancake detector $710

For detection of I-125, an instrument with a scintillation detector is preferred. The following instrument is recommended:

  • Ludlum Model 3
    0-500K cpm 4 range
    with 44-3 thin window scintillator $990

Specification sheets for these instruments are available from our office.

Note that other instruments and detectors (i.e., end window, etc.) are available and may be appropriate for specific research problems. Please contact our office for additional information regarding your application.