MODEL 14C SURVEY METER WITH PANCAKE GM PROBE

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Satisfies NRC requirements for Nuclear Medicine Departments

  • Monitors alpha, beta, and gamma
  • 0-2 R/hr Range
  • External pancake GM probe (39" cable included)
  • Internal energy compensated GM detector
  • Five counting scales (x0.1, x1, x10, x100, x1000)
  • Alpha Efficiency – 30%
  • Beta Efficiency – 10% for C-14, 45% for Sr-90
  • Gamma Efficiency – 38% for Tc-99
  • Sensitivity – 3300 cpm/mR/hr for Cs-137

Our most frequently ordered survey instrument for nuclear medicine applications, the portable Model 14C Survey Meter with Pancake GM Probe meets the essential monitoring and surveying needs of most Nuclear Medicine facilities. The external pancake probe is used to check hands, clothing, floors, furniture, equipment, and package surfaces for contamination. For background readings, the unit’s built-in energy-compensated GM detector handles counts up to 2 R/hr. For beta emitters, the pancake probe has approximately twice the counting efficiency as an end-window detector. For high-range gamma detection, the internal detector with the x1000 multiplier range is used. The meter features a built-in speaker with ON/OFF switch, front-access calibration controls, push-button reset to zero the meter, and a toggle switch to select FAST (4 sec.) or SLOW (22 sec.) response.

SPECIFICATIONS

Survey Meter

  • Compatible Detectors: GM, Scintillation
  • Meter Face: 0-2 mR/hr, 0-6.6k cpm, battery test
  • Threshold: 30 mV ± 10 mV
  • Multiplier Ranges: x0.1; x1; x10; x100 for external detector; x1000 for internal detector
  • Internal Detector: Energy-compensated GM, for high range gamma detection only; 2000 mR/hr
  • High Voltage: 900V
  • Response: Toggle switch for FAST (4 seconds) or SLOW (22 seconds) for 90% of final reading
  • Reset: Push button to zero meter after over-range exposure
  • Audio: Built-in unimorph speaker with ON/OFF switch
  • Sensitivity: 2100 cpm/mR/hr for Cs-137
  • Batteries: 2 each, size “D”, typical life 600 hours
  • Construction: Painted aluminum housing
  • Dimensions: 3.5" w x 6.5" h x 8.5" l (9 x 16.5 x 22 cm)
  • Weight: 3.5 lb (1.6 kg) including batteries

Pancake GM Probe

  • Indicated use: alpha, beta, and gamma surveying; sample counting
  • Detector: Pancake type halogen quenched GM
  • Window: 1.7 ±0.3 mg/cm² mica
  • Window Diameter: 1.75" (4 cm)
  • Window Area: 15.5 cm² active, 12 cm² open
  • Efficiency (4pi): 5% for C-14, 22% for Sr-90 and Y-90, 19% for Tc-99, 32% for P-32, 15% for Pu-239
  • Gamma Sensitivity: 3300 cpm/mR/hr for Cs-137
  • Energy Response: Energy dependent
  • Operating Voltage: 900 volts
  • Protective Screen: 79% open, stainless steel
  • Housing: Painted aluminum
  • Cable: 39" l (99 cm), type “C” connectors
  • Dimensions: 1.8" h x 2.7" w x 10.7" l (4.6 x 6.9 x 27.2 cm)
  • Weight: 1 lb (0.5 kg)

051-013 - Survey Meter, Model 14CIncludes Internal Energy-Compensated GM Detector, External Pancake GM Probe, Cable and mounted Check Source (Cs-137, 1.0 µCi).