Pancake GM Probe

Model Number:

051-449


051-449  Pancake GM Probe

  • Used for alpha, beta and gamma survey
  • Indicated Use: alpha, beta, & gamma survey; frisking; sample counting
  • Detector: pancake-type, halogen-quenched GM
  • Window: 1.7 ± 0.3 mg/cm2 mica
  • Window Area: 15.51 cm2 (2.4 in2 ) active; 12.26 cm2 (1.9 in2 ) open
  • Efficiency (4Π geometry): 5% for 14C, 22% for 90Sr/90Y; 19% for 99Tc; 32% for 32P; 15% for 239Pu, ≤ 1% for 99mTc; 0.2% for 125I
  • Sensitivity: typically 3300 cpm/mR/hr ( 137Cs gamma)
  • Energy Response: energy dependent
  • Background: 60 cpm
  • Dead Time: typically 80 microseconds
  • Operating Voltage: 900 Vdc
  • Connector: series "C" (others available)
  • Construction: aluminum housing with beige powder-coat finish and stainless steel protective screen (79% open)
  • Temperature Range: 5° to 122°F, maybe certified for operation from -40°  to 150°F