• Ludlum Model 44-40 Lead Shielded pancake style GM Probe

    Ludlum

  • $400.00 $810.00

  • We currently have 6 in stock.
  • Description

    Ludlum Model 44-40

    Specifications

     

    INDICATED USE: alpha, beta, gamma survey; sample counting
    DETECTOR: pancake-type, halogen quenched GM
    WINDOW: 1.7 + 0.3 mg/cm² mica with stainless steel protective screen
    WINDOW AREA: 15.51 cm² (2.4 in²) active, 12.26 cm² (1.9 in²) open
    EFFICIENCY (4π): 5% for 14C; 22% for 90Sr/90Y; 19% for 99Tc; 32% for 32P; 15% for 239Pu
    SENSITIVITY (137Cs gamma): 3300 cpm/mR/hr
    ENERGY RESPONSE: energy dependent, see curve below
    BACKGROUND: 25 cpm
    GAMMA FRONT TO BACK RATIO: 4 to 1
    LEAD SHIELD THICKNESS: 1.3 cm (0.50 in.)
    DEAD TIME: 80 microseconds

    OPERATING VOLTAGE: 900 volts
    CONSTRUCTION: painted lead housing
    SIZE: 11.4 x 10.2 x 16.5 cm (4.5 x 4 x 6.5 in.) (H x W x L)
    WEIGHT: 2.5 kg (5.5 lb)

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