• Ludlum 43-20 Gas Proportional Detector

    Ludlum

  • $175.00

  • We currently have 13 in stock.
  • Description

    The Model 43-20 is very similar to the Model 43-68 which replaced it.  You get these at a slight discount.  A large area gas proportional detector for use in simultaneous alpha/beta surveys as well as alpha or beta survey

    INDICATED USE: Alpha-beta survey
    RECOMMENDED COUNTING GAS: P-10 (10% methane, 90% argon)
    GAS RECHARGE: Will operate on a static charge for over 15 hours with a 39" cable
    WINDOW: Typically 0.8 mg/cm² aluminized mylar (other thicknesses available)
    WINDOW AREA:
    Active - 181 cm²
    Open - 143 cm²
    EFFICIENCY (4pi geometry): Typically 20% - Pu-239; 30% - Tc-99; 15% - C-14; less than 1% - gamma
    BACKGROUND:
    Alpha - Less than 5 cpm (when operating on the alpha only plateau region)
    Beta - Typically 400 cpm or less (10 micriR/hr field)
    COMPATIBLE INSTRUMENTS: Model 12, 16, 18, 2000, 2200, 2221, 2224, 2225, 2241, 2350-1
    OPERATING VOLTAGE:
    Alpha - Typically 1000 - 1500 volts
    Beta-gamma - Typically 1600 - 1800 volts
    COUNTER THRESHOLD SETTING: Typically 2 - 5 mV
    GAS CONNECTORS: Double end quick disconnect
    CONNECTOR: Series "C" (others available)
    CONSTRUCTION: Anodized aluminum housing
    TEMPERATURE RANGE: -4° F(-20° C) to 122° F(50° C)
    May be certified for operation from -40° F(-40° C) to 150° F(65° C)
    SIZE: 3"(7.6cm)H X 5"(12.7cm)W X 8"(20.3cm)L
    WEIGHT: 2 lbs (0.9kg)X

  • Ludlum 43-20 Gas Proportional Detector
  • Ludlum 43-20 Gas Proportional Detector

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