The Model 43-68 is a large area gas proportional detector for use in simultaneous alpha/beta surveys as well as alpha or beta surveys
PART NUMBER:47-2005
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 thickness available)
WINDOW AREA:
Active - 126 cm²
Open - 100 cm²
EFFICIENCY (4pi geometry): Typically 20% - 239Pu; 30% - 99Tc; 15% - 14C; 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 microR/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: 3.9"(10cm)H X 4.6"(11.7cm)W X 7.8"(19.8cm)L
WEIGHT: 2 lbs (0.9kg)
Replacement Parts
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