Ludlum 43-68
$50
Alpha/Beta Gas Proportional Probe
Gas proportional (126 cm2 active area) used for surface contamination monitoring. Must be charged with P-10 counting gas.
Weekly Price: $50Monthly Price: $125- Description
Description
Specifications
INDICATED USE: Alpha beta survey
RECOMMENDED COUNTING GAS: P-10 (10% methane, 90% argon)
GAS RECHARGE: Will operate on static charge for at least 15 hours with 39″ cable; 5 hours in alpha/beta mode
WINDOW: 0.8 mg/cm2 aluminized mylar (other thicknesses available)
EFFICIENCY (4pi): 20%-239Pu; 15%-14C; 30%-99Tc; 30%-90Sr/90Y less than 1% – gamma
Simultaneous Alpha/Beta Counting: 17.5%-239Pu; 20%-99Tc; 20%90Sr/90Y
BACKGROUND:
Alpha – Less than 7 cpm (when operating at Alpha only plateau region)
Beta-Gamma – Typically 350 cpm (10 mR/hr field)
SUGGESTED INSTRUMENTS: Models 12, 16, 18, 2000, 2200, 2221, 2224-1, 2241-2, 2350-1, 2360
OPERATING VOLTAGE:
Alpha – Typically 1100 – 1400 volts
Beta-Gamma – Typically 1600- 1800 volts
COUNTER THRESHOLD SETTING: Typically 2-5 mV
GAS CONNECTORS: Double end quick disconnect
WINDOW AREA: 126 cm2 active, 100 cm2 open
SIZE: 3.9″ H x 4.6″ W x 7.8″ L (10 x 11.7 x 19.8 cm)
WEIGHT: 2 lb (0.9 kg)
