Floor Contamination Monitor - Model 239-1F_with_12
Specifications
INDICATED USE: floor monitoring for alpha, beta gamma
DETECTOR: gas proportional
RECOMMENDED COUNTING GAS: P-10 (10% methane; 90% argon)
BOTTLE SIZE: typically used with Matheson size 2 or Linde Q
WINDOW: 0.8 mg/cm² aluminized Mylar (window thicknesses of 0.4, 3.9, or 7.9 mg/cm²are available)
ACTIVE AREA: 584 cm²
OPEN AREA: 425 cm²
EFFICIENCY (4Ï€): 17%-239Pu; 25%-90Sr/90Y; gamma < 1%
GAS RECHARGE: will operate on static charge for 2 hours
SUGGESTED INSTRUMENTS: typically used with Model 12, 2221, 2224-1, 2350-1, or 2360
DETECTOR HEIGHT: adjustable from 0.32-7.6 cm (0.125-3 in.) from surface
DETECTOR OPERATING VOLTAGE:
ALPHA: typically 1000-1200 volts
BETA GAMMA: typically 1600-1800 volts
THRESHOLD: typically 2-4 mV
FLOW METER:
IN - adjustable from 0-100 cc/min
OUT - flow indicator from 0-100 cc/min
GAS CONNECTORS: double-end quick disconnect for 0.6 cm (0.25 in.) OD tubing
GAS CONSUMPTION: typically 50 cc/min
CONSTRUCTION:
DETECTOR: anodized aluminum housing with stainless steel hex protective screen (79% open)
CART: 2.5 cm (1 in.) square tubular steel and aluminum with beige powder coat paint, 19.1 cm (7.5 in.) diameter rear wheels, and 10.2 cm (4 in.) diameter swivel casters
DETECTOR SIZE: 2 x 16 x 46.5 cm (0.8 x 6.3 x 18.3 in.) (H x W x L)
CART ASSEMBLY: 106.7 x 40.6 x 69.9 cm (42 x 16 x 27.5 in.) (H x W x L) (excluding detector)
WEIGHT: 11.4 kg (25 lb), excluding gas bottle and counting instrument
