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LIGHTWEIGHT
ANTI-CHAFE
HANDGRIP
COMPACT
DESIGN
FINE MESH
SCREEN (Model 5505)
ANODIZED
ALUMINUM
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The
model 5500/5505 Pancake probe is designed to detect contamination.
It uses a standard 2" dia pancake GM tube as the detector.
The tube is held firmly in place by three set screws assuring good
electrical contact and strong retainment. The housing is made of
anodized aluminum and is as compact and light as possible. The grip
is made of smooth acrylic and feels warm to the touch. Access to
the GM tube is through the four top screws. Model 5505 has a fine
mesh screen covering the window.
Specifications
 Radiation
detected: Alpha > 3 MeV, Beta > 45 KeV, Gamma > 6 KeV
Window effective
diameter: 1.75 in (4.4 cm)
Window effective
area: 2.4 in2 (15.5 cm2)
Window: 1.5
- 2.0 mg/cm2
Window material:
Mica
Efficiency:
20% Tc99, 30% Sr90. Efficiency based on 4p geometry with 1 in (2.4
cm) dia source. Screen in place.
Gamma sensitivity:
2100 CPM/mR/hr (side exposure CS137) 3600 CPM/mR/h (front exposure
CS137)
Useful Range:
Background to 900 mR/h
Protective
screen: Model 5500 4x4 mesh 77% open; Model 5505 CuBe ridged fine
mesh screen 78% open.
Input connector:
BNC standard. Also available with MHV, C and SHV.
Input series
resistor: 3.3 meg
High Voltage:
900 VDC
Size: 2.75
in (7 cm) dia x 10 in (25 cm) long; Handle is 1 in (2.5 cm) dia
W eight:
10 oz (.28 kg)
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