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Model 44-17
Gamma Detector
Part Number: 47-1547
Specifications
Options
Documents
Replacement Parts
Specifications
Options
Documents
Replacement Parts
Specifications
Indicated Use
125
I and low-energy gamma survey
Detector Type
NaI(Tl) scintillator, 5.1 cm (2 in.) dia. x 0.2 cm (0.08 in.) thick
Window
86 mg/cm
2
Window Area
Active:
17.8 cm
2
(2.8 in
2
)
Open:
17.8 cm
2
(2.8 in
2
)
Efficiency (4π)
125
I:
40% (derived from
129
I efficiency)
129
I:
22%
Typical Sensitivity (
125
I)
2500 cpm per µR/hr
Typical Background
(10 µR/hr field)
≤ 1500 cpm
Recommended Energy Range
10 to 200 keV
Photomultiplier Tube
5.1 cm (2.0 in.) diameter
Operating Voltage
500 to 1200 V (typical)
Temperature Range
-15 to 50 °C (5 to 122 °F)
May be certified to operate from -40 to 60 °C (-40 to 150 °F)
Connector
Series "C" (others available)
Construction
Aluminum housing with beige powder coat
Size (Dia x L)
6.7 x 22.9 cm (2.6 x 9 in.)
Weight
0.7 kg (1.5 lb)
Options
Option
Description
Part Number
Model 180-7
Sample holder for 5.1 cm (2 in.) max. diameter samples.
47-1582
Model 180-9
Sample holder with lead shielding for 5.1 cm (2 in.) max. diameter samples.
47-1591
Detector Collimators
Lead collimators.
Various.
Sample Planchets
Set of 500 aluminum or stainless steel sample planchets.
Depends on material.
Documents
Data Sheet
Manual
CE Certificate
Energy Response Curve
Detector Clips
Replacement Parts
Description
Part Number
Window Assembly
4260-055
NaI(Tl) Scintillator
01-5166
2 in. PMT, Based Tube without Voltage Divider
01-5919
Red Protective Cap
03-5477
Related Products
Model 44-3
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