Radiation Detector:
Large area scintillator (ZnS:Ag)
Light Detection:
PMT
Measuring Mode:
simultaneous and seperate alpha/beta measurement
Sensitive Area:
approx. 345 cm²
Window Thickness:
6 µm aluminized plastic (0.4 mg/cm²)
Grid transmission:
approx. 80%

Efficiency (relative to activity of a
reference source with 100 cm² area):
C-14 (Beta channel): 10%
Cl-36 (Beta channel): 45%
Tc-99m (Beta channel): 10%
Am-241 (Alpha channel): 22%
Background:
approx. 0.1 cps (Alpha channel)
approx. 15 cps (Beta channel)
Measuring Range:
0 to 5000 cps (Alpha channel)
0 to 50000 cps (Beta channel)

Temperature range operation:
-20°C to +40°C
Temperature range storage:
-40°C to +60°C

Humidity:
0% to 95% (without non condensation)
External pressure operation:
500 to 1300 hPa
External pressure storage:
100 to 1300 hPa

Protection:
IP 54

Operational life time with rechargeable batteries
(without illumination):
> 25 h
Operational life time with batteries
(without illumination):
> 65 h

Weight:
1850 g with batteries
Selectable calibration factors:
more than 50 nuclides
Averaging method:
selectable (ratemeter, scaler timer)
Measuring-/Averaging time:
selectable
Data storage:
> 1000 measuring values
Data output:
serial output (RS232)