4.1 Detector Specifications
LOW
LEVEL RADIATION DETECTOR
Detector technology
Energy-compensated Geiger-Müller
Types of radiation detected
Cs137, Co60
Calibration Energy (1)
Cs137
Full range
3.5uSv/h to 10mSv/h (2)
Sensor H*(10) dose rate accuracy error
with Cs137 with a calibration at 5mSv/h
●
from 2 to 8 mSv/h (calibration 30s average)
+- 15%
●
from 1 to 10mSv/h (1sec sample rate)
+-20%
Sensitivity
3.5 uSv/h limit of detection H*10
Saturation detection
No
(1) A calibration report is provided with the LOW dose detector
(2) LOW dose Detector are delivered with a calibration at 5 mSv/h with a 137Cs irradiation source to
match below-mentioned specifications. The LOW dose detector can also be user recalibrated to
work with lower dose rate (down to 3.5uSv/h). The range and linearity shall be assessed by the user.
ELIOS 2 RAD USER MANUAL
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