Atomtex AT920B 行人辐射监测器 (γ, 50 keV – 3 MeV)

Scintillation detector: NaI(Tl) Ø63x160 mm

Energy range: 50 keV – 3 MeV

Typical sensitivity to gamma radiation, cps/(µSv·h^-1): 

30650 (241Am)

4900 (137Cs)

3140 (60Co)

Minimal detectable gamma radiation dose rate level above background value 0.1 µSv/h in a period not longer than 2 s: 0.03 µSv/h

Detection threshold for unshielded source at 1 m height under natural radiation background conditions not more  than 0.1 µSv/h (Distance to source 1 m, source travel speed 5 km/h, probability of source detection 80 % under confidence level Р=0.95): 

1 MBq (241Am)

320 kBq (137Cs)

130 kBq (60Co)

Alarm:

Audio-visual alarm

Optional: audio-visual alarm units can be mounted away from the monitor (monitors) location site

False alarm rate: ≤1 for 8 h of continuous operation

Protection class: IР54

PC interface: RS485

Number of monitors connected to a single PC: From 1 to 32

Power supply options:

1) Mains, 110-230 VAC, 50-60 Hz

2) Rechargeable battery up to 6 h

Dimensions: Ø350х1220 mm

Weight: 14.5 kg