Name: AT920B, AT920P Pedestrian Radiation Monitors
SKU: 2383
Availability: InStock

AT920B, AT920P Pedestrian Radiation Monitors

Detection of gamma radiation sources in a stream of people crossing borders of controlled facilities.

Rapid accommodation to changes in radiation background
Sound and light alarm
Multiple pedestrian radiation monitors (up to 32) can be joined into a network controlled by application software running on a PC
Mobility and rapid deployment for passage control
High reliability and self-check function
Backup power source

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	AT920B	AT920P
Scintillation detector	NaI(Tl) Ø63×160 mm	Plastic Ø70×150 mm
Registered radiation	Gamma radiation	Gamma radiation
Energy range	50 keV – 3 MeV	20 keV – 3 MeV
Typical sensitivity to gamma radiation	cps/(µSv·h^-1) 30650 (²⁴¹Am) 4900 (¹³⁷Cs) 3140 (⁶⁰Co)	cps/(µSv·h^-1) 10000 (²⁴¹Am) 3200 (¹³⁷Cs) 1600 (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	0.04 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)	2.3 MBq (²⁴¹Am) 370 kBq (¹³⁷Cs) 190 kBq (⁶⁰Co)
False alarm rate	≤1 for 8 h of continuous operation
PC interface	RS485
Continuous battery operation time	≥6 h
Protection class	IP54
Dimensions	Ø350×1220 mm
Weight	14.5 kg	13.5 kg

AT920B, AT920P Pedestrian Radiation Monitors

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