BDBG-09SW Detecting Unit of Gamma Radiation

BDBG-09SW Detecting Unit of Gamma Radiation

BDBG-09SW is designed to measure the ambient dose equivalent rate of gamma radiation in natural and artificial reservoirs.

It is used as part of data panel and automated radiation monitoring systems. It is produced using a highly sensitive CsI(Tl) scintillator with a silicon photomultiplier and a Geiger-Muller counter. The detecting unit
is produced in hermetic stainless steel housing with IP68 ingress protection rating.

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PURPOSE OF USE

  • Measurement of the ambient dose equivalent rate (DER) of gamma radiation

FEATURES

    • Data exchange between the detecting unit and the data display system through RS-485 interface.
    • Constant self-testing.
    • Data availability about the statistical error of measurement.
    • Possibility to obtain an amplitude spectrum (1024 channels).
    • When immersed in water, the detecting unit is resistant to exposure of:
      • Water temperature from +3 to +50 °C.
      • Maximum depth of immersion in water is 20 m.

SPECIFICATIONS

Measurement range of gamma radiation DER with the SDUGR 0.01 – 50 μSv/h
Measurement range of gamma radiation DER with the GMC 50 – 106 μSv/h
Main relative permissible error limit of gamma radiation DER measurement at 137Cs calibration with confidence probability of 0.95 (15+1/H*(10)) %, where H*(10) is a numeric value of gamma radiation DER in μSv/h
Energy range of detected gamma radiation 0.05 … 3 MeV
Energy dependence of the detecting unit’s measurement results during gamma radiation DER measurement in the energy range of 0.05 MeV – 1.25 MeV 25 %
Operating supply voltage range of the detecting unit from external regulated power supply 7 … 32 V
Consumption current of the detecting unit for overall range of measured gamma radiation DER, not more than 30 mА
Time of operating mode setting and measurement time of the detecting unit, not more than 3 min
Unstable readings of the detecting unit for a 24-hour continuous operation, not more than 5 %
Complementary permissible error limit of measurement caused by ambient temperature change from -40 °С to +50 °С ±5 per each 10 °С deviation from (20 ± 5)°С
Interface RS-485
Dimensions of the detecting unit without fastening elements, not more than 50 × 60 × 310 mm
Weight of the detecting unit without fastening elements, not more than 5 kg

DELIVERY KIT

  • BDBG-09SW detecting unit ВІСТ.418266.036 with own cable (the length of the cable is 25 m; at the request of the customer, it is possible to supply a cable of a different length by separate order)
  • operating manual (one copy per one consignment of the detecting units)
  • logbook
  • package
  • interface converter isolated PII-1or similar (delivered at the request of the customer by separate order)
  • safety rope (the length of the rope is 25 m; at the request of the customer, it is possible to supply a rope of a different length by separate order)
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