BDBG-15S for Gamma Radiation Detection

BDBG-15S for Gamma Radiation Detection

Detecting Unit of Gamma Radiation

  • The best choice for unmanned aerial vehicles and mobile robotic devices
  • Highly-sensitive scintillation detector
  • No microphone effect
  • IP65 ingress protection rating
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  • Description


BDBG-15S is designed to measure ambient dose equivalent rate of gamma radiation in a wide range of values. Suitable for unmanned aerial vehicles, mobile robotic devices, and automated systems of radiation monitoring.

The distinctive features of this unit are high sensitivity with minimal weight and dimension parameters, high mechanical resistance, and lack of microphone effect. The ingress protection rating of the unit is IP65. The measurement range can be extended up to 5.0 Sv/h at the customer’s request.

BDBG-15S is available in three modifications: BDBG-15S-09, BDBG-15S-23, and BDBG-15S-90, which differ in size and sensitivity of scintillation detector.

Purpose of Use

Purpose of Use

  • Intelligent detecting units for measurement of ambient dose equivalent rate (DER) of gamma radiation in a wide range of values.


  • High sensitivity regardless of minimum weight and dimensions.

  • Ability to extend a measurement range up to 5.0 Sv/h (on request).

  • Availability of amplitude spectrum (1024 channels).

  • Ingress protection rating – ІР65.

  • High mechanical immunity.

  • No microphonics.

Detector types

  • Scintillation CsI (Tl) detector with a photomultiplier for measurements in the 0.01 μSv/h to 50 μSv/h range (spectrum-dose function):

    – 9 cm3 for BDBG-15S-09

    – 23 cm3 for BDBG-15S-23

    – 90 cm3 for BDBG-15S-90

  • Energy-compensated Geiger-Muller counter for measurements in the 50 μSv/h to 1.0 Sv/h range.



Measurement range of gamma radiation DER from 0.01 μSv/h to 1.0 Sv/h
Main relative error in measurements – not more than 15%.
Energy range from 50 keV to 3.0 MeV
Energy dependence – not more than ±25%
Sensitivity for 137Сs at 1.0 μSv/h, not less than
  • – 200 cps for BDBG-15S-09
  • – 480 cps for BDBG-15S-23
  • – 1500 cps for BDBG-15S-90
Operating temperature range from -30 to +50 оС
Supply voltage from 7 to 32 V
Current consumption – not more than 30 mA
Digital interface RS-485 or UART(RX, TX-3.3V), selected by the customer
Weight, not more than
  • – 0.25 kg for BDBG-15S-09
  • – 0.42 kg for BDBG-15S-23
    • – 0.76 kg for BDBG-15S-90
  • – 57×103×28.5 mm for BDBG-15S-09
  • – 70×140×37 mm for BDBG-15S-23
    • – 80×140×50 mm for BDBG-15S-90
Time to set the operating mode 1 min
Time of integration 5-40 s

Delivery Kit

  • detecting unit;
  • connector;
  • passport;
  • packing box.