Detection unit BDBG-200

Blocks of detection are intended  to measure the equivalent power of the ambient dose H*(10) of gamma radiation and are used with free-running devices(BDBG-200UD; BDBG-200SD), and systems monitoring the radiological situation.
Output signal  corresponds to the standard interface:
• RS – 485 – detection unit BDBG-200 PD

• RS – 422 – detection unit BDBG-200 DD

• RS – 232 – detection unit BDBG-200 SD

• USB 1.1 – detection unit BDBG-200 UD

The contents and the format of the data are defined in the report of the information exchange DiBUS (www.doza.ru)

SPECIFICATIONS

1. Energy range of detected gamma radiation is from 0,06 to 3,0 MeV.
2. Measuring range of the equivalent power of ambient dose H*(10) of gamma radiation is
from 0.1 mkZv / h to 10 Zv / h:
3. The measuring range is divided into two, automatically switching, sub-ranges:
– Subrange “sensitive” channel – from 0.1 mkZv • h-1 to 2.0 mkZv • h-1;
– Subrange “rough” channel – from 0.5 mkZv • h-1 to 10 Zv • h-1.
4. Sensitivity *: “sensitive” channel – (4,4 ± 0,44) at 1 / Zv • h-1
“Rough” channel – (5,0 ± 2,0) at 1 / mZv • h-1.
5. Limits of basic relative error of the block – ± 20%.
6. Energy dependence * in the range from 0,06 to 1,25 MeV – no more than 30%
7. Algorithm for processing measuring data – a method of “moving average”. Integration time is 40 seconds. Exposure – 1 seconds.
8. Dimensions of the unit: diameter is 40 mm, length is 250 mm.
9. Weight is not more than 0,5 kg.

* Radiation of radionuclide cesium-137

ELECTRICAL CHARACTERISTICS
Power supply – is DC voltage from 7,0 to 12,6 V (detection unit BDBG-200UD – 5,0 V). Consumed current is not more than 10 mA.

Designation of the connector’s contacts (plug RS-10) block BDBG-200PD (RS-485).

Designation of the connector’s contacts (plug RS-10) block BDBG-200UD (USB 1.1).