High-sensitivity device intended to detect and localize radioactive and nuclear materials by their external gamma and neutron radiation. It is widely used by the Border Guard Service and environmental inspections to prevent illicit transfer of radioactive materials across the state borders.
For the sake of convenience the dosimeter operates with both split vibration and audible warning device, and additional wrist vibration and audible warning device, which is connected with the dosimeter through Bluetooth. Communication with the PC is also done via Bluetooth technology.
- The dosimeter operates with both split vibration and audible warning device, and additional wrist vibration and audible warning device (wrist warning device), which is connected with the control panel of the dosimeter through Bluetooth radio channel and does not require wire connection.
- Data communications between the control panel and the PC is done via Bluetooth technology.
- The dosimeter operates under the following conditions:
– ambient air temperature from -20 to +50 °С;
– relative humidity up to 95% at +35 °С, non-condensing;
– atmospheric pressure from 84 to 106.7 kPa.
|Gamma sensitivity for 137 Cs, not less than||cps/(µSv/h)||180|
|Neutron sensitivity for:- thermal neutrons, not less than- fast neutrons, not less than||(pulse cm2)/neutron||1.2
|Indication range of photon-ionizingradiation DER||µSv/h||0.01 … 100|
|Main relative permissible error limit of photon-ionizing radiation DER measurement in the range from 0.1 to 100 µSv/h with confidence probability of 0.95 (137Cs)||%||±(15+2/H*(10)), where H*(10) is a numeric value of measured DER equivalent to µSv/h|
|Energy range of detected photon-ionizing radiation||MeV||0.033 … 3.000|
|Energy dependence of the dosimeter readings during photon-ionizing radiation DER measurement in the energy range of 0.05 – 3.00 MeV in relation to 0.662 MeV energy (137Cs)||%||±25|
|Energy range of detected neutron radiation||MeV||from thermal to 14.00|
|Setup time of operating mode of the dosimeter, not more than||min||1|
|Calibration time relative to gamma background||s||2 … 60|
|Response time for photon-ionizing radiation DER variation greater than 10 times||s||0.25|
|Operating supply voltage of the control panel of the dosimeter from AA nickel metal hydride storage battery||V||1.2|
|Operating supply voltage of the wrist warning device from battery of two AAA nickel metal hydride storage batteries||V||2.4|
|Time of continuous operation of the control panel of the dosimeter with fully charged storage battery of 2700 mAh under conditions of normal background radiation :|
|– with the connected split warning device and no display backlight, not less than||h||400|
|– with the connected wrist warning device and no display backlight, not less than||h||110|
|Operating temperature range||°С||-20…+50|
|Dimensions of the control panel of the dosimeter, not more than||mm||110х36х83|
|Weight of the control panel, not more than||kg||0.4|
|Dimensions of the wrist warning device, not more than||mm||65х54х23|
|Weight of the wrist warning device, not more than||kg||0.1|
|Dimensions of the split warning device, not more than||mm||30х68х19|
|Weight of the split warning device with the cable, not more than||kg||0.07|