Search Alarm Dosimeter DKS-02PN

  • Complies with ANSI 42.32 & 42.33 standards
  • State Sanitary-Epidemiological Conclusion # 05.03.02-04/66342 of June 21, 2011
  • ТУ У 33.2-22362867-023:2011


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.

Purpose of Use

  • Search (detect and localize) for radioactive and nuclear materials by their external gamma and neutron radiation.
  • Measurement of ambient dose equivalent rate (DER) of gamma and X-ray radiation.
  • Indication of ambient dose equivalent rate (DER) of neutron radiation.
  • Measurement of ambient dose equivalent (DE) of gamma and X-ray radiation.
  • Determination of gamma, X-ray and neutron radiation intensity.

Key Specifications

Gamma sensitivity for  (137Cs), not less thanNote. Upon customer request sensitivity can be changed to a value of not less than 400 cps/(µSv/h)(pulse/s)/(µSv/h)200
Neutron sensitivity for:  
– thermal neutrons, not less thanpulse·cm2/neutron1.2 ± 0.12
– fast neutrons, not less thanpulse·cm2/neutron0.120 ± 0.012
Measurement range of photon-ionizing radiation DER0.01 µSv/h … 1 Sv/h
Indication range of neutron radiation DER0.01 µSv/h … 10 mSv/h
Measurement range for Gamma and X-ray radiation ambient dose equivalent0.1 µSv … 9,999 Sv
Indication range of photon-ionizing radiation count ratecps1 … 25000
Indication range of neutron radiation count ratecps0.01 … 25000
Main relative permissible error limit of photon-ionizing radiation DER measurement with confidence probability of 0.95 (137Cs)%±(15+1/H*(10)), where H*(10) is a numeric value of measured DER equivalent to μSv/h
Energy range of detected photon-ionizing radiationMeV0.02 … 3.00
Energy dependence of the dosimeter readings during photon-ionizing radiation DER measurement it the energy range of 0.05 to 3.00 MeV relative to 0.662 MeV energy (137Cs)%±25%
Energy range of detected neutron radiationfrom 2,5·10-8 to 14 MeV
Setup time of operating mode of the dosimeter, not more thanmin1
Calibration time relative to gamma backgrounds2 …. 60
Response time for photon-ionizing radiation DER variation greater than 10 timess0.25
Operating supply voltage of the dosimeter from Li-Ion  storage batteryV3.7
Time of continuous operation of the dosimeter with fully charged storage battery under conditions of normal background radiation with switched off display backlight, not less thanh200
Operating temperature range0C-20 … +50
Dimensions of the dosimeter without a clip, not more thanmm67 x 127 x 30
Dimensions of the dosimeter with a clip, not more thanmm67 x 127 x 45
Weight of the dosimeter, not more thankg0.28


  • New generation high sensitivity CsI scintillation detectors of gamma and LiI of neutron radiation with solid state (silicon) photomultiplier.
  • Color display with high resolution.
  • Integrated GPS/GLONASS-receiver.
  • No “microphone effect”.
  • High thermal stability.
  • Audio and vibration alarm of threshold levels exceeding.
  • Threshold alarm system with four independent threshold levels:
    – search threshold level (threshold level of count rate from the detector photon and neutron ionizing radiation);
    – safety threshold level (threshold level of photon ionizing radiation DER);– accumulated dose threshold level.

  • Light color alarm (indication) of threshold levels exceeding (gamma radiation – red color, neutron – blue) and visual alarm on the side of the device.
  • The dosimeter communicates with a PC via USB-port.
  • Powered by built-in lithium polymer storage battery that can be charged via USB-cable.
  • Ingress protection rating IP67.

Delivery Kit

  • Search Alarm Dosimeter DKS-02PN “Cadmium”;
  • charger;
  • operating manual;
  • software;
  • packing case.


  • reading measurement results and critical events from the dosimeter memory into the PC
  • report preparation and printout
  • display of the obtained dosimetric information with the GPS-coordinates on the area map.