Search Alarm Dosimeter DKS-02PN

  • State Sanitary-Epidemiological Conclusion # 05.03.02-04/66342 of June 21, 2011
  • ТУ У 33.2-22362867-023:2011
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  • Description
  • Description
  • Description


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

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, X-ray and neutron radiation.

  • Measurement of ambient dose equivalent (DE) of gamma and X-ray radiation.

  • Determination of gamma, X-ray and neutron radiation intensity.


  • 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.

  • 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.

Key Specifications

Gamma sensitivity for  (137Cs), not less than (pulse/s)/(µSv/h) 200
Neutron sensitivity for:
– thermal neutrons, not less than (pulse·cm2)/neutron 1.2 ± 0.12
– fast neutrons, not less than (pulse·cm2)/neutron 0.120 ± 0.012
Indication range of photon-ionizing radiation DER 0.01 µSv/h … 1 Sv/h
Indication range of neutron radiation DER 0.01 µSv/h … 10 mSv/h
Indication range of photon-ionizing radiation count rate cps 1 … 25000
Indication range of neutron radiation count rate cps 0.01 … 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 radiation MeV 0.02 … 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 radiation from thermal neutrons to 14 MeV
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 dosimeter from Li-Ion  storage battery V 3.7
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 than h 45
Operating temperature range 0C -20 … +50
Dimensions of the dosimeter without a clip, not more than mm 67 x 127 x 30
Weight of the dosimeter, not more than kg 0.28


  • Pattern Approval Certificate of Measuring Instruments # UA-MI/1-2800-2012 of April 6, 2012 (У3229-12 number in the State Register for Measuring Instruments)

  • Conformance Certificate of Measuring Instruments with the Approved Pattern # UA-MI/2-5269-2015 of December 31, 2015

Delivery Kit

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


Is used for:
  • 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.