Exploration dosimeter-radiometer
MKS-11GN SPECTRA
A highly sensitive, compact survey dosimeter-radiometer (SPRD) for the detection, localisation and identification of radioactive and nuclear materials based on their gamma and neutron radiation, as well as their gamma spectrum. The device automatically identifies the radionuclide and indicates its category in accordance with IAEA requirements.
Key features
- CsI(Tl) scintillation detectors – for gamma rays, and LiI(Eu) scintillation detectors – for neutrons, with a silicon photomultiplier, and a Geiger-Müller counter for high dose rates,
- identification of 26 radionuclides: medical, industrial, natural and nuclear materials,
- 2048-channel gamma spectrum analyser, capable of storing 250 complete spectra,
- a built-in GPS receiver and software for analysing and mapping measurements,
- IP67 dust- and water-resistant casing, weight up to 0.28 kg,
- compliance with ANSI standards N42.48, N42.32 and N42.33.
- Dose rate range (gamma)
- 0.01 µSv/h – 1 Sv/h
- Dose rate range (neutrons)
- 0.01 – 10,000 µSv/h
- The energy range of photons
- 0.02 – 3 MeV
- Sensitivity (¹³⁷Cs)
- 400 counts per second per µSv per hour
- Working hours
- over 200 hours (without GPS), USB charging
- Dimensions
- 67 × 127 × 30 mm
Application: radiographic inspection of scrap metal and cargo, detection of radioactive sources in transport, border security, emergency services, and facilities and institutions working with radioactive sources.


