• registration of gamma-ray spectra and identification of radionuclides;
  • measuring radionuclide activity in building materials, mineral raw materials, waste products, food stuff and other materials in the Vessel Marinelli geometry.

The gamma-ray spectrometer "ATOLL-1M" can operate both in laboratory conditions (with low- background protection) and in field conditions. The instrument has an effective system of thermal compensation.

Delivery set:

The gamma-ray spectrometer "ATOLL-1M", notebook; specialized software; USB-cable; set of operational documentation, certificate about metrological documentation.

Range of registered of gamma-quantum energy from 0.05 to 3.0 MeV
Relative energy resolution of Gamma-ray  line Cs137 Not more than 7,5 %
Integral nonlinearity, % Not more than ±1
Maximum permissible major relative measurement error of samples activity in 1 litre Marinelli vessel at 1 hour exposure time , % Not more than ±30
Minimum detectable activity of Cs137 at 1 hour exposure time, Bq/kg Not more than 2 ( in 10-fold shielded chamber )
Detector material Nal(TI) diam.63x63
Version of detector unit Sealed
Maximum statistical charge , c-1 Not less than 104
Number of channels of the amplitude analyser 1024
Channel capacity 1000000
Reducing integral background count of detector block in the low background protection 10 times
The gamma-ray spectrometer "ATOLL-1M" is powered from computer by means of USB cable, consumption current Not more than 100 mA
Mode of operation Round-the-clock
Average lifetime of spectrometer 6 years
Operation conditions:
ambient temperature From minus 20°C up to 35°C
relative humidity Up to 95 %
Warranty period 18 months

New algorithm of thermal compensation realized in spectrometer enable to carry out measurements in conditions of changeable temperature without calibration.