Espectrómetro AT6101DR

AT6101DRAT6101DR Multifunction portable spectrometer is designed for radionuclide identification, 40K, 226Ra, 232Th natural radionuclide content measurement, 134Cs and 137Cs man-made radionuclide surface activity in situ measurement in soils and subsoils, as well as specific 137Cs and 134Cs radionuclide activity measurement in water, foodstuffs, agricultural and forestry products without preliminary sampling.
Spectrometer may also be used for measurement of ambient gamma-radiation dose equivalent rate on objects of radiation monitoring.
Internal GPS-receiver provides measurement data geo-referencing function.





  • Smart probe in sealed container
  • Detecting unit-handheld PC wireless connection via Bluetooth-adapter at up to 10 m
  • Measurement results can be viewed as index maps of monitored radionuclide concentration allocation or gamma radiation dose rate
  • Available measuring geometries: 2π and 4π
  • Instant detection of near background dose rate level increase
  • Automatic LED stabilisation and measurement path temperature compensation
  • Setting up procedure and parameter check using check sample that contains KCl salt with naturally occurring radionuclide 40K
  • Expert mode for detailed instrument spectrum analysis with automatic sample radionuclide content identification


  • Radioecological monitoring of environment
  • Radiation monitoring of 137Cs and 134Cs radionuclide concentration in environment objects
  • Geological survey
  • Surface 134Cs and 137Cs radionuclide contamination monitoring in naturally-occurring conditions
  • Radioactive waste monitoring
  • Construction material and products radiation monitoring of natural radionuclide content
  • Dosimetry survey of ground and facilities, radioactive mapping

Detecting unit in a temperature-and-shock-resistant dust-proof and moisture-proof container detects gamma-radiation of monitored radionuclides.
Spectrometric data from detecting unit is sent via Bluetooth-adapter to a hand-held PC and is displayed on its LCD screen.
Instrumental spectra processing algorithm in hand-held PC software allow displaying of radioisotope composition data in the form of specific or surface activity of certain radionuclides or their concentration, specific effective activity of natural radionuclides.
Ambient gamma-radiation dose equivalent rate value in inspection point is determined by instrument spectrum analysis with “spectrum-dose” operational function.
Radioactive anomalies are searched in integral count rate measurement mode.
AT6101DR Spectrometer meets International standard requirements: IEC 60529:2001;
Safety standard requirements: IEC 61010-1:1990;
EMC requirements: EN 55022:1998+А1:2000+А2:2003, EN 55024:1998+A1:2001+A2:2003, IEC 61000-4-2:2001, IEC 61000-4-3:2008.


Gamma radiation detector Scintillator NaI(Tl) Ø63x63 mm
Energy range 50 keV...3 MeV
Measurement range for:  
                        40K, 226Ra, 232Th effective specific activity in geometry:  
                        2π 100 Bq/kg...104 Bq/kg
                        4π 50 Bq/kg...104 Bq/kg
                        134Cs, 137Cs surface activity in geometry:  
                        2π 4...3700 kBq/m2(0.1 ...100 Cu/km2)
                        137Cs, 134Cs activity in geometry:  
                        4π 50 Bq/kg...106 Bq/kg
Intrinsic relative error of monitored radionuclide concentration measurement ±30% max.
Relative energy resolution for 137Cs ≤9.5%
Maximum input statistical load ≥5·104 s-1
Number of ADC channels 512/1024
Ambient gamma radiation dose equivalent rate measuring range 0.01...100 µSv/h
Intrinsic relative error of ambient gamma radiation dose equivalent rate measurement ±20% max.
Operation mode set up time 1 min
Integral nonlinearity ±1% max.
Continuous work time in normal conditions ≥9 h
Measurement instability during continuous service ≤1%
Operating temperature range -20°C...+50°C
Relative humidity with air temperature ≤35°C without condensation ≤95%
Protection class IP67
PC Interface USB
Overall dimensions  
            Hand-held PC 100x250x60 mm
            Detection unit Ø130x500 mm
            Hand-held PC 0.5 kg
            Detection unit 4.5 kg


Servicios a la Industria Nuclear y Convencional, S. A. de C. V.
Cumbres de Acultzingo #26 Int. 104
Col. Narvarte Oriente, Del. Benito Juárez, C. P. 03020, Ciudad de México
Teléfono: (55) 5523 5400     E-mail: