GAMMA-1S/NB1-01 (-02, -03)

Description

Non-intrusive customs inspection of legally and illegally transported radioactive and fissile materials without opening their transport or shielding containers
Radiation monitoring of areas close to radiation hazardous facilities: nuclear power plants, nuclear fuel cycle facilities, military sites, etc.
Environmental monitoring of various objects for contamination with gamma emitting radionuclides, also as part of radiological mobile laboratories
Radiochemical monitoring of technological processes

Gamma detecting device based on the following crystals:
- Ø40×40 mm NaI(Tl) for GAMMA-1S/NB1-01
- Ø38×38 mm LaBr₃(Ce) for GAMMA-1S/NB1-02
- Ø25×25 mm LaBr₃(Ce) for GAMMA-1S/NB1-03
Stabilization of measuring path based on a special LED with gain temperature correction
Digital processing of signals
RS, USB or Bluetooth connection of the detecting device to the PC
Mains or battery power supply
Extended temperature range
Applied algorithms of spectra processing ensure high reliability and validity of results
Possibility to use a standard Marinelli vessel as a measurement geometry

Range of registered gamma energies	0.05 to 3 MeV
Relative energy resolution of the 662 keV (Cs-137) line	8.0 % max (for GAMMA-1CS/NB1-01) 3.5 % max (for GAMMA-1CS/NB1-02 and GAMMA-1SC/NB1-03)
Integral non-linearity	±1 %
Activity measurement range for radionuclide Cs-137 radionuclide	8 to 1·10⁵ Bq the lower limit of the measured activity range is given for measurement time of 1 hour and point geometry
Range of gamma dose rate measurement at tolerable relative error of ±20 %	0.1 to 100 μSv/h
Absolute efficiency of gamma-quanta registration with energy of 662 keV (Cs-137) at a distance of 25 cm from the source to the detector	0.0003 min (for GAMMA-1S/NB1-01) 0.00035 min (for GAMMA-1S/NB1-02) 0.0001 min (for GAMMA-1S/NB1-03)
Limits of tolerable elative error for activity measurement (Р=0.95)	±(10 to 50) %
Maximum statistical load	1.5·10⁵ cps min (for GAMMA-1S/NB1-01) 2.5·10⁵ cps min (for GAMMA-1S/NB1-02 and GAMMA-1S/NB1-03)
Number of channels	1024
Time instability over the 24-h period of continuous operation	1 % max
Operating mode setting time	30 minutes max
Run time on the built-in batteries	8 hours min
Continuous operation in ~220 V mains mode	unlimited
Environmental	-20 to +50 °C, 95 % at +35 °С and lower temperatures without moisture condensation

Comply with the requirements of the Technical Regulations of the Customs Union on safety of low voltage equipment (TR CU 004/2011), Technical Regulations of the Customs Union on electromagnetic compatibility of technical means (TR CU 020/2011)
Registered in the State Register of Measuring Instruments under the following numbers:
- GAMMA1S/NB1-01 and GAMMA-1S/NB1-02 – No 16367-10
- GAMMA-1S/NB1-03 – No 77614-20

Activity of radionuclides in investigated samples. Measurement procedure for gamma spectrometers using the SpectraLine software”. Number in the Federal Information Fund for Ensuring the Uniformity of Measurements is ФР.1.40.2014.18318
Procedure for measuring gamma emitting radionuclides in investigated samples using gamma spectrometers with SpectraLine and Nuclide Master Plus software Number in the Federal Information Fund for Ensuring the Uniformity of Measurements is ФР.1.38.2022.43932
Procedure for measuring the activity of gamma-emitting radionuclides in waste containers using a gamma spectrometric complex with the LSRM SpectraLine and EffMaker software. Number in the Federal Information Fund for Ensuring the Uniformity of Measurements is ФР.1.40.2019.35796