APPLICATION
Automatic monitoring of gamma-ray radionuclide specific activity directly in water reservoirs in the regions of nuclear weapons testing, near nuclear storage, nuclear power plants and other objects of nuclear energetics.
FEATURES
-
High sensitivity of radionuclide activity detection;
-
Full autonomy of measurement station data transfer via radio channel or cable channel into the point of information receiving, processing and archiving;
-
Operation simplicity and system high reliability.
COMPLETE SET
Floating monitoring station that is situated on the platform on pontoon and contains:
-
Gamma-ray spectrometer based on submerged high purity germanium or scintillator detector;
-
Transmitter receiver;
-
Microprocessor device for interfaces necessary for automatic operation, self-diagnostic, calibration;
-
Backup accumulators;
-
Accessories for station control, calibration.
Station for receiving, processing and archiving information including:
-
Radio station;
-
Decoding modem connection device with personal computer;
-
Software for spectra description, nuclides identification, calculation of their specific activity;
-
Device for information CD ROM recording.
-
Metrological assurance, set of accessories and necessary instruments.
TECHNICAL CHARACTERISTICS
|
Parameter |
Value |
|
Energy range, keV |
50 - 3500 |
|
HP(Ge) detector efficiency, % |
38 * |
|
Energy resolution for 30% efficiency detector, keV
at energy
122 keV
1.33 MeV |
1.0
1.9 |
|
Detection limit for Cs137 radionuclide specific activity, measurement time 1 hour, Bq/m3 |
200 |
|
Cs137 radionuclide specific activity measurement error for measurement time 1 hour, % |
< 30 |
|
Integral nonlinearity, % |
< 0.05 |
|
Instability of specific activity measurement from calibration source, % |
10 |
|
Time of operation mode setting, h |
< 0.5 |
|
Time of continuous operation without prevention, days |
30 |
* 10% - 160% efficient HP(Ge) detectors are available by separate order.
