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PURPOSE
- Search for neutron sources
- Search for Pu contamination
- Inspection of nuclear waste
- Monitoring of neutron radiation fields
DETECTORS
- Neutron detector: 6 3He counters in polyethylene moderator
- Gamma detector: CM counter
APPLICATION
The major application area is the control for illicit trafficking of nuclear materials. The device can be used at customs checkpoints,
airports, special processes, etc.
BASIC DATA
Absolute neutron efficiency of the detector (for fission spectrum), s-1cm-2
False alarm rate, per 10 min
Dust and moisture protection
Operating temperatures, °С
Continuous operation, h
Weight, kg
Overall dimensions, mm |
20
1
IP54
- 20 + 50
16
5
300 x 150 x 200 |
FEATURES
- Advanced functions of search for and localization of radiation sources
- Measurement of gamma radiation EDR to ensure safety of personnel
- Operation of all functions with five buttons
- High enviromental stability
MAIN OPERATION MODES
SEARCH
Search for neutron sources by comparing the current counting rate of the neutron detector with the threshold value with regard for statistical significance.
Characteristics:
Detection, at the distance 1m on the move at the speed 0.5 m/s af a Cf-252 neutron
sorce with the neutron flux, s-1
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1,5 x 104
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Detection, at the distance 1m and exposure for 5 s, of a weapon grade Pu sample with
the weight, g |
100 |
DOSE RATE
- Measurement of gamma and neutron EDR
Characteristics:
| Radiation type |
Measured
quantity |
Measurement
range |
Energy range of measured
radiation, or nuclide |
Basic error, % |
Neutron
Gamma |
EDR, μSv/h
EDR, μSv/h |
1 - 103
1 - 104 |
Pu - Be source
0,03 - 1,5 MeV |
±40
±30 |
- Search for and localization of neutron sources with light and sound indication at frequencies proportionate
to radiation intensity.
SERVICE FUNCTION
- Timer/counter mode
- Set up of measurement parameters
- Storage of measurement results in NVRAM
- Data exchange with PC
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