PURPOSE
It is intended for determining the mass of the U-235 elements in the active mode and Pu-239 in the passive mode.
APPLICATION
Control for nuclear materials at factories where they are produced, processed, or stored.
The device has 42 proportional He-3 counters arranged in two rows around the measuring chamber
In the active mode, two Am-Li neutrons sources with intensity 103n/s each are used.
Electronic modules allow the number of coincidences to be analyzed in the optimum time window.
The device parameters are set and the measurement results are processed using the IBM PC type computer to which the device is connected through the RS-232 serial port.
COMPONENTS
- Не-3 counters
- Moderator unit with configuration inserts
- Data acquisition and processing electronics
- Software for data exchange with the computer and data processing.
TECHNICAL DATA
| Detectors |
Proportional 3Не counters |
| Detection efficiency for fission neutrons |
30 % |
| Sensitivity |
thernal mode for 1000 s, U-235
fast mode for 1000 s in the measuring volume Ø320x530, U-235
fast mode for 1000 s in the measuring volume Ø320x200, U-235 |
No less than 5 g
No less than 200 g
No less than 100 g |
Operating temperatures, °С
Power supply, V
Overall dimensions, mm
Weight, kg |
10÷ 50
220
1281 x 1215 x 800
450 |
|
