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WM3210
The Model WM3210 Passive/Active Neutron (PAN) Shuffler system uses a high speed transfer mechanism to shuffle a 252Cf interrogation source between a source shield assembly and the counting chamber, giving it the ability to be used for both passive and active neutron coincidence counting of fissionable materials.
Features
- Unique 252Cf Shuffler mechanism for both Active and Passive neutron coincidence counting of 200 L drums
- Active mode sensitivity1, 1000 second count time:
- Fast neutrons: 300 mg 235U
- Thermal neutrons: 3 mg 235U
- Passive mode sensitivity1, 1000 second count time: 4 mg 240Pu
- Rugged mechanical design for in-plant use
- Fast Teleflex source shuffling mechanism with 400 ms transfer time
- Three rpm turntable for barrel rotation
- Sixty-four 3He tubes for 17.5% detection efficiency
- PC-based control and analysis system
Description
The WM3210 system is based upon a design by Los Alamos National Laboratory1, and is available commercially from the Mirion Applied Systems Division through a technology transfer agreement with LANL. The Model WM3210 Passive/Active Neutron (PAN) Shuffler system uses a high speed transfer mechanism to shuffle a 252Cf interrogation source between a source shield assembly and the counting chamber, giving it the ability to be used for both passive and active neutron coincidence counting of fissionable materials.
Because shuffler-type instruments can be used for the non-destructive assay (NDA) of small amounts of both uranium and plutonium in a wide variety of forms and matrix materials, they are ideal for analyzing waste materials produced by facilities which handle fissile material and for safeguards accountability measurements. In addition, the design of the WM3210 system allows it to also be used for samples as large as spent fuel assemblies, where the presence of large amounts of activation products make gamma assay impractical.
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