Neutron scatter camera
| DWPI Title: Camera for neutron scatter has pulse discrimination module which is in electrical communication with detector assemblies that are respectively disposed in first and second groups held separately as rigid structure |
| Abstract: An instrument that will directly image the fast fission neutrons from a special nuclear material source has been described. This instrument can improve the signal to background compared to non imaging neutron detection techniques by a factor given by ratio of the angular resolution window to 4π. In addition to being a neutron imager, this instrument will also be an excellent neutron spectrometer, and will be able to differentiate between different types of neutron sources (e.g. fission, alpha-n, cosmic ray, and D-D or D-T fusion). Moreover, the instrument is able to pinpoint the source location. |
| Use: Camera for visualizing presence and location of source of neutron radiation. |
| Advantage: Detects small amounts of fissile material and certain nuclear material such as plutonium or highly enriched weapons-grade uranium (HEU), also known as special nuclear material (SNM) which might be concealed within a bulk cargo container, railroad rail car, or a tractor trailer as smuggled contraband. Provides an image of the source of the fission neutrons and its location in space. |
| Novelty: The neutron scatter camera has a liquid scintillator cell , and a photomultiplier tube (PMT) coupled to rear face of liquid scintillator cell to provide a detector assembly. First and second detector assemblies are disposed in first and second groups and mounted to first and second struts interconnected to form respective rigid frames. The first and second groups are held at fixed separation distance relative to each other as rigid structure. A pulse discrimination module in electrical communication with detector assemblies. |
| Filed: 9/24/2008 |
| Application Number: US2008237251A |
| Tech ID: SD 10674.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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