Method and apparatus for neutron dosimetry
US4804514A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1986 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Dec 9, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T3/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and apparatus for measuring a neutron flux in which the neutrons induce fission reactions in the layer of fissile material, the fission reactions in turn inducing light pulses in a scintillator material. A photomultiplier tube detects the light pulses and emits an electrical pulse in response. The electrical pulses are summed, checked for coincidence, stored, and otherwise manipulated in order to detect and measure neutron flux. In one advantageous embodiment of the invention, several different fissile materials or coated and uncoated fissile materials are used in order to obtain a spectral distribution of the incident neutron flux. At another embodiment, opposed detectors are used in order to discriminate between actual neutron-induced fission events and background events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.