Systems and methods for in-situ calibration of scintillation spectrometer
| DWPI Title: System for identifying presence of gamma radiation sources proximal to radiation spectrometer, has hardware logic component outputing spectral data based on electrical signal, LED lamp for producing LED peak in spectral data |
| Abstract: A radiation spectrometer includes a scintillator, a photomultiplier, and one or more light-emitting diodes (LEDs). The scintillator receives radiation from the environment and emits light that is indicative of an energy of the radiation. The photomultiplier receives the light and outputs an electrical signal that is in turn indicative of the energy of the radiation. Spectral data can be generated based upon the electrical signal, wherein the spectral data indicates a number of radiation events in each of several energy bins. The one or more LEDs can emit LED light through the scintillator and toward the photomultiplier, wherein the LED light causes an LED peak in the spectral data that can be used to identify an absolute energy of radiation events in the spectral data. |
| Use: System for identifying presence of gamma radiation sources proximal to a radiation spectrometer such as scintillator, a photomultiplier, and one or more light-emitting diodes (LEDs) and hardware logic component based on scintillation caused by impingement of gamma rays on a crystal. |
| Advantage: The system transports spectrometer by air with environmental and safety regulations without requiring radioactive calibration sources to function, out[uts spectral data indicating absolute energy of radiation that impinges on the spectrum during a collection period without use of a radioactive calibration source. |
| Novelty: The system (100) has a scintillator (102) for emitting light responsive to radiation. A photomultiplier (104) is coupled to the scintillator for receiving light and outputs an electrical signal. A hardware logic component outputs spectral data based on the electrical signal. A LED lamp (118) produces an LED peak in the spectral data. The logic component outputs subsequent spectral data based on position of the LED peak. |
| Filed: 11/3/2021 |
| Application Number: US17518166A |
| Tech ID: SD 15087.0 |
| 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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