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Occlusion-based directionality and localization of radiation sources with modular detection systems and methods

A radiation source and detector technology, applied in the field of radiation source detection, can solve problems such as low output, increased cost, and reduced manufacturing efficiency

Pending Publication Date: 2021-11-05
FLIR DETECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in strong radiation fields, pulse pile-up reduces the detector's ability to accurately distinguish between gamma and neutron radiation
Additionally, such dual-mode detectors typically exhibit low yields during fabrication, which increases cost and reduces manufacturing efficiency

Method used

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  • Occlusion-based directionality and localization of radiation sources with modular detection systems and methods
  • Occlusion-based directionality and localization of radiation sources with modular detection systems and methods
  • Occlusion-based directionality and localization of radiation sources with modular detection systems and methods

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Embodiment Construction

[0020] According to various embodiments discussed herein, a detection system and associated method are provided to detect the direction and position of one or more radiation sources. For example, by providing multiple radiation detectors (e.g., gamma detectors) adjacent to each other, the detectors can be at least partially or completely shielded (e.g., shielded) from each other so that the detectors can respond to the same external radiation source Detect different radiation counts.

[0021] In this regard, when two gamma detectors are placed adjacent to each other, radiation can be determined within 180 degrees (e.g., left or right) in some embodiments and over a significantly smaller angular range as discussed further herein. The direction of the source. This is due to the absorption of radiation by the obscuring detector. The direction (e.g., angle or angle range).

[0022] Direction determination can be further enhanced by repositioning (eg, moving) the detection syst...

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Abstract

Various techniques are provided to detect the direction and location of one or more radiation sources. In one example, a system includes a plurality of radiation detectors configured to receive radiation from a radiation source. A first one of the radiation detectors is positioned to at least partially occlude a second one of the radiation detectors to attenuate the radiation received by the second radiation detector. The system also includes a processor configured to receive detection information provided by the first and second radiation detectors in response to the radiation, and determine a direction of the radiation source using the detection information. A modular system including gamma radiation detectors and neutron radiation detectors and related methods are also provided. In some cases, radiation source type may be determined in addition to or separate from radiation source direction.

Description

[0001] Cross References to Related Applications [0002] This application calls for a patent application entitled "OCCLUSION-BASED DIRECTIONALITY AND LOCALIZATION OFRADIATION SOURCES WITH MODULAR DETECTION SYSTEMS AND METHODS," filed November 13, 2018. Benefit and priority of U.S. Provisional Patent Application No. 62 / 760,146, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to the detection of radiation sources, and more particularly to the determination of the direction and position of such sources. Background technique [0004] Radiation detection systems are an important tool for detecting and intercepting nuclear threats. As such, they are often used to support homeland security, nuclear non-proliferation, and nuclear treaty verification. [0005] Some existing radiation detection systems are non-directional. In this regard, such systems can detect the presence of a radiation source, but may n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/29G01T3/00G01V5/00
CPCG01T1/2907G01T3/00G01V5/26G01T1/2008G01T1/208
Inventor K·达利F·J·梁W·T·米拉姆L·霍伊K·霍斯H·布兰斯S·W·弗利特伍德
Owner FLIR DETECTION
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