Neutron gamma-ray detecting device

A gamma ray and detection device technology, applied in the detection field, can solve the problems of restricted application, high price, and difficulty in large-area detectors, etc., and achieve the effects of improving neutron detection efficiency, high neutron detection efficiency, and easy signal discrimination.

Inactive Publication Date: 2008-12-24
TSINGHUA UNIV
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Problems solved by technology

However, these detectors have complicated process and technology, are not easy to make large-area detectors, have many supp

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  • Neutron gamma-ray detecting device
  • Neutron gamma-ray detecting device
  • Neutron gamma-ray detecting device

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Embodiment Construction

[0025] The invention provides a neutron gamma ray detection device capable of simultaneously detecting and monitoring neutrons and / or gamma (X-rays) in the environment. The present invention will be described below in conjunction with the accompanying drawings. The gamma rays mentioned below refer to gamma rays and X-rays.

[0026] figure 1 Shown is a schematic diagram of the basic structure of the detector, a. front view, b. side view.

[0027] The detector uses a conventional plastic scintillator or inorganic crystal 1 to detect gamma rays in the environment; a layer of neutron absorber 2 is placed on the surface of the plastic scintillator or inorganic crystal to detect neutrons; the detector works alone The neutron detector can be used alone as a gamma detector; or it can be used as a detector for both neutron and gamma detection. The above-mentioned neutron absorber is gadolinium oxide, naturally abundant gadolinium or a gadolinium-containing material enriched with gad...

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Abstract

The invention discloses a neutron-gamma ray detection device which belongs to the detection technology field. The detector adopts a conventional plastic scintillator or an inorganic crystal to detect gamma rays in the environment and adopts a layer of neutron absorber on the surface of the plastic scintillator or the inorganic crystal to detect neutrons; the detector can be separately used as a neutron detector or be separately used as the gamma detector or be used as the detector for simultaneously detecting the neutrons and the gamma. The neutron-gamma ray detection device can simultaneously detect and monitor the neutrons and/or gamma (X rays) in the environment and the gamma detector can be used as a moderator of the neutron detector, thereby greatly improving the neutron detection efficiency. Working substances of the whole detector are all solids, thereby facilitating the production, the installation, the transportation and the long-term outdoor works.

Description

technical field [0001] The invention belongs to the technical field of detection, in particular to a neutron-gamma-ray detection device capable of simultaneously detecting and monitoring neutrons and / or gamma (X-rays) in the environment. Specifically, this device has a one-dimensional or two-dimensional Position resolution ability, good time resolution ability and high precision position resolution ability. Background technique [0002] At present, in the fields of proton imaging, neutron imaging and γ (X) ray imaging, detector systems made of media such as scintillators or semiconductors are generally used to detect ray particles. Some of these detectors have a position resolution that can reach microns level, and the detection efficiency is also high. However, these detectors have complex process and technology, are not easy to make large-area detectors, have many supporting electronics circuits, and are expensive, all of which restrict their application in large-area are...

Claims

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Application Information

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IPC IPC(8): G01T3/06
Inventor 岳骞李元景
Owner TSINGHUA UNIV
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