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Array solid probe for radiation detection

A radiation detection and detector technology, applied in the field of detectors, can solve the problems of high construction and maintenance costs, low detection efficiency of high-energy ionizing radiation, and no multi-column solid-state detectors, etc., and achieves convenient assembly and good reliability. Effect

Active Publication Date: 2009-12-16
TSINGHUA UNIV +1
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Problems solved by technology

Chinese patent 200520136585.6 discloses a multi-array detector module structure for radiation imaging, but the patent does not point out how to construct multi-row solid detectors
However, these detector structures designed for the detection of small objects are not suitable for the construction of radiation imaging detection of large objects, mainly because the detection efficiency of these detectors for high-energy ionizing radiation (such as pulsed X-rays generated by accelerators) is too low and too large. The fine pixel size makes it too expensive to build and maintain a large object detection pipeline

Method used

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  • Array solid probe for radiation detection
  • Array solid probe for radiation detection
  • Array solid probe for radiation detection

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Embodiment Construction

[0033] figure 2 is a schematic diagram of the detector of the radiation detection system of the present invention, wherein the detector is a multi-row solid-state detector including a plurality of scintillators and a plurality of photodiodes. Such as figure 2 As shown, the array solid-state detector for radiation detection according to the present invention includes: a plurality of scintillators 201 that receive radiation radiated in a predetermined direction (for example, the radiation irradiation direction 205) and convert the radiation into visible light, and a plurality of photoelectric Diode 202 , the plurality of photodiodes are respectively coupled to the plurality of scintillators through coupling surfaces, so that visible light enters the photodiode 202 and converts the visible light into charge signals. The coupling surface is substantially perpendicular to the predetermined direction. That is, the coupling surface of the photodiode 202 and the scintillator 201 i...

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Abstract

The invention relates to an array solid probe for radiation detection, comprising a plurality of sensors for detecting rays radiated along a preset direction. Each sensor is provided with a ray incidence end surface and a plurality of first plates almost arranged in parallel to form at least one row space; the sensors are aligned in the space, and the first plates are made of metal. The structural mode can be used for constructing various columns of array solid probes, thereby improving the radiation detection speed of large objects under the condition that the special resolution and the contrast sensitivity of scanned images are not considered.

Description

technical field [0001] The present invention relates to detectors for radiation detection (eg, radiation imaging systems), and more particularly to arrayed solid-state detectors for radiation detection of large objects. Background technique [0002] In a radiation imaging system, the function of the array detector is to convert the X-ray or γ-ray signal transmitted through the detected object into an electrical signal. In the radiation imaging system of a large object, a single-column detector array is generally used, including ionization chamber-type gas detectors and scintillator-type solid-state detectors. In Chinese patents 02148670.0 and 200420009319.2, the applicant disclosed two radiation imaging solid-state detector technologies. The solid-state detector arrays using these patented technologies have been widely used in X-ray container scanning systems. The multi-column detector array is proposed to meet the requirements of increasing the scanning speed of radiation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/20G01T1/24A61B6/00
CPCG01T1/2928
Inventor 赵书清李元景代主得江年铭张清军姚楠
Owner TSINGHUA UNIV
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