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Matrix radiation dose detector

A radiation dose and detector technology, applied in the field of nuclear radiation monitoring, can solve problems such as poor control of irradiation field dose distribution and tumor tissue damage, and achieve the effect of assisting nuclear medicine in precise treatment and high detection accuracy

Pending Publication Date: 2022-03-18
黑龙江省原子能研究院
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Problems solved by technology

Although the early common radiotherapy technology can treat most tumors, it also causes great damage to the normal tissues around the tumor, and it is difficult to control the dose distribution of the irradiation field.

Method used

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] The embodiment of the present invention discloses a matrix type radiation dose detector, such as figure 1 As shown, including: detection module and back-end processing module;

[0055] The detection module is used to receive γ-rays to generate corresponding photocurrent signals, including N×M probe units a, such as figure 2As shown, each probe unit a includes a pre-collimator a1, a high-precision CsI scintillator a2, and a photomultiplier tube a3 inst...

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Abstract

The invention discloses a matrix radiation dose detector. The matrix radiation dose detector comprises a detection module and a rear-end processing module, the detection module is used for receiving gamma rays to generate corresponding photocurrent signals and comprises N * M probe units, and each probe unit comprises a front collimator, a high-precision CsI scintillator and a photomultiplier which are sequentially installed from top to bottom; the probe units are arranged in an N * M matrix mode, and N and M are positive integers larger than 1; the rear-end processing module comprises a single-channel pulse amplitude analyzer, an FPGA (Field Programmable Gate Array) and an MCU (Microprogrammed Control Unit); each photomultiplier is correspondingly connected with one single-channel pulse amplitude analyzer, all the single-channel pulse amplitude analyzers are electrically connected with the FPGA, and the FPGA is electrically connected with the MCU; according to the invention, specific organs of a patient receiving internal radiotherapy treatment can be effectively scanned.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation monitoring, in particular to a matrix type radiation dose detector. Background technique [0002] In recent years, with the continuous development of related technologies in the field of nuclear medicine, radiotherapy has gradually become one of the commonly used methods for clinical treatment of malignant tumors. According to statistics, about 1.8 million new people suffer from tumor diseases each year in my country, and a total of 1.3 million malignant tumor patients need to receive radiotherapy. Although the early common radiotherapy technology can treat most tumors, it also causes great damage to the normal tissues around the tumor, and it is difficult to control the dose distribution of the irradiation field. As an emerging radiotherapy method, internal radiotherapy technology has the advantages of high targeting, remarkable therapeutic effect and good persistence. Internal radiot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1001A61N5/103A61N5/1048A61N5/1071A61N2005/1092
Inventor 李岩李钢杨斌赵弘韬赵孝文杨大战闫海霞周冬亮
Owner 黑龙江省原子能研究院
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