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Device and method for gamma-ray energy spectrum counting measurement

A γ-ray and energy spectrum technology, applied in the field of γ-ray energy spectrum measurement, can solve the problem of high cost and achieve the effect of increasing the count rate

Pending Publication Date: 2021-05-11
BEIJING EXPLORE TIMESTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Disadvantages, high cost

Method used

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  • Device and method for gamma-ray energy spectrum counting measurement
  • Device and method for gamma-ray energy spectrum counting measurement

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Embodiment Construction

[0040] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0041] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a device and a method for gamma-ray energy spectrum counting measurement, and belongs to the technical field of gamma-ray energy spectrum measurement. The device comprises an amplification circuit, a plurality of measurement branches, a logic control circuit and a storage circuit, wherein the amplification circuit receives a gamma ray energy signal and converts the gamma ray energy signal into an analog signal; the measurement branches receive the analog signal, send conversion start signals to the logic control circuit, search analog signal peak positions, maintain the level of the peak positions, convert the level into digital signals and output the digital signals; the logic control circuit is used for receiving the conversion start signals, sending the conversion start signals to delay preset time, closing a measurement branch and opening the next measurement branch; and the storage circuit is used for receiving the digital signals and determining the counting value of the gamma-ray energy spectrum according to the received digital signals output by the plurality of measurement branches. According to the invention, the counting rate of the gamma-ray energy spectrum is greatly improved, and the restriction of the counting rate is mainly restricted by the attenuation time of a scintillator.

Description

technical field [0001] The present invention relates to the technical field of gamma ray energy spectrum measurement, and more particularly, relates to a device and method for gamma ray energy spectrum counting measurement. Background technique [0002] Cerium-doped lanthanum bromide (LaBr3:Ce) scintillation crystal is currently the most popular new inorganic scintillation crystal material in international research and application, with high light output (greater than 60000Ph / MeV), short decay time (less than 30ns), and high energy resolution (less than 4%) and other excellent characteristics. The ideal maximum counting rate is close to 3X107cps; [0003] A general lanthanum bromide X(γ) spectrometer consists of an amplifier circuit 1, a linear gate 2, a discriminator 3, a logic control circuit 4, a peak holding circuit 5, an analog-to-digital conversion circuit 6, and a storage circuit 7. [0004] The conversion time (Tt) of the above-mentioned spectrometer is composed of...

Claims

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Application Information

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IPC IPC(8): G01T1/36
CPCG01T1/362
Inventor 李高峰
Owner BEIJING EXPLORE TIMESTECH CO LTD
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