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Ultrafast gamma ray energy spectrum measuring instrument based on scintillating-fiber array

An energy spectrum measuring instrument and scintillation optical fiber technology, which is applied in the field of gamma-ray energy spectrum detection, can solve the problems of low precision and inability to measure gamma light, etc., and achieve the effect of less instrument components, flexible use, and high detection accuracy

Inactive Publication Date: 2015-06-24
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

This method can measure the energy spectrum of 3-20MeV, but cannot measure gamma light in the lower energy range, and the accuracy is lower, 1MeV

Method used

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  • Ultrafast gamma ray energy spectrum measuring instrument based on scintillating-fiber array
  • Ultrafast gamma ray energy spectrum measuring instrument based on scintillating-fiber array
  • Ultrafast gamma ray energy spectrum measuring instrument based on scintillating-fiber array

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0020] see first figure 1 , figure 1 It is an ultrafast gamma ray energy spectrometry instrument based on a scintillation fiber array of the present invention. As can be seen from the figure, an ultrafast gamma ray energy spectrum measurement instrument based on a scintillation fiber array includes a scintillation fiber array 1, a detector array 2, Analyzer3. Its positional relationship is: along the incident direction of ultrafast gamma rays, passing through the scintillation optical fiber array 1, incident on the detector array 2, between the detector array 2 and the analyzer 3 Electrical connection between. The scintillation fiber array 1 converts gamma rays into visible light and guides the transmission of light, the detector array 2 converts visible light into elect...

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Abstract

The invention discloses an ultrafast gamma ray energy spectrum measuring instrument based on a scintillating-fiber array. The ultrafast gamma ray energy spectrum measuring instrument comprises the scintillating-fiber array and a detector array which are arranged sequentially along the incidence direction of an ultrafast gamma ray, and the output end of the detector array is connected with the input end of the scintillating-fiber array. According to the ultrafast gamma ray energy spectrum measuring instrument based on a scintillating-fiber array, a detecting channel of the separated ultrafast gamma rays is formed by each scintillating-fiber and the corresponding detector of the scintillating-fiber and the crosstalk problem of the photon in the detector is avoided; the ultrafast gamma ray energy spectrum measuring instrument has the advantages that the detecting accuracy is high, the structure is simple and compact, and the use is flexible.

Description

technical field [0001] The invention relates to the energy spectrum detection of gamma ray, especially the energy spectrum detection of ultrafast gamma ray driven by strong field laser. technical background [0002] The detection of gamma rays is generally based on the detection of secondary electrons generated during the interaction process between gamma rays and matter (photoelectric effect, Compton scattering, electron pair generation, etc.). [0003] Advanced technology [1] (see Zhang Jianxiong, Zhang Jin, Yao Honglue. A portable natural gamma energy spectrum measuring instrument and its principle of spectrum stabilization [J]. Nuclear Technology, 2005,28(8):637-640) using scintillation The detector measures the gamma spectrum. Its working principle is as follows: the ray enters the scintillator and interacts with the scintillator to ionize and excite the atoms and molecules of the scintillator; The form is released to form a flash; part of the flash light is collected...

Claims

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Application Information

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IPC IPC(8): G01T1/36
Inventor 曾爱军陈立群沈百飞齐红基黄惠杰
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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