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Air absorption dose rate measurement method based on pulse height spectrum

A technology of pulse height and absorbed dose, applied in the field of nuclear radiation detection, can solve problems such as complex function calculation, and achieve the effect of saving labor calculation costs

Active Publication Date: 2018-06-12
NAT INST OF METROLOGY CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using semiconductor gamma energy spectroscopy to measure air absorbed dose rate has the advantages of accurate and efficient measurement, but it involves a large number of complex function calculations

Method used

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  • Air absorption dose rate measurement method based on pulse height spectrum
  • Air absorption dose rate measurement method based on pulse height spectrum
  • Air absorption dose rate measurement method based on pulse height spectrum

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Embodiment Construction

[0035] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0036] Embodiment 1 of the present invention provides a method for measuring air absorbed dose rate based on pulse height spectrum, figure 1 It is a flow chart of the method for measuring air absorbed dose rate based on pulse height spectrum provided in Example 1 of the present invention.

[0037] The following combination figure 1 As shown, the method for measuring the air absorbed dose rate based on the pulse height spectrum provided in Embodiment 1 of the present invention will be described.

[0038] The air absorbed dose rate measurement method based on the pulse height spectrum provided by Embodiment 1 of the present invention comprises the following steps:

[0039] Step 110, the terminal device receives the first operation instruction input by the user, and acquires the pulse height spectrum information and the...

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Abstract

The embodiment of the invention relates to an air absorption dose rate measurement method based on pulse height spectrum. The method comprises the steps that a terminal device receives a first operation instruction; pulse height spectrum information and background spectrum information are acquired and analyzed, and fluence spectrum data and background fluence spectrum data are generated; the fluence spectrum data comprise track number data and first count data; the background fluence spectrum data comprise second count data; parameter information is acquired, and the parameter information comprises pulse height spectrum measurement time, background pulse height spectrum measurement time, energy slope data, energy slant range data and fluence spectrum dose conversion coefficients; energy data are acquired according to the energy slope data, the energy slant range data and the track number data; first count rate is acquired according to the first count data and the pulse height spectrummeasurement time; second count rate is acquired according to the second count data and the background pulse height spectrum measurement time; and according to the energy data, the first count rate, the second count rate and the fluence spectrum dose conversion coefficients, the air absorption dose rate is acquired.

Description

technical field [0001] The invention relates to the technical field of nuclear radiation detection, in particular to a method for measuring air absorbed dose rate based on pulse height spectrum. Background technique [0002] Absorbed dose refers to the energy absorbed by a unit mass of material after being irradiated. Absorbed dose rate refers to the absorbed dose per unit time. Air absorbed dose rate is an important indicator for evaluating the level of ionizing radiation. Radiation dose exposure has important reference value. [0003] Current methods of measuring air absorbed dose rate include direct measurement with dosimeters using ionization chambers, scintillators, or semiconductor probes. Using semiconductor gamma energy spectroscopy to measure air absorbed dose rate has the advantages of accurate and efficient measurement, but it involves a lot of complicated function calculations. Contents of the invention [0004] The purpose of the present invention is to prov...

Claims

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Application Information

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IPC IPC(8): G01T1/02G01T1/167
CPCG01T1/02G01T1/167
Inventor 李德红王晨毅黄建微周青芝吴琦郝艳梅
Owner NAT INST OF METROLOGY CHINA
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