Method and equipment for determining background of uranium hexafluoride gas uranium abundance measuring device

A technology of uranium hexafluoride and measuring devices, which is applied in measuring devices, radiation measurements, X/γ/cosmic radiation measurements, etc., and can solve problems such as complicated operations, large measurement errors, and inconsistent operating conditions

Active Publication Date: 2014-04-16
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is complicated to operate, takes a long time (at least 3 hours for each measurement), requires human intervention, has large measurement errors, and does

Method used

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  • Method and equipment for determining background of uranium hexafluoride gas uranium abundance measuring device
  • Method and equipment for determining background of uranium hexafluoride gas uranium abundance measuring device
  • Method and equipment for determining background of uranium hexafluoride gas uranium abundance measuring device

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Embodiment Construction

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0035] figure 2 shows the determination of UF according to the present invention 6 Method 200 for Gas Uranium Abundance Measuring Device Background.

[0036] figure 2 Determining UF as shown 6 The method 200 for the background of a gas uranium abundance measuring device includes the following steps: flow step S201, which makes the same UF 6 The gas flows into or out of the measuring container of the gas uranium abunda...

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Abstract

The invention provides a method and equipment for determining the background of a uranium hexafluoride gas uranium abundance measuring device. The method includes the flow step, the sealing step, the measurement step and the calculation step. In the flow step, UF6 gas of the same kind is made to flow into or flow out of a measuring container. In the sealing step, the measuring container is sealed, and then the UF6 gas in the measuring container is made to stop flowing. In the measurement step, after the pressure of the UF6 gas in the measuring container is steady, the gamma ray section of interest gross-count rate value, the pressure value and the temperature value of the UF6 gas are measured. In the calculation step, under the condition that the flow step, the sealing step and the measurement step are repeatedly executed for n times to acquire n gamma ray section of interest gross-count rate values, n pressure values and n temperature values, and the gamma ray section of interest background counting rate value of the UF6 gas uranium abundance measuring device is calculated by the utilization of the measured n gamma ray section of interest gross-count rate values, the measured n pressure values and the measured n temperature values, wherein n is an integer which is larger than or equal to 2.

Description

technical field [0001] The invention relates to a device for measuring the uranium abundance of uranium hexafluoride gas, in particular to a method and equipment for determining the background of the device for measuring the uranium abundance of uranium hexafluoride gas. Background technique [0002] A uranium enrichment plant is a nuclear facility that conducts uranium enrichment activities, and is one of the key objects of arms control inspection and safeguard supervision. Uranium enrichment plants use mass spectrometers to monitor UF in pipelines 6 (Uranium hexafluoride) gas in uranium ( 235 U) Abundance, this technology has high precision, but the operation is complicated, the cost is high, the analysis cycle is long, and professionals are required. The online uranium enrichment technique consists of two parts: 235 Measurement of U amount and UF 6 Measurement of the total amount of uranium in a gas. 235 The measurement of the amount of U is determined by measuring t...

Claims

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Application Information

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IPC IPC(8): G01T1/00
Inventor 刘国荣吕学升赵永刚梁庆雷李井怀
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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