Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

TIMS measuring method for oxygen isotopes

A technology of oxygen isotopes and measurement methods, which is applied in the direction of measuring devices, material analysis by electromagnetic means, instruments, etc., can solve the problems of lack of research and optimization, small sample consumption, etc., and achieve fast measurement speed, small sample consumption, The effect of high measurement accuracy

Inactive Publication Date: 2014-08-13
CHINA INSTITUTE OF ATOMIC ENERGY
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the existing technology often does not have the advantages of small sample amount, simple chemical treatment and measurement process when measuring oxygen isotopes by gas mass spectrometry, and does not have the advantages of selection of carrier agent, research on sample coating technology and other measurement conditions. Research and optimization, the advantages of developing a method for rapid and accurate measurement of oxygen isotopes in uranium oxides

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • TIMS measuring method for oxygen isotopes
  • TIMS measuring method for oxygen isotopes
  • TIMS measuring method for oxygen isotopes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0044] Collect samples, measure samples on a common sample strip by a TIMS mass spectrometer, evaporate said sample on said common sample strip, due to UO + The ionization temperature of ions is lower than O - The ionization temperature, so choose the UO + As receiving, measuring ions, and making the UO at the proper temperature + Ionization out one 238 u 18 o + and one 238 u 16 o + two ions, using a receiver to receive the 238 u 18 o + ion and the 238 u 16 o + ions, and perform data acquisition on them, and finally get 18 O / 16 O ratio, so as to analyze the oxygen isotope ratio in uranium oxide.

[0045] see figure 1 As shown, it is a measurement process frame diagram of an oxygen isotope TIMS measurement method of the present invention, and the method comprises the following steps:

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a TIMS measuring method for oxygen isotopes. The method comprises the following steps: S1, treatment of a sample; S2, processing of a boat-type tape; S3, pretreatment of the boat-type tape; S4, sample preparation; S5, sample coating; S6, observation of sample coating effects; S7, cleaning of a sample room and a flight-path tube; S8, sample filling; S9, selection and arrangement of receivers; S10, adjustment of evaporation and ionization temperatures; S11, optimization of optical parameters; S12, data acquisition; and S13, correction and uncertainty calculation of a measured value obtained in the step S12. The TIMS measuring method for oxygen isotopes has the characteristics of simple sample preparation, a small usage amount of the sample, accurate measurement, high measurement precision, a fast measurement speed, etc.

Description

technical field [0001] The invention relates to the technical field of isotope measurement, in particular to an oxygen isotope TIMS measurement method. Background technique [0002] With the development of international nuclear non-proliferation, anti-nuclear terrorism and nuclear safeguards, nuclear security has become a focus of attention of the international community. In 2010 and 2012, nuclear security summits were held, which mainly discussed nuclear security issues such as international nuclear non-proliferation and anti-nuclear terrorism. As a method of diagnostic analysis of nuclear material information characteristics—nuclear forensics has been paid more and more attention by governments and social groups in various countries. In the early 1990s, cases of illegal trade in nuclear materials were reported. It is mainly due to the confusion in the management of nuclear materials after the disintegration of the former Soviet Union, which led to the loss and illegal tr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62
Inventor 王同兴张生栋赵永刚张燕姜小燕王晓明鹿捷
Owner CHINA INSTITUTE OF ATOMIC ENERGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com