Preparation device and preparation method for standard tritium gas

A technology of standard gas and tritium gas, which is applied in the direction of mixing methods, chemical instruments and methods, and the preparation of test samples, can solve the problems of difficult guarantee of stability, high activity of tritium gas source, and complicated preparation, so as to reduce radioactivity Activity loss, reduced radiation damage, reduced effects of direct exposure

Active Publication Date: 2017-10-20
CHINA INSTITUTE OF ATOMIC ENERGY
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The original tritium gas source generally has a high activity and cannot be directly used as a standard gas source for the calibration of tritium monitors. It needs to be diluted step by step
Tritium gas standard source is used as a standard mixed gas. Due to the isotope exchange and easy diffusion characteristics of tritium, the preparation is relatively complicated, and the stability is not easy to guarantee.
In addition, the production of original high specific activity tritium gas generally requires the use of reactors or accelerators, which are relatively complicated and costly

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
  • Preparation device and preparation method for standard tritium gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0037] The preparation device of exemplary tritium gas standard gas of the present invention is as figure 1 As shown, it includes methane feed gas cylinder 1, nitrogen feed gas cylinder 2, methane feed gas delivery pipeline 3, nitrogen feed gas delivery pipeline 4, primary dilution gas delivery pipeline 5, secondary dilution gas delivery pipeline 6, gas Conveying main pipeline 7, gas conveying bypass pipeline 8, pressure gauge 9, tritium luminous tube 10, metal sleeve 11, primary diluent gas 12 bottles, secondary diluent gas cylinder 13, dispensing gas cylinder 14, vacuum unit 15, Valve (including V1, V2, V3, V11-V14, V21-25, V31-36), side wall 16, thimble 17, filter core 18, bolts.

[0038] Methane raw gas cylinder 1, nitrogen raw gas cylinder 2, primary dilution gas cylinder 12, and secondary dilution gas cylinder 13 respective...

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 belongs to the technical field of standard gas preparation, and relates to a preparation device and a preparation method for standard tritium gas. The preparation device for standard tritium gas comprises a methane feed gas cylinder, a nitrogen feed gas cylinder, a methane feed gas supply pipeline, a nitrogen feed gas supply pipeline, a primary diluent gas supply pipeline, a secondary diluent gas supply pipeline, a gas supply main pipeline, a gas supply bypass pipeline, a pressure meter, a tritium luminescent tube, a metal sleeve, a primary diluent gas cylinder, a secondary diluent gas cylinder, separate loading cylinders, a vacuum unit, and valves. By utilizing the preparation device and the preparation method for standard tritium gas disclosed by the invention, on the basis of more accurately preparing standard tritium gas, tritium radioactivity loss, outward leakage and radiation hazard to workers in the process of preparation are reduced, and the safety of standard tritium gas preparation is enhanced.

Description

technical field [0001] The invention belongs to the technical field of standard gas preparation, and relates to a preparation device and a preparation method of tritium gas standard gas. Background technique [0002] Tritium is a radioactive isotope of hydrogen, a pure beta emitter with a maximum decay energy of 18.6keV and a half-life of 12.35a. Online measurement of tritium concentration in tritium-related places is of great significance to the radiation safety of workers, workplace environment and the public. Due to the low-energy characteristics of the beta particles emitted by tritium, the detection method is complicated; there are various influencing factors in the measurement process of the real-time monitoring instrument of tritium in the air; the calibration error of the tritium monitor is relatively large at present, which together lead to the occurrence of tritium gas. Metrics cannot be obtained accurately. However, the primary factor to solve the problem of the...

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): B01F13/10B01F3/02G01N1/38B01F23/10
CPCG01N1/38B01F23/10B01F33/811B01F2101/23
Inventor 罗瑞徐利军叶宏生林敏张卫东
Owner CHINA INSTITUTE OF ATOMIC ENERGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap