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Multi-mass-to-charge-ratio ion beam mass spectrometry device and method

A mass spectrometry and ion beam technology, which is applied in the field of multi-mass-to-charge ratio ion beam mass spectrometry devices, can solve the problems of long resolution time, narrow application range, insufficient resolution ability of sample component proportion, etc., so as to solve the problem of too long analysis time , the effect of constraining flow time, improving effectiveness and accuracy

Active Publication Date: 2020-06-16
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
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Problems solved by technology

[0006] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a multi-mass-to-charge ratio ion beam mass spectrometry device and method to solve the problem that the resolution time of the current low-energy accelerator mass spectrometry device is too long and the sample component ratio resolution is insufficient. Narrow scope of application caused by factors such as

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Embodiment 1

[0023] This embodiment discloses a multi-mass-to-charge ratio ion beam mass spectrometry device. A multi-mass-to-charge ratio ion beam is defined as an ion beam containing ions with various mass-to-charge ratios. like figure 1 , 2 As shown, the mass spectrometry device includes: an ion source 1, a focusing module 2, a magnetic separation module 3, an acquisition module 4 and a data processing module 5; the ion source 1 is used to emit an ion beam containing ions of various mass-to-charge ratios; the focusing Module 2 is used to focus the ion beam; magnetic separation module 3 is used to separate ions with different mass-to-charge ratios in the focused ion beam along different curvature radii according to the magnetic stiffness; the acquisition module 4 is arranged in the magnetic separation module The ion beam imaging end of 3 is used to receive ions of different mass-to-charge ratios corresponding to each radius of curvature, and generate corresponding electrical signals; th...

Embodiment 2

[0032] Based on the same inventive concept, this embodiment also discloses a multi-mass-to-charge ratio ion beam mass spectrometry method, using any of the above-mentioned devices, including the following steps:

[0033] S1. Emitting ion beams containing ions with various mass-to-charge ratios, and focusing the ion beams;

[0034] S2. Separate the ions with different mass-to-charge ratios in the ion beam along different curvature radii according to the magnetic stiffness;

[0035] S3. Receive ions with different mass-to-charge ratios corresponding to each curvature radius, and generate corresponding electrical signals;

[0036] S4. Process the electrical signal through the data processing module 5, and determine the types and proportions of ions with different mass-to-charge ratios according to the radius of curvature and the electrical signal.

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Abstract

The invention relates to a multi-mass-to-charge-ratio ion beam mass spectrometry device and method. The multi-mass-to-charge-ratio ion beam mass spectrometry device comprises an ion source, a focusingmodule, a magnetic separation module, an acquisition module and a data processing module. The ion source is used for emitting an ion beam comprising ions with multiple mass-to-charge ratios; the focusing module is used for focusing the ion beam; the magnetic separation module is used for separating ions with different mass-to-charge ratios in the focused ion beam along different curvature radiuses according to the magnetic stiffness; the acquisition module is arranged at the ion beam imaging end of the magnetic separation module and is used for receiving the ions with different mass-to-chargeratios corresponding to the curvature radiuses and generating corresponding electric signals; and the data processing module is connected with the acquisition module, and is used for determining thetypes and proportions of ions with different mass-to-charge ratios according to the curvature radius and the electric signals generated by the acquisition module. The device solves the problems that in the prior art, the device is long in distinguishing time, and the application range is narrow due to the fact that the sample component proportion distinguishing capacity is insufficient.

Description

technical field [0001] The invention relates to a multi-mass-to-charge ratio ion beam mass spectrometry device and method, and belongs to the technical field of accelerators. Background technique [0002] Accelerator-based mass spectroscopic analysis (accelerator-based mass spectroscopic analysis) refers to a nuclear analysis method that combines accelerator and mass spectrometry. The mass-to-charge ratio characteristics of the ion beam are separated to identify the ion type and proportion of the sample. [0003] Accelerator mass spectrometry technology was produced in the 1970s. At the beginning of its development, it was mainly used for the rapid and accurate measurement of radioactive isotopes in earth science and archaeology. After more than half a century of development, accelerator mass spectrometry has been deeply used in many modern scientific and technological fields such as archaeology, biomedicine, geology, hydrology, cosmology, nuclear physics, etc., widely invo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J49/30H01J49/00
CPCH01J49/30H01J49/0086
Inventor 张金泉毛瑞士姚庆高蒙俊佘乾顺
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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