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Faraday cup receiver and receiving method thereof

A Faraday cup and receiver technology, applied in the parts of the particle separator tube, etc., can solve the problems of difficulty in ensuring the consistency of receiving efficiency, shielding stray ion interference, poor secondary electron escape effect, etc. The effect of electron escape, shielding stray ion interference, shielding secondary electron escape

Pending Publication Date: 2021-04-20
BEIJING RES INST OF URANIUM GEOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a Faraday cup receiver and its receiving method, which is used to solve the technical problems that the existing Faraday cup receiver shields stray ion interference, has poor secondary electron escape effect, and is difficult to guarantee the consistency of receiving efficiency.

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  • Faraday cup receiver and receiving method thereof
  • Faraday cup receiver and receiving method thereof
  • Faraday cup receiver and receiving method thereof

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Embodiment Construction

[0051] The content of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments,

[0052] Such as Figures 1 to 6 As shown, a Faraday cup receiver includes: a shielding shell assembly 10, a suppressor assembly 20, a cup body assembly 30, and several mounting screws; The opening of the cup body inlet 321 on the assembly 30 is set facing, and the suppressor assembly 20 and the cup body assembly 30 are fixed inside the shielding shell assembly 10 .

[0053] The shielding shell assembly 10 includes: a shielding shell skeleton 11, a fixed shielding plate 12, a limiting slit 13, a shielding shell entrance 14, a detachable shielding plate 15, several nuts 16 and lead wire fixing grooves 17, the fixed shielding plate 12 Welded on the lower surface of the shielding shell skeleton 11; the overall shielding shell skeleton 11 is a "C"-shaped structure, and the opening end of the shielding shell skeleton 11 is provided wit...

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Abstract

The invention belongs to the technical field of isotope mass spectrometers, and particularly relates to a Faraday cup receiver and a receiving method thereof. The Faraday cup receiver comprises a shielding shell assembly, a suppression pole assembly, a cup body assembly and a plurality of mounting screws, wherein the suppression pole assembly and the cup body assembly are fixedly arranged in the shielding shell assembly. The Faraday cup receiver with the shielding shell and a suppression pole is simple to process, easy to guarantee assembling precision, capable of effectively shielding stray ion interference and secondary electron escape, and applicable as a detector of a multi-receiving isotope mass spectrometer.

Description

technical field [0001] The invention belongs to the technical field of isotope mass spectrometers, and in particular relates to a Faraday cup receiver and a receiving method thereof. Background technique [0002] The Faraday cup receiver is an important sensor of the mass spectrometer, which converts the ion flow moving in the vacuum into the electron flow in the conductor, and then realizes the measurement of the ion flow intensity. The multi-receiver isotope mass spectrometer uses receivers arranged in parallel to simultaneously measure the intensity of multiple beams of ion currents, thereby realizing the determination of isotope ratios. When measuring isotopes of high-mass elements, the distance between receivers is small, so the overall width of the receiver of a multi-receiving isotope mass spectrometer is narrow, generally less than 2.5mm. The multi-receiving isotope mass spectrometer uses the signal ratio between receivers as the final measurement result, and the co...

Claims

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Application Information

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IPC IPC(8): H01J49/02
Inventor 范增伟陈博涛刘宇昂刘桂方
Owner BEIJING RES INST OF URANIUM GEOLOGY