Spectral analysis method based on photon counting full spectrum direct reading

Abstract

The invention provides a spectral analysis method based on photon counting full spectrum direct reading. The spectral analysis method comprises the following steps of: generating a characteristic spectrum to be observed by a sample under the action of an excitation source; making multiplex light mingled with the characteristic spectrum incident into a light splitting system through an incident optical device; chromatically dispersing the incident multiplex light into a monochromatic spectral image by the light splitting system; imaging the spectral image on a sensitive face of a photon counting imaging detector; reconstructing the spectral image by the photon counting imaging detector in a digitalized manner through position sensitive detection and photon counting; and qualitatively and quantitatively analyzing the sample by an information processing and displaying unit according to the position of each pixel in the digital spectral image and signal intensity. The spectral analysis method provided by the invention has the advantages of low detection limit, high reading precision, high data stability, large linear dynamic range and the like, and can be used for realizing full spectrum direct reading, that is to say, a plurality of substance components can be analyzed at the same time, each spectral line in a working wavelength range can be fully utilized, the working speed is high, and corresponding instruments have the characteristics of simple structure, high operating stability, low production and operating cost, convenience for upgrading and debugging, and the like.

Description

technical field [0001] The invention relates to an innovative spectral analysis method, namely a "photon counting full-spectrum direct reading" spectral analysis method based on a "photon counting imaging detector". This method better solves the technical problem of "full-spectrum direct reading" and "detection sensitivity", "data stability", "reading accuracy" and "linear dynamic range". On the basis of "spectrum direct reading", the "detection sensitivity", "data stability", "reading accuracy" and "linear dynamic range" of spectral analysis have been improved. [0002] The technical field related to the invention includes the research of spectral analysis method, the application of spectral analysis technology, the manufacture of spectral analysis instrument and the like. Background technique [0003] Spectral analysis technology has the advantages of high sensitivity, good selectivity, convenient and fast operation, strong anti-interference ability and good accuracy. Ac...

AI Technical Summary

Problems solved by technology

This method better solves the technical problem that the traditional spectral analysis method cannot have both "full-spectrum direct reading" and "detection sensitivity", "data stability", "reading accuracy" and "linear dynamic range". , on the basis of realizing "full spectrum direct reading", the "detection sensitivity", "data stability", "reading accuracy" and "linear dynamic range" of the spectral analysis method are improved

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