Temperature control device and method for energy dispersive x-ray fluorescence spectrometer

Abstract

The invention relates to a temperature control device of an energy dispersion X-ray fluorescence spectrophotometer. The temperature control device comprises a heating module, a heat conduction structure, a refrigerator, a radiator, a temperature sensor and a control module, wherein the heat conduction structure is connected with the heating module and the refrigerator; the refrigerator refrigerates the heat conduction structure and the heating module; the radiator is connected with the refrigerator; the temperature sensor comprises an environment temperature sensor and a heating module temperature sensor; the controller is connected with the heating module, the environment temperature sensor, the heating module temperature sensor, the radiator and the refrigerator. The invention further provides a temperature control method of the energy dispersion X-ray fluorescence spectrophotometer. The temperature control device of the energy dispersion X-ray fluorescence spectrophotometer has the advantages of being simple in structure, accurate in temperature control, high in applicability, stable in performance and the like.

Description

technical field [0001] The invention relates to the field of X-ray fluorescence analysis, in particular to a device and method for dynamically controlling the temperature of an energy-dispersive X-ray fluorescence spectrometer according to the ambient temperature. Background technique [0002] Energy dispersive X-ray fluorescence spectrometer is an instrument for qualitative and quantitative analysis of elements by exciting the characteristic X-rays of the substance to be measured through an excitation source, and detecting the energy and corresponding intensity of the characteristic X-rays with a detector. Commonly used excitation sources include X-ray tubes, radionuclides, synchrotron radiation sources, and proton excitation sources. Among them, X-ray tubes are widely used because of their safety and adjustability. [0003] The power of the X-ray tube generally ranges from a few watts to hundreds of watts. The power is not high, and each excitation will not generate excess...

AI Technical Summary

Problems solved by technology

Although the power of the X-ray tube is small, it is excited for a long time and only adopts natural heat dissipation or air-cooled heat dissipation, so that the heat cannot be dissipated in time, there is a greater risk in the instrument, and the performance of the X-ray tube is deteriorated

[0006] 2. It cannot meet the heat dissipation requirements of the detector

However, heat is also generated during the cooling process of the TEC, which causes the temperature of the detector shell and the surrounding environment to rise, and the cooling capacity of the TEC is limited. After the external temperature rises to a certain temperature, the internal TEC will not be able to continue to maintain the set cooling temperature, resulting in detection poor performance, unstable

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