Cooling slow release structure for crystals based on special-shaped groove

Abstract

The invention relates to a cooling slow release structure for crystals based on a special-shaped groove. The structure comprises a diffraction crystal and a base crystal; wherein the special-shaped slow release groove is opened on the diffraction crystal, and the back side of the diffraction crystal is a diffraction surface with a precise surface shape; an unload groove, a water inlet, a water outlet and a water tank are opened on the base crystal; the water inlet is communicated with the water outlet through the water tank and the special-shaped slow release groove of the diffraction crystal; and the diffraction crystal and the base crystal are welded into a combination crystal through high-temperature diffusion. The structure has the advantages that the cooling efficiency is high, the sealing performance is good, the clamping stress deformation is small, the surface shape error caused by the pressure difference in and out of a cooling cavity is small, and the processing technique is good.

Description

technical field [0001] The invention belongs to the field of machinery and relates to a crystal thermal slow-release structure, in particular to a crystal thermal slow-release structure based on a special-shaped groove. Background technique [0002] The monochromator is one of the most important equipment in the entire synchrotron radiation source. The wavelength, energy resolution, beam spot size, and position of the monochromatic light required by the experimental station are all realized or mainly determined by the monochromator. The spectroscopic result determines the final success or failure of the experimental station, and the spectroscopic element is extremely sensitive to high thermal load, and the lower power density will cause a very large deformation of the spectroscopic element, especially the first diffraction crystal of the monochromator spectroscopic element is subjected to The energy of X-rays greater than 99% increases the temperature of the crystal surface ...

AI Technical Summary

Problems solved by technology

In the direct water cooling method, the diffractive crystal can be directly clamped with the support structure, sealed with a sealing ring in the middle, the water inlet is set on the support structure, and the cooling water flows into the cooling channel of the diffractive crystal through the support structure for cooling; also The grooved crystal can be divided into a diffractive part and a base part, and after the cooling channel of the diffractive part is processed, the two crystals are bonded together with adhesive glue; on the crystal cooling channel, the more common ones are the flat plate geometry and the round hole geometry. And the rectangular hole geometry, the round hole cooling channel has a smaller heat transfer area, but compared with the flat plate geometry, the cooling effective transfer area increases by 57%, while the rectangular cooling channel increases by 5 times compared to the flat plate geometry, but the three The cooling geometry has certain limitations, that is, the cooling performance is not high

In addition, the direct cooling method requires large-scale sealing at the junction, and the uniformity of the clamping torque is not easy to control, which is likely to cause additional stress on the crystal structure, thereby increasing the surface deformation error of the crystal

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