Superconducting magnet system for providing high-intensity magnetic field for X ray total-scattering apparatus

Abstract

The invention provides a superconducting magnet system for providing a high-intensity magnetic field for an X ray total-scattering apparatus. The superconducting magnet system comprises a superconducting magnet part and a lower temperature system part, wherein the superconducting magnet part is combined by multiple pairs of separated superconducting coils; the skeleton of the superconducting coil pair is combined by two groups of detachable structures; a space for mounting a 80 degrees +80 degrees perpendicular wide angle room temperature optical window and a horizontal room temperature aperture for inserting a test sample are mounted in the middle of the skeleton; the superconducting magnet system can run at a temperature of 4.5K liquid helium temperature and can provide 0-10T adjustable central magnetic field intensity. The superconducting magnet system provided by the invention has the advantages of long-term closed loop operation, low operation cost, compact structure, stability, reliability, capability of realizing zero evaporation of liquid helium and the like.

Description

technical field [0001] The invention relates to a superconducting magnet system that provides strong magnetic field conditions for an X-ray total scattering device, in particular a multi-pair NbTi / Cu and Nb magnet system with a wide-angle optical window 3 A superconducting magnet system with a central magnetic field strength of 10T composed of Sn superconducting coils. Background technique [0002] Materials science and condensed matter physics under strong magnetic fields are one of the important research fields of natural science. The energy (~meV) provided by a strong magnetic field above 10T is equivalent to the energy level of the crystal field energy, exchange energy, and various element excitations in the material, and the corresponding magnetic length (magneticlength~100?) is equivalent to the average free electrons in the material. The "size" of features such as range, magnetic correlation length, and superconducting coherence length is equivalent, so it can have a...

AI Technical Summary

Problems solved by technology

At present, the central magnetic field strength provided by the superconducting magnet system applied to the X-ray total scattering device under the strong magnetic field developed abroad is mostly in the range of 0-5T. The domestic research on this is still blank and still in the process of research and development.

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