Superconducting undulator magnet

Abstract

The invention relates to a superconducting undulator magnet which comprises two columns of superconducting coil arrays longitudinally arranged at intervals and in parallel. Each column of superconducting coil arrays comprise a coil skeleton with high magnetic conductivity, n+1 magnetic poles which are axially arranged on the coil skeleton with the high magnetic conductivity at intervals, and n groups of coils which are formed by winding a single superconducting wire on the surface of the coil skeleton with the high magnetic conductivity and are positioned every two adjacent magnetic poles, and a direct-current power supply used for supplying the power to the coils, wherein the n represents a natural number; and the leading-in direction and the leading-out direction of the single superconducting wire during a winding process are arranged in a manner of enabling the directions of magnetic fields generated by the two adjacent coils to be opposite. The n groups of coils in each column of superconducting coil arrays are formed by winding the single superconducting wire, so that the running resistance of the n groups of coils is lowered. Thus, the cooling cost is effectively lowered while the running stability is improved at the same time. In addition, the magnetic induction intensity generated by the superconducting undulator magnet can be changed by regulating currents conducted into the coils.

Description

technical field [0001] The invention relates to a superconducting undulator magnet. Background technique [0002] An undulator is a device that generates a periodic magnetic field, and is a core component in synchrotron radiation devices and free electron laser devices. When the electron beam passes through the periodic magnetic field generated by the undulator, the emitted X-rays interfere to obtain quasi-monochromatic light with high brightness. [0003] At present, the synchrotron radiation light source mainly uses a rare earth permanent magnet undulator at room temperature, and its main limitations are: the magnetic induction intensity it can achieve is low, and the adjustment of the magnetic induction intensity is troublesome. The reason for the above limitation is that the rare earth permanent magnet undulator at room temperature is limited by the maximum remanence that the rare earth permanent magnet material itself can achieve, and the magnetic field strength has re...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems in the prior art, the present invention aims to provide a superconducting undulator magnet to overcome the inflexible adjustment of the magnetic induction intensity of the existing room temperature rare earth permanent magnet undulator and the inflexibility of the existing superconducting undulator magnet. There are shortcomings of superconducting joints, to achieve the purpose of flexibly adjusting the magnetic induction intensity, reducing operating costs, and avoiding the use of superconducting joints to reduce operating resistance

Images