Septum magnet and method for forming zero-magnetic field point in septum magnet

Abstract

The invention relates to a septum magnet and a method for forming a zero-magnetic field point in the septum magnet. The septum magnet comprises a pole head, a shaping circuit, a magnet yoke and a deflection circuit, wherein the pole head is used for generating a deflecting magnetic field, and an empty groove penetrating through the pole head is further formed in the surface of the pole head; the shaping circuit is arranged in the empty groove, is used for providing a shaping magnetic field in a space formed by the empty groove for shaping a leakage field of the deflecting magnetic field formedby the septum magnet in the empty groove, so that a quadrupole field is formed in the empty groove, and the magnetic center of the quadrupole field is the zero-magnetic field point; the magnet yoke is connected with two ends of the pole head, and an empty space is formed by enclosing the magnet yoke and the pole head; and the deflection circuit is arranged in the empty space and used for formingthe deflecting magnetic field in the empty space.

Description

technical field [0001] The invention relates to the field of cutting magnets, in particular to a cutting magnet and a method for forming a zero magnetic field point in the cutting magnet. Background technique [0002] With the rapid development of science and technology, as an important tool for scientific research, the construction of synchrotron radiation light source and free electron laser device is booming all over the world, and their user groups are also increasing rapidly, which requires these devices to be stable To ensure the smooth progress of scientific research, a basic system to ensure the smooth operation of the device is the complex magnet system. [0003] see Figure 1 to Figure 4 ,in figure 1 It is a schematic cross-sectional view of a Lambertson type cutting magnet in the prior art, figure 2 It is the magnetic field schematic diagram of the Lambertson type cutting magnet in the prior art, image 3 It is a schematic diagram of the three-dimensional str...

AI Technical Summary

Problems solved by technology

These two methods not only greatly increase the difficulty of designing and manufacturing Lambertson-type cutting magnets, but also increase the manufacturing cost of the magnets, and their versatility is not strong

Moreover, although the above two existing methods reduce the leakage field inside the field-free region of the Lambertson-type cutting magnet, they do not reduce the leakage field to zero, and deflection and coupling will still occur for the particle beam passing through the field-free region. and other effects affecting beam quality

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