'Enclosed' undulator and use
An undulator, closed-type technology, used in magnetic resonance accelerators, radiation/particle processing, nuclear engineering, etc., can solve the problem of low working point of permanent magnets, less magnetic flux generated, and high only half of the material saturation point. and other problems, to achieve the effect of simple and easy debugging and operation, reducing costs and broadening the spectrum
Inactive Publication Date: 2003-11-05
UNIV OF SCI & TECH OF CHINA
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, the undulators used at home and abroad are traditional "open" undulators. The magnetic circuit of this undulator is almost "open". This type of undulator uses expensive permanent magnet materials, but the performance is not good. The magnetic field of the pole head is only half of the saturation point of the material, and it will cause magnetic interference to the surrounding environment.
In addition, such undulators are extremely expensive to manufacture
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] Referring to the accompanying drawings, the moving and stationary permanent magnet groups are respectively composed of small magnetic blocks 8, and those marked with arrows in Fig. 1 are all small magnetic blocks. The movable permanent magnet groups 2 and 6 are respectively connected with the yokes 1 and 7 and fixed on the movable base 11 by the clips 12 . The movable base 11 is placed in the groove of the non-magnetic I-beam 10 . The fixed and permanent magnet groups 3 and 5 are fixed in the grooves of the non-magnetic I-beam 15 and are located between the movable and permanent magnet groups 2 and 6 . The adjustable pole heads 4 are respectively installed on the fixed and permanent magnet groups 3 and 5 . The magnetic field in the working area of the present invention is formed by the small magnetic block of the fixed permanent magnet group passing through the small magnetic block, the pole head and the closed magnetic circuit of the working area of the moving per...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention provides a "closed" undulator. It consists of a pair of moving permanent magnet groups composed of small magnetic blocks, a pair of fixed permanent magnet groups, adjustable poles installed on the magnet group, a yoke, a movable base and a non-magnetic I-beam. The magnetic field in its working area is formed by the small magnetic blocks of the moving and fixed permanent magnet groups through the yoke, the adjustable pole head and the closed magnetic circuit in the working area, so as to realize the closure of the magnetic circuit of the undulator. It can be used in the modification of traditional undulators. The invention realizes the closure of the magnetic circuit, reduces the interference of the magnetic field in the working area to the environment; expands the radiation spectrum of the undulator, and is easy to optimize performance indicators such as radiance and brightness; and reduces the cost of the undulator. The use of dynamic and fixed permanent magnet groups makes the undulator have "switching" performance, so that the installation, debugging and operation of the undulator are simple and easy.
Description
technical field [0001] The present invention relates to the technical field of undulators. Background technique [0002] The undulator is one of the core components widely used in synchrotron radiation accelerators and free electron laser devices. At present, the undulator used at home and abroad is the traditional "open" undulator. The magnetic circuit of this undulator is almost "open", the working point of the permanent magnet is low, the generated magnetic flux is small, and a considerable part of the magnetic flux leaks to the non-working undulator. As a result, although this type of undulator uses expensive permanent magnet materials, the performance is not good. The magnetic field of the pole head is only half of the saturation point of the material, and it causes magnetic interference to the surrounding environment. In addition, such undulators are extremely expensive to manufacture. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to pro...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G21K1/00G21K1/093H05H13/04
Inventor 李格魏英
Owner UNIV OF SCI & TECH OF CHINA