Rotation invariance of electromagnetic radiation generated by relativistic particles in magnetic fields

This paper deals with electromagnetic radiation generated by relativistic particles in arbitrary planar magnetic field (in undulator for example). Magnetic system producing this field is assumed to be planar consisting of permanent magnets. It is shown that there is a special class of magnetic momen...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2000-06, Vol.448 (1), p.85-88
Main Author: Smolyakov, M.N
Format: Article
Language:English
Subjects:
Magnet design
Permanent magnet
Radiation
Undulator
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Summary:This paper deals with electromagnetic radiation generated by relativistic particles in arbitrary planar magnetic field (in undulator for example). Magnetic system producing this field is assumed to be planar consisting of permanent magnets. It is shown that there is a special class of magnetic moment rotations in such system while magnetic field is varying but spontaneous radiation spectrum generated by relativistic particles remains the same. This property of electromagnetic radiation can be used in designing new undulators.
ISSN:0168-9002
1872-9576
DOI:10.1016/S0168-9002(99)00700-7