Variable-Period Undulators - A Potential Source for Storage Ring, ERL and FEL Applications
- Advanced Photon Source, Argonne National Lab, IL 60439 (United States)
- Budker Institute of Nuclear Physics, 630090 Novosibirsk (Russian Federation)
A unique capability to vary the length of magnetic period in an undulator can be achieved with a geometry based on staggered arrays of permeable poles placed in a magnetic solenoid. The new classes of solenoid-derived undulators, which do not use permanent magnets, have the potential to provide wide tunability of the first and third energy harmonics by varying the length of the magnetic period and solenoid field, and deliver only small powers at undesired harmonics. The magnetic and spectral properties of such 'variable-period undulator' operating on the proposed PETRA III storage ring are presented to demonstrate the superior performance of such a device in comparison to conventional permanent-magnet hybrid undulators. They have the potential to be useful as synchrotron radiation sources at both currently operating and future low-emittance storage rings, energy-recovery linacs (ERLs), and free-electron lasers (FELs)
- OSTI ID:
- 20652931
- Journal Information:
- AIP Conference Proceedings, Vol. 705, Issue 1; Conference: 8. international conference on synchrotron radiation instrumentation, San Francisco, CA (United States), 25-29 Aug 2003; Other Information: DOI: 10.1063/1.1757787; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COMPARATIVE EVALUATIONS
ENERGY RECOVERY
FREE ELECTRON LASERS
GEOMETRY
HARMONICS
LINEAR ACCELERATORS
MAGNETIC FIELDS
PERFORMANCE
PERMANENT MAGNETS
SOLENOIDS
STORAGE RINGS
SYNCHROTRON RADIATION
SYNCHROTRON RADIATION SOURCES
WIGGLER MAGNETS
X RADIATION
X-RAY SPECTRA