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Measurements of undulator radiation power noise and comparison with ab initio calculations
- Source :
- Physical Review Accelerators and Beams, Vol 24, Iss 4, p 040701 (2021)
- Publication Year :
- 2021
- Publisher :
- American Physical Society, 2021.
-
Abstract
- Generally, turn-to-turn fluctuations of synchrotron radiation power in a storage ring depend on the 6D phase-space distribution of the electron bunch. This effect is related to the interference of fields radiated by different electrons. Changes in the relative electron positions and velocities inside the bunch result in fluctuations in the total emitted energy per pass in a synchrotron radiation source. This effect has been previously described assuming constant and equal electron velocities before entering the synchrotron radiation source. In this paper, we present a generalized formula for the fluctuations with a non-negligible beam divergence. Further, we corroborate this formula in a dedicated experiment with undulator radiation in the Integrable Optics Test Accelerator (IOTA) storage ring at Fermilab. Lastly, possible applications in beam instrumentation are discussed.
- Subjects :
- Physics
Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)
010308 nuclear & particles physics
Surfaces and Interfaces
Electron
Undulator
Radiation
01 natural sciences
Synchrotron
law.invention
Computational physics
law
Ab initio quantum chemistry methods
Power noise
0103 physical sciences
Physics::Accelerator Physics
lcsh:QC770-798
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
010306 general physics
Subjects
Details
- Language :
- English
- ISSN :
- 24699888
- Volume :
- 24
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Physical Review Accelerators and Beams
- Accession number :
- edsair.doi.dedup.....c6f38c10dac0380db3260354842b18ac