Fast and precise technique for magnet lattice correction via sine-wave excitation of fast correctors
Abstract
A novel technique has been developed to improve the precision and shorten the measurement time of the LOCO (linear optics from closed orbits) method. This technique, named AC LOCO, is based on sine-wave (ac) beam excitation via fast correctors. Such fast correctors are typically installed at synchrotron light sources for the fast orbit feedback. The beam oscillations are measured by beam position monitors. The narrow band used for the beam excitation and measurement not only allows us to suppress effectively the beam position noise but also opens the opportunity for simultaneously exciting multiple correctors at different frequencies (multifrequency mode). We demonstrated at NSLS-II that AC LOCO provides better lattice corrections and works much faster than the traditional LOCO method.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1355069
- Alternate Identifier(s):
- OSTI ID: 1413915
- Report Number(s):
- BNL-114344-2017-JA
Journal ID: ISSN 2469-9888; PRABCJ; 054001
- Grant/Contract Number:
- AC02-98CH10886; SC0012704
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Accelerators and Beams
- Additional Journal Information:
- Journal Name: Physical Review Accelerators and Beams Journal Volume: 20 Journal Issue: 5; Journal ID: ISSN 2469-9888
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; NSLS-II; LOCO; linear optics; closed orbits; National Synchrotron Light Source II
Citation Formats
Yang, X., Smaluk, V., Yu, L. H., Tian, Y., and Ha, K. Fast and precise technique for magnet lattice correction via sine-wave excitation of fast correctors. United States: N. p., 2017.
Web. doi:10.1103/PhysRevAccelBeams.20.054001.
Yang, X., Smaluk, V., Yu, L. H., Tian, Y., & Ha, K. Fast and precise technique for magnet lattice correction via sine-wave excitation of fast correctors. United States. https://doi.org/10.1103/PhysRevAccelBeams.20.054001
Yang, X., Smaluk, V., Yu, L. H., Tian, Y., and Ha, K. Tue .
"Fast and precise technique for magnet lattice correction via sine-wave excitation of fast correctors". United States. https://doi.org/10.1103/PhysRevAccelBeams.20.054001.
@article{osti_1355069,
title = {Fast and precise technique for magnet lattice correction via sine-wave excitation of fast correctors},
author = {Yang, X. and Smaluk, V. and Yu, L. H. and Tian, Y. and Ha, K.},
abstractNote = {A novel technique has been developed to improve the precision and shorten the measurement time of the LOCO (linear optics from closed orbits) method. This technique, named AC LOCO, is based on sine-wave (ac) beam excitation via fast correctors. Such fast correctors are typically installed at synchrotron light sources for the fast orbit feedback. The beam oscillations are measured by beam position monitors. The narrow band used for the beam excitation and measurement not only allows us to suppress effectively the beam position noise but also opens the opportunity for simultaneously exciting multiple correctors at different frequencies (multifrequency mode). We demonstrated at NSLS-II that AC LOCO provides better lattice corrections and works much faster than the traditional LOCO method.},
doi = {10.1103/PhysRevAccelBeams.20.054001},
journal = {Physical Review Accelerators and Beams},
number = 5,
volume = 20,
place = {United States},
year = {2017},
month = {5}
}
https://doi.org/10.1103/PhysRevAccelBeams.20.054001
Web of Science