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|a (TOE)ost1475164
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|a (TOE)1475164
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|a bnl--209095-2018-jaam
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|a Betatron phase and nonlinear lattice correction
|h [electronic resource]
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|a Washington, D.C. :
|b United States. Department of Energy. Office of Basic Energy Sciences ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
|c 2018.
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|a Article No. 081001 :
|b digital, PDF file.
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|a text
|b txt
|2 rdacontent.
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|a computer
|b c
|2 rdamedia.
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|a online resource
|b cr
|2 rdacarrier.
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|a Published through SciTech Connect.
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|a 08/10/2018.
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|a "bnl--209095-2018-jaam"
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|a Physical Review Accelerators and Beams 21 8 ISSN 2469-9888; PRABCJ AM.
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|a Weiming Guo; Yoshiteru Hidaka; Ferdinand Willeke; Xi Yang.
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|a Betatron phase measured from excited oscillation can be used to correct the beta function and the nonlinear lattice. With an improved algorithm the measurement precision has achieved 1 mrad (rms), or equivalently, 0.3% of beta beat at NSLS-II. The beta beating can be corrected to 1% in less than half an hour. This precise technique can be applied to the nonlinear lattice correction as well. The betatron phase probed by an off-axis beam provides information on the sextupole strength. In comparison with the model the nominal strength can be restored. It was shown that the proposed scheme treated all the leading order resonance driving terms generated by sextupoles, as well as the detuning terms and the nonlinear chromaticity. In conclusion, at NSLS-II a half percent sextupole correction led to a 15% increase of the dynamic aperture.
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|b SC0012704.
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|a Materials Science.
|2 edbsc.
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|a Brookhaven National Laboratory.
|4 res.
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|a United States.
|b Department of Energy.
|b Office of Basic Energy Sciences.
|4 spn.
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| 710 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
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|u http://www.osti.gov/scitech/biblio/1475164
|z Online Access (via OSTI)
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|a .b10481892x
|b 03-09-23
|c 05-17-19
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|a web
|b 05-17-19
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f |
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|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99:bnl--209095-2018-jaam
|h Superintendent of Documents classification
|i web
|n 1
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