IPAC2015 - List of Authors (Safranek, J.A.)

Paper	Title	Page
TUPHA012	LOCO Application to NSLS2 SR Dispersion and Beta Beating Correction	1989
	X. Yang BNL, Upton, Long Island, New York, USA X. Huang, J.A. Safranek SLAC, Menlo Park, California, USA
	During the short run in early July, 2014, we made changes to the Matlab LOCO setup for NSLS-II and applied LOCO successfully to the machine. The MML setup was verified with I/O tests for all quadrupole families. The LOCO setup was further tested with an intentional quadrupole error. After the successful LOCO correction, the rms beta beat was reduced from the initial values of 5.5% x and 5.6% y, to 1.9% x and 1.0% y, respectively. The rms horizontal dispersion error was reduced from 21 mm to 6 mm. It is critical to keep the same closed orbit for LOCO correction to take effect. Because presently some correctors are nearly saturated, closed orbit cannot be controlled for additional iterations. We expect LOCO to achieve better optics correction after the orbit control is improved.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPHA012
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WEBD2	Survey of Commissioning of Recent Storage Ring Light Sources	2482
	M. Borland ANL, Argonne, Ilinois, USA R. Bartolini, I.P.S. Martin DLS, Oxfordshire, United Kingdom L.O. Dallin CLS, Saskatoon, Saskatchewan, Canada P. Kuske, R. Müller HZB, Berlin, Germany L.S. Nadolski SOLEIL, Gif-sur-Yvette, France F. Pérez ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain J.A. Safranek SLAC, Menlo Park, California, USA S. Shin PAL, Pohang, Kyungbuk, Republic of Korea Z.T. Zhentang SINAP, Shanghai, People's Republic of China
	Funding: Work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The Advanced Photon Source and other existing storage ring light sources are contemplating replacing an existing, operating storage ring with a multi-bend achromat lattice. One issue is that existing light sources have large user communities who are greatly inconvenienced by extended shutdowns. Hence, there will be a premium placed on rapid commissioning of the new lattice. To better understand the possibilities, we undertook a survey of recent commissioning experience at third-generation light sources. We present a summary of that survey here.
	Slides WEBD2 [0.173 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEBD2
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Paper

Title

Page

LOCO Application to NSLS2 SR Dispersion and Beta Beating Correction

1989

X. Yang
BNL, Upton, Long Island, New York, USA
X. Huang, J.A. Safranek
SLAC, Menlo Park, California, USA

During the short run in early July, 2014, we made changes to the Matlab LOCO setup for NSLS-II and applied LOCO successfully to the machine. The MML setup was verified with I/O tests for all quadrupole families. The LOCO setup was further tested with an intentional quadrupole error. After the successful LOCO correction, the rms beta beat was reduced from the initial values of 5.5% x and 5.6% y, to 1.9% x and 1.0% y, respectively. The rms horizontal dispersion error was reduced from 21 mm to 6 mm. It is critical to keep the same closed orbit for LOCO correction to take effect. Because presently some correctors are nearly saturated, closed orbit cannot be controlled for additional iterations. We expect LOCO to achieve better optics correction after the orbit control is improved.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPHA012

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEBD2

Survey of Commissioning of Recent Storage Ring Light Sources

2482

M. Borland
ANL, Argonne, Ilinois, USA
R. Bartolini, I.P.S. Martin
DLS, Oxfordshire, United Kingdom
L.O. Dallin
CLS, Saskatoon, Saskatchewan, Canada
P. Kuske, R. Müller
HZB, Berlin, Germany
L.S. Nadolski
SOLEIL, Gif-sur-Yvette, France
F. Pérez
ALBA-CELLS Synchrotron, Cerdanyola del Vallès, Spain
J.A. Safranek
SLAC, Menlo Park, California, USA
S. Shin
PAL, Pohang, Kyungbuk, Republic of Korea
Z.T. Zhentang
SINAP, Shanghai, People's Republic of China

Funding: Work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
The Advanced Photon Source and other existing storage ring light sources are contemplating replacing an existing, operating storage ring with a multi-bend achromat lattice. One issue is that existing light sources have large user communities who are greatly inconvenienced by extended shutdowns. Hence, there will be a premium placed on rapid commissioning of the new lattice. To better understand the possibilities, we undertook a survey of recent commissioning experience at third-generation light sources. We present a summary of that survey here.

Slides WEBD2 [0.173 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-WEBD2

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)