IPAC2015 - List of Authors (Li, C.L.)

Paper	Title	Page
MOPWI035	Characterization of Visible Synchrotron Radiation Polarization at SPEAR3	1240
	W.J. Corbett, A.M. Kiss SLAC, Menlo Park, California, USA M.J. Boland The University of Melbourne, Melbourne, Victoria, Australia C.L. Li East China University of Science and Technology, Shanghai, People's Republic of China
	Schwinger's equations predict the angular- and spectral distribution of synchrotron radiation across a wide band of the electromagnetic spectrum. Using a visible-light diagnostic beam line, it is possible to characterize the electric field polarization state as a function of vertical observation angle and compare with theory. Complications include accounting for - and π-mode transmission factors at mirror surfaces and precise alignment of the polarizing optics with the principle beam axes. The Stokes parameters are measured and beam polarization ellipse reported.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI035
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MOPWI036	Investigation of Continuous Scan Methods for Rapid Data Acquisition	1243
	C.L. Li East China University of Science and Technology, Shanghai, People's Republic of China A.M. Kiss SLAC, Menlo Park, California, USA W.J. Zhang University of Saskatchewan, Saskatoon, Canada
	It is common practice to perform spatially resolved X ray data acquisition by automatically moving components to discrete locations and then measuring beam intensity with the system at rest. While effective, scanning in this manner can be time consuming, with motors needing to accelerate, move and decelerate at each location before recording data. Information between data points may be missed unless fine grid scans are performed, which accounts for a further increase of scan time. Recent advances in commercial hardware and software enables a continuous scan capability for a wide range of applications, which saves the start and end of step motors. To compare scanning performance, both step and continuous scan modes were examined using the SPEC command language with both commercial and in-house hardware. The advantages and limitations of each are discussed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI036
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Characterization of Visible Synchrotron Radiation Polarization at SPEAR3

1240

W.J. Corbett, A.M. Kiss
SLAC, Menlo Park, California, USA
M.J. Boland
The University of Melbourne, Melbourne, Victoria, Australia
C.L. Li
East China University of Science and Technology, Shanghai, People's Republic of China

Schwinger's equations predict the angular- and spectral distribution of synchrotron radiation across a wide band of the electromagnetic spectrum. Using a visible-light diagnostic beam line, it is possible to characterize the electric field polarization state as a function of vertical observation angle and compare with theory. Complications include accounting for - and π-mode transmission factors at mirror surfaces and precise alignment of the polarizing optics with the principle beam axes. The Stokes parameters are measured and beam polarization ellipse reported.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI035

Export •

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

MOPWI036

Investigation of Continuous Scan Methods for Rapid Data Acquisition

1243

C.L. Li
East China University of Science and Technology, Shanghai, People's Republic of China
A.M. Kiss
SLAC, Menlo Park, California, USA
W.J. Zhang
University of Saskatchewan, Saskatoon, Canada

It is common practice to perform spatially resolved X ray data acquisition by automatically moving components to discrete locations and then measuring beam intensity with the system at rest. While effective, scanning in this manner can be time consuming, with motors needing to accelerate, move and decelerate at each location before recording data. Information between data points may be missed unless fine grid scans are performed, which accounts for a further increase of scan time. Recent advances in commercial hardware and software enables a continuous scan capability for a wide range of applications, which saves the start and end of step motors. To compare scanning performance, both step and continuous scan modes were examined using the SPEC command language with both commercial and in-house hardware. The advantages and limitations of each are discussed.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPWI036

Export •

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