IPAC2021 - List of Authors (Chubar, O.V.)

Paper	Title	Page
THPAB198	Commissioning of Current Strips for Elliptically Polarizing Undulators at NSLS-II	4160
	Y. Hidaka, O.V. Chubar, T. Tanabe BNL, Upton, New York, USA C.A. Kitégi SOLEIL, Gif-sur-Yvette, France
	Funding: This work is supported by U.S. DOE under Contract No. DE-SC0012704. Most of the Elliptically Polarizing Undulators (EPUs) at NSLS-II are equipped with current strips (or flat wires), attached to their vacuum chambers. These strips compensate the dynamic field integrals of the EPU to minimize undesirable nonlinear beam dynamics effect that can lead to reduction in injection efficiency and beam lifetime. For each EPU, we measured the field integrals of the insertion device alone, the current strips alone, and both, while creating horizontal bumps of different amplitudes at the straight section to assess the effectiveness of the compensation provided by the design current values for the strips. The commissioning results of these current strips are reported in this article.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB198
About •	paper received ※ 19 May 2021 paper accepted ※ 23 June 2021 issue date ※ 28 August 2021
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Commissioning of Current Strips for Elliptically Polarizing Undulators at NSLS-II

4160

Y. Hidaka, O.V. Chubar, T. Tanabe
BNL, Upton, New York, USA
C.A. Kitégi
SOLEIL, Gif-sur-Yvette, France

Funding: This work is supported by U.S. DOE under Contract No. DE-SC0012704.
Most of the Elliptically Polarizing Undulators (EPUs) at NSLS-II are equipped with current strips (or flat wires), attached to their vacuum chambers. These strips compensate the dynamic field integrals of the EPU to minimize undesirable nonlinear beam dynamics effect that can lead to reduction in injection efficiency and beam lifetime. For each EPU, we measured the field integrals of the insertion device alone, the current strips alone, and both, while creating horizontal bumps of different amplitudes at the straight section to assess the effectiveness of the compensation provided by the design current values for the strips. The commissioning results of these current strips are reported in this article.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB198

About •

paper received ※ 19 May 2021 paper accepted ※ 23 June 2021 issue date ※ 28 August 2021

Export •

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