FEL2019 - List of Authors (Liang, X.)

Paper	Title	Page
WEP097	Operational Model of the Athos Undulator Beamline	538
	C. Kittel, M. Calvi, X. Liang, T. Schmidt PSI, Villigen PSI, Switzerland N.J. Sammut University of Malta, Information and Communication Technology, Msida, Malta
	Athos, the new Soft X-ray beamline of SwissFEL, operates 16 Apple X undulators and 15 compact chicanes to implement novel lasing schemes. With the data available after the end of the magnetic measurement campaign (middle 2020), a self-consistent set of equations will be used to summarise all the relevant properties of those devices to start their commissioning. The analytical approach planned will be discussed in great detail and tested with the preliminary experimental data available. Finally, the accuracy of this approach will be evaluated and critically compared to the requirements of the new FEL beamline.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2019-WEP097
About •	paper received ※ 27 August 2019 paper accepted ※ 28 August 2019 issue date ※ 05 November 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEP098	Advanced Operational Models of the Apple X Undulator	541
	X. Liang, M. Calvi, C. Kittel, T. Schmidt PSI, Villigen PSI, Switzerland N.J. Sammut University of Malta, Information and Communication Technology, Msida, Malta
	Athos is a new soft X-ray beamline at SwissFEL, where the Apple X type undulators will be equipped. These devices are flexible to produce light in different polarization modes. An adequate magnetic field model is required for the operation of undulator. The undulator deflection parameter K and its gradient are calculated starting from the Fourier series of the magnetic field. In the classical parallel and anti-parallel operational modes - respectively elliptical and linear modes, the variation of the magnetic field as well as its parameters are evaluated by computer modeling. The results are compared to the magnetic measurements of the first Apple X prototype.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2019-WEP098
About •	paper received ※ 27 August 2019 paper accepted ※ 29 August 2019 issue date ※ 05 November 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Operational Model of the Athos Undulator Beamline

538

C. Kittel, M. Calvi, X. Liang, T. Schmidt
PSI, Villigen PSI, Switzerland
N.J. Sammut
University of Malta, Information and Communication Technology, Msida, Malta

Athos, the new Soft X-ray beamline of SwissFEL, operates 16 Apple X undulators and 15 compact chicanes to implement novel lasing schemes. With the data available after the end of the magnetic measurement campaign (middle 2020), a self-consistent set of equations will be used to summarise all the relevant properties of those devices to start their commissioning. The analytical approach planned will be discussed in great detail and tested with the preliminary experimental data available. Finally, the accuracy of this approach will be evaluated and critically compared to the requirements of the new FEL beamline.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2019-WEP097

About •

paper received ※ 27 August 2019 paper accepted ※ 28 August 2019 issue date ※ 05 November 2019

Export •

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

WEP098

Advanced Operational Models of the Apple X Undulator

541

X. Liang, M. Calvi, C. Kittel, T. Schmidt
PSI, Villigen PSI, Switzerland
N.J. Sammut
University of Malta, Information and Communication Technology, Msida, Malta

Athos is a new soft X-ray beamline at SwissFEL, where the Apple X type undulators will be equipped. These devices are flexible to produce light in different polarization modes. An adequate magnetic field model is required for the operation of undulator. The undulator deflection parameter K and its gradient are calculated starting from the Fourier series of the magnetic field. In the classical parallel and anti-parallel operational modes - respectively elliptical and linear modes, the variation of the magnetic field as well as its parameters are evaluated by computer modeling. The results are compared to the magnetic measurements of the first Apple X prototype.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2019-WEP098

About •

paper received ※ 27 August 2019 paper accepted ※ 29 August 2019 issue date ※ 05 November 2019

Export •

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