RUPAC2012 - List of Authors (Tomin, S.I.)

Paper

Title

Page

The Development of Synchrotron Radiation Source of NRC "Kurchatov Institute"

126

V. Korchuganov, A. Belkov, Y.A. Fomin, E.V. Kaportsev, G.A. Kovachev, M.V. Kovalchuk, Y.V. Krylov, K. Kuznetsov, V.V. Kvardakov, V.V. Leonov, V.I. Moiseev, V.P. Moryakov, K. Moseev, N.I. Moseiko, D.G. Odintsov, S.G. Pesterev, Yu.F. Tarasov, S.I. Tomin, V. Ushkov, A.G. Valentinov, A. Vernov, Y.L. Yupinov, A.V. Zabelin
NRC, Moscow, Russia

Russia's first dedicated SR source based on electron storage ring Siberia-2 entered service in late 1999, Kurchatov Institute, Moscow. The report focuses on the consumer parameters of an electron beam and the further development of actual SR source, SR beam lines and experimental stations in 2012.

Slides THXCH02 [5.459 MB]

WEPPD005

Properties of Radiation from the European XFEL Undulator Prototype

S.I. Tomin, N.V. Smolyakov
NRC, Moscow, Russia
G. Geloni, J. Pflüger
European XFEL GmbH, Hamburg, Germany

Funding: The program "Physics with Accelerators and Reactors in West Europe (except CERN)"
In this contribution, we present an analysis of the experimentally measured magnetic field data from the planar hybrid 48 mm period undulator prototype for the European XFEL, and a simulation of expected radiation properties. Because of manufacturing errors, the magnetic field data include a small horizontal component, as well as some irregularities. A Fourier harmonics analysis was carried out. It was found that the vertical component of the measured magnetic field includes a sufficiently noticeable (about 10 percent relative to the fundamental) third harmonic component in addition to the fundamental harmonic. The radiation Stokes parameters are simulated from the experimentally measured magnetic field. Relying on computed radiation distributions, the effective magnetic field amplitude, the effective undulator period and deflection parameter are calculated. Simulations show that the intensity of the fundamental harmonic along the undulator axis is higher compared to the corresponding radiation intensity in the case of an ideal, purely sinusoidal magnetic field. The origin of this effect is analyzed.

WEPPD006

Analytical and Numerical Analysis of Electron Trajectories in a 3-D Undulator Magnetic Field

N.V. Smolyakov, S.I. Tomin
NRC, Moscow, Russia
G. Geloni
European XFEL GmbH, Hamburg, Germany

Funding: Programm: Physics with accelerators and reactors in West Europe (except CERN)
In this contribution we present an analysis of electron trajectories in the three dimensional magnetic field from a planar undulator. The electron trajectory is influenced by the focusing properties of the undulator field. In the European XFEL case, long segmented undulators (21 segments for the SASE3 beamline to 35 for SASE1 and SASE2) are planned to be installed, with quadrupole lenses between different segments. These focusing properties should be taken into account in simulations of spontaneous radiation, which constitutes the background signal of the FEL. The ideal magnetic field of an undulator can be described, in agreement with Maxwell equations, by a sinusoidal vertical magnetic field on the undulator axis, and by horizontal and longitudinal field components that appear out of axis. Exploiting this description for the ideal case, an experimentally measured magnetic field are accounted for by solving the differential equations of motion solved by means of a perturbation theory approach, and the corresponding expressions for the electrons velocities and trajectories are derived. The electrons trajectories for the experimentally measured magnetic field where also simulated numerically. To that aim, a computer code was written, which relies on the Runge-Kutta algorithm. The analytical and numerical methods could then be compared, showing a good agreement.

Paper	Title	Page
THXCH02	The Development of Synchrotron Radiation Source of NRC "Kurchatov Institute"	126
	V. Korchuganov, A. Belkov, Y.A. Fomin, E.V. Kaportsev, G.A. Kovachev, M.V. Kovalchuk, Y.V. Krylov, K. Kuznetsov, V.V. Kvardakov, V.V. Leonov, V.I. Moiseev, V.P. Moryakov, K. Moseev, N.I. Moseiko, D.G. Odintsov, S.G. Pesterev, Yu.F. Tarasov, S.I. Tomin, V. Ushkov, A.G. Valentinov, A. Vernov, Y.L. Yupinov, A.V. Zabelin NRC, Moscow, Russia
	Russia's first dedicated SR source based on electron storage ring Siberia-2 entered service in late 1999, Kurchatov Institute, Moscow. The report focuses on the consumer parameters of an electron beam and the further development of actual SR source, SR beam lines and experimental stations in 2012.
	Slides THXCH02 [5.459 MB]

WEPPD005	Properties of Radiation from the European XFEL Undulator Prototype
	S.I. Tomin, N.V. Smolyakov NRC, Moscow, Russia G. Geloni, J. Pflüger European XFEL GmbH, Hamburg, Germany
	Funding: The program "Physics with Accelerators and Reactors in West Europe (except CERN)" In this contribution, we present an analysis of the experimentally measured magnetic field data from the planar hybrid 48 mm period undulator prototype for the European XFEL, and a simulation of expected radiation properties. Because of manufacturing errors, the magnetic field data include a small horizontal component, as well as some irregularities. A Fourier harmonics analysis was carried out. It was found that the vertical component of the measured magnetic field includes a sufficiently noticeable (about 10 percent relative to the fundamental) third harmonic component in addition to the fundamental harmonic. The radiation Stokes parameters are simulated from the experimentally measured magnetic field. Relying on computed radiation distributions, the effective magnetic field amplitude, the effective undulator period and deflection parameter are calculated. Simulations show that the intensity of the fundamental harmonic along the undulator axis is higher compared to the corresponding radiation intensity in the case of an ideal, purely sinusoidal magnetic field. The origin of this effect is analyzed.

WEPPD006	Analytical and Numerical Analysis of Electron Trajectories in a 3-D Undulator Magnetic Field
	N.V. Smolyakov, S.I. Tomin NRC, Moscow, Russia G. Geloni European XFEL GmbH, Hamburg, Germany
	Funding: Programm: Physics with accelerators and reactors in West Europe (except CERN) In this contribution we present an analysis of electron trajectories in the three dimensional magnetic field from a planar undulator. The electron trajectory is influenced by the focusing properties of the undulator field. In the European XFEL case, long segmented undulators (21 segments for the SASE3 beamline to 35 for SASE1 and SASE2) are planned to be installed, with quadrupole lenses between different segments. These focusing properties should be taken into account in simulations of spontaneous radiation, which constitutes the background signal of the FEL. The ideal magnetic field of an undulator can be described, in agreement with Maxwell equations, by a sinusoidal vertical magnetic field on the undulator axis, and by horizontal and longitudinal field components that appear out of axis. Exploiting this description for the ideal case, an experimentally measured magnetic field are accounted for by solving the differential equations of motion solved by means of a perturbation theory approach, and the corresponding expressions for the electrons velocities and trajectories are derived. The electrons trajectories for the experimentally measured magnetic field where also simulated numerically. To that aim, a computer code was written, which relies on the Runge-Kutta algorithm. The analytical and numerical methods could then be compared, showing a good agreement.