RUPAC2012 - List of Authors (Vernov, A.)

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]

WEPPD010

Study of Two Cavities Accelerating Module at SR Source Siberia-2

587

V.I. Moiseev, V. Korchuganov, A.S. Smygacheva, A. Vernov
NRC, Moscow, Russia

SR source Siberia-2 RF system includes an accelerating module consisting of two 181 MHz cavities powered by one amplifier. Some problem occured now is the accelerating voltage instubility under high beam currents conditions. The phase shift between the voltages at cavities causes the asymmetry in beam loading and detuning of cavities. To study the performances of accelerating module, the analytical description has been developed. The whole system can be characterized by seven parameters. These base parameters give the relations of voltages and currents in system. Measurements determine the real values of the base parameters. Set of non linear equations recived can be reduced to the voltages and currents in system as the functions of beam current and energy. The results can be applied to injection and ramping in Siberia-2.

TUPPB035

The Kicker Parameters Estimation for Longitudinal Instability Damping of the Beam at SR Storage Ring "Siberia-2"

394

A.S. Smygacheva, V. Korchuganov
NRC, Moscow, Russia
A. Vernov
RRC, Moscow, Russia

RF system of the Kurchatov Institute Synchrotron Radiation storage ring "Siberia-2" consists of three cavities. Each of them has two HOMs tuners. Due to the shunt impedance and quality factor of HOMs are high, the beam-cavity interaction leads to the instability and the beam loss as the result. We have to develop a longitudinal feedback system based on the kicker, to cure the longitudinal instabilities. In the article the investigations of the field spectra of the cavities at the beam energy 450 MeV and 2,5 GeV, excited by the beam and the generator, are presented. According to the measurements of the field spectra of the cavities, the most strong HOMs were found. Main parameters of the kicker such as a frequency, a shunt impedance, a quality factor and a power, were calculated.

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]

WEPPD010	Study of Two Cavities Accelerating Module at SR Source Siberia-2	587
	V.I. Moiseev, V. Korchuganov, A.S. Smygacheva, A. Vernov NRC, Moscow, Russia
	SR source Siberia-2 RF system includes an accelerating module consisting of two 181 MHz cavities powered by one amplifier. Some problem occured now is the accelerating voltage instubility under high beam currents conditions. The phase shift between the voltages at cavities causes the asymmetry in beam loading and detuning of cavities. To study the performances of accelerating module, the analytical description has been developed. The whole system can be characterized by seven parameters. These base parameters give the relations of voltages and currents in system. Measurements determine the real values of the base parameters. Set of non linear equations recived can be reduced to the voltages and currents in system as the functions of beam current and energy. The results can be applied to injection and ramping in Siberia-2.

TUPPB035	The Kicker Parameters Estimation for Longitudinal Instability Damping of the Beam at SR Storage Ring "Siberia-2"	394
	A.S. Smygacheva, V. Korchuganov NRC, Moscow, Russia A. Vernov RRC, Moscow, Russia
	RF system of the Kurchatov Institute Synchrotron Radiation storage ring "Siberia-2" consists of three cavities. Each of them has two HOMs tuners. Due to the shunt impedance and quality factor of HOMs are high, the beam-cavity interaction leads to the instability and the beam loss as the result. We have to develop a longitudinal feedback system based on the kicker, to cure the longitudinal instabilities. In the article the investigations of the field spectra of the cavities at the beam energy 450 MeV and 2,5 GeV, excited by the beam and the generator, are presented. According to the measurements of the field spectra of the cavities, the most strong HOMs were found. Main parameters of the kicker such as a frequency, a shunt impedance, a quality factor and a power, were calculated.