RUPAC2012 - List of Keywords (synchrotron-radiation)

Paper	Title	Other Keywords	Page
TUPPB013	Dependence on Betatron Oscillations of the Angular Velocity	radiation, electron, synchrotron, quadrupole	340
	O.E. Shishanin MSIU, Moscow, Russia
	An examination of this topic among other factors is necessary to an understanding of the role of electron vibrations at the formation of synchrotron radiation. Mentioned problem was resolved by author in various periodic magnetic fields. Influence on radiation of the correction terms to the angular velocity for storage rings is also discussed.

WEPPD009	Measurement of Speed of Light Emitted by Ultrarelativistic Source	electron, radiation, synchrotron, cavity	584
	A. Stirin, P. Aleksandrov, V. Korchuganov NRC, Moscow, Russia E.B. Aleksandrov IOFFE, St. Petersburg, Russia V.S. Zapasskii Saint-Petersburg State University, Saint-Petersburg, Russia
	Funding: The work was supported by the Russian Fundation for Basic Research under Project No.11-02-00538-а. The paper focuses on the results of experiments on direct measurement of speed of the light emitted by an ultrarelativistic source. The source of synchrotron radiation (SR), Siberia-1 electron storage ring at Kurchatov Institute, was used as a pulsed source of light. Experiments were made on the visible part of the SR emitted by ultrarelativistic electron bunch moving along a curved trajectory in the magnetic field of the bending magnet. The measured value of speed of the light pulse in vacuum coincided with the tabular value of the light speed within 0.5%. Results of the measurements support the second postulate of Einstein's special theory of relativity about independence of speed of light from the source velocity. The paper contains schematic of the experiment, description of its components, main parameters of Siberia-1 electron storage ring and electron bunches. Description of the method of direct measurement of light speed as well as experimental oscillograms and calculation data are also presented.

WEPPD052	Modernization of the Automated Control System in the Kurchatov Synchrotron Radiation Source	controls, vacuum, synchrotron, radiation	659
	E.V. Kaportsev, V. Dombrovsky, Y.V. Efimov, V. Korchuganov, Y.V. Krylov, K. Moseev, N.I. Moseiko, A.G. Valentinov, Y.L. Yupinov NRC, Moscow, Russia
	The running cycle of Kurchatov Synchrotron Radiation Source (KSRS) includes the injection of electrons with energy 80 MeV from the linear accelerator in the booster storage ring Siberia-1, the accumulation of a electron current up to 300 mA and, then, electron energy ramping up to 450 MeV with the subsequent extraction of electrons in the main ring, storage ring Siberia-2, and accumulation there up to 200 mA, and at last the energy ramping up to 2.5 GeV. The current automated control system (ACS) of the accelerating-storage complex (ASC) "SIBERIA" was established more than 20 years ago on the basis of the control equipment in the CAMAC standard. It is physically and morally outdated and does not meet modern requirements for speed, accuracy and speed of data transmission. This paper presents some options for replacing the old control system ESC to more modern components, using high-speed processor modules VME, and high-speed industrial network CAN.

Paper

Title

Other Keywords

Page

TUPPB013

Dependence on Betatron Oscillations of the Angular Velocity

radiation, electron, synchrotron, quadrupole

340

O.E. Shishanin
MSIU, Moscow, Russia

An examination of this topic among other factors is necessary to an understanding of the role of electron vibrations at the formation of synchrotron radiation. Mentioned problem was resolved by author in various periodic magnetic fields. Influence on radiation of the correction terms to the angular velocity for storage rings is also discussed.

WEPPD009

Measurement of Speed of Light Emitted by Ultrarelativistic Source

electron, radiation, synchrotron, cavity

584

A. Stirin, P. Aleksandrov, V. Korchuganov
NRC, Moscow, Russia
E.B. Aleksandrov
IOFFE, St. Petersburg, Russia
V.S. Zapasskii
Saint-Petersburg State University, Saint-Petersburg, Russia

Funding: The work was supported by the Russian Fundation for Basic Research under Project No.11-02-00538-а.
The paper focuses on the results of experiments on direct measurement of speed of the light emitted by an ultrarelativistic source. The source of synchrotron radiation (SR), Siberia-1 electron storage ring at Kurchatov Institute, was used as a pulsed source of light. Experiments were made on the visible part of the SR emitted by ultrarelativistic electron bunch moving along a curved trajectory in the magnetic field of the bending magnet. The measured value of speed of the light pulse in vacuum coincided with the tabular value of the light speed within 0.5%. Results of the measurements support the second postulate of Einstein's special theory of relativity about independence of speed of light from the source velocity. The paper contains schematic of the experiment, description of its components, main parameters of Siberia-1 electron storage ring and electron bunches. Description of the method of direct measurement of light speed as well as experimental oscillograms and calculation data are also presented.

WEPPD052

Modernization of the Automated Control System in the Kurchatov Synchrotron Radiation Source

controls, vacuum, synchrotron, radiation

659

E.V. Kaportsev, V. Dombrovsky, Y.V. Efimov, V. Korchuganov, Y.V. Krylov, K. Moseev, N.I. Moseiko, A.G. Valentinov, Y.L. Yupinov
NRC, Moscow, Russia

The running cycle of Kurchatov Synchrotron Radiation Source (KSRS) includes the injection of electrons with energy 80 MeV from the linear accelerator in the booster storage ring Siberia-1, the accumulation of a electron current up to 300 mA and, then, electron energy ramping up to 450 MeV with the subsequent extraction of electrons in the main ring, storage ring Siberia-2, and accumulation there up to 200 mA, and at last the energy ramping up to 2.5 GeV. The current automated control system (ACS) of the accelerating-storage complex (ASC) "SIBERIA" was established more than 20 years ago on the basis of the control equipment in the CAMAC standard. It is physically and morally outdated and does not meet modern requirements for speed, accuracy and speed of data transmission. This paper presents some options for replacing the old control system ESC to more modern components, using high-speed processor modules VME, and high-speed industrial network CAN.