CONTRIBUTED PAPERS


SR Sources And FELs

MODERNIZATION AND DEVELOPMENT OF KURCHATOV CENTER OF SYNCHROTRON RADIATION AND NANOTECHNOLOGY

A. Anoshin, M. Blokhov, V. Leonov, E. Fomin, G. Kovachev, V. Korchuganovª, M. Kovalchuk, Yu. Krylov, V. Kvardakov, M. Martynenko, V. Moryakov, D. Odintsov, S. Pesterev, S. Tomin, Yu. Tarasov, V. Ushkov, A. Valentinov, A. Vernov, Yu. Yupinov, A. Zabelin

Russian Research Centre Kurchatov Institute, Moscow, Russia

Abstract

Kurchatov Synchrotron Radiation Source (KSRS) works for the experiments in the range of SR from VUV up to hard X-ray. Recently a project of technical modernization of KSRS was carried out. It consists of 3 parts: the enlargement of useful experimental hall surface by means of the new building; upgrade of accelerator facilities and injection scheme to improve the SR complex capabilities; construction of new beam lines and experimental stations around Siberia-2 facility. The building was started from the end of 2007. The technical upgrade of SR complex will start in 2009. The report describes the current work and plans at accelerator facilities. The achieved consumer parameters of an electron beam are given.

ª – corresponding author

Paper Slides

197 

OPERATION OF SYNCHROTRON "PAKHRA" IN SYNCHROTRON RADIATION SOURCE MODE

V.A. Karpov¹, G.G. Subbotin¹, A.V. Serovª¹, V.V. Mikhailin²

¹Lebedev Physical Institute of Russian Academy of Sciences, Moscow, Russia

²Lomonosov Moscow State University, Moscow, Russia

Abstract

Upgrade of power system has allowed to implement a new operation mode of the synchrotron "Pakhra". With this mode magnetic field stays constant within t = 380 ms after achieving the maximum value. Time of increase of the magnetic field is 10 ms. Thus electrons move with a constant energy for 95% of synchrotron cycle. Repetition rate of magnetic cycles is 2.5 Hz. Results of experimental researches of particles dynamics peculiarities in this mode for energies 175 and 220 MeV has been described.

ª – corresponding author

Paper Slides

201 

PARTIALLY COHERENT EM RADIATION OF AN ELECTRON BUNCH

M.A. Gorbunovª, A.N. Lebedev

Lebedev Physical Institute of Russian Academy of Sciences, Moscow, Russia

Abstract

Peculiarities of electromagnetic radiation of a spatially non-uniform bunch of electron radiators are considered starting with a general discussion of their temporal and spatial coherence. The obtained spectral-angular characteristics permit to define a coherent part of the total radiation losses of the bunch. Their dependencies on the radiators density within the bunch, including a case of low particles number per one wavelength, permit to estimate the ultimate limit of possible coherent effects in rarified beams. The presented 3D visualization reveals radiators interference and permits to exclude a "useful" part of coherent radiation within a narrow angle along the particles relativistic velocity.

ª – corresponding author

Paper Slides

206 

PHYSICS OF COHERENT RADIATION OF RELATIVISTIC ELECTRON BUNCHES

N. Shul'gaª

Akhiezer Institute for Theoretical Physics, National Science Center Kharkov Institute of Physics and Technology, Kharkov, Ukraine

ª – corresponding author

No paper Slides

Contribution not received

THE COMPARISON OF MONOCHROMATIC X-RAY SOURCES BASED ON X-RAY TUBE AND 5 MeV MICROTRON FOR POSSIBLE APPLICATION IN MEDICINE

A.P. Potylitsyn¹, Yu.A. Popov¹, A.V. Vukolov¹, I.V. Zaitsev¹, A.R. Wagnerª¹, V.N. Zabaev²

¹Tomsk Polytechnic University, Tomsk, Russia

²Nuclear Physics Institute, Tomsk, Russia

Abstract

With progress of accelerator and computer techniques a question about using of the monochromatic X-ray sources for medicine diagnostic purposes becomes more and more actual.

In principle the monochromatic X-ray radiation may be generated using X-ray tube and crystal-monochromator. Nevertheless even using modern X-ray tubes with rotating anode it is impossible to generate the flux density of monochromatic radiation of required intensity.

ª – corresponding author

Paper Slides

203