RuPAC-2010 - List of Keywords (resonance)

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resonance

Paper	Title	Other Keywords	Page
TUCHX02	Present Status of VEPP-2000	lattice, optics, luminosity, betatron	1
	D. B. Shwartz, D. E. Berkaev, A. N. Kirpotin, I. Koop, A. P. Lysenko, I. Nesterenko, E. Perevedentsev, Yu. A. Rogovsky, A. L. Romanov, P. Yu. Shatunov, Y. M. Shatunov, A. N. Skrinsky, I. Zemlyansky BINP SB RAS, Novosibirsk
	VEPP-2000 electron-positron collider has been completed in the Budker INP in 2007. First beam was captured in a special lattice with switched off final focus solenoids. This regime is used for all machine subsystems test and calibration as well as vacuum chamber treatment by synchrotron radiation with electron beam current up to 150 mA. Another special low-beta lattice with solenoids switched on partially was used for the first test of the round beam option at the energy of 508 MeV. Studies of the beam-beam interaction were done in "weak-strong" and "strong-strong" regimes. Measurements of beam sizes in the both cases have indicated beam behaviour similar to expectations for the round colliding beams. Also the first collider energy calibration at the phy-meson resonance was performed with SND detector. Since the end of 2009 VEPP-2000 started first experimental work with both particle detectors SND and CMD-3 at the energies of 500-950 MeV range with the lattice mode close to project.
	Slides

TUCHA01	Accelerator Aspects of the Precision Mass Measurement Experiments at the VEPP-4M Collider with the KEDR Detector	polarization, electron, collider, positron	11
	S. A. Nikitin BINP SB RAS, Novosibirsk
	One of most important constituents of the mass measurement experiments at colliders is a precision absolute beam energy calibration. Two methods for particle energy measurement are realized at the electron-positron collider VEPP-4M: one based on the resonant depolarization technique and another using the Back Compton Scattering. KEDR detector measurements of the J/Psi-, Psi' – mesons and the tau-lepton masses performed with the help of these methods is better in accuracy now in the world. Peculiarities of the beam energy calibraton as well as of the mass measurement experiments are represented in the viewpoint of requirements on beam parameters and accelerator systems.
	Slides

TUPSA018	Intercation of the Biomolecular Ions with the Electron Target in the Electrostatic Storage Ring	ion, electron, target, storage-ring	80
	S. G. Shirkov JINR, Dubna, Moscow Region
	A nanostructure of the radiation damages is formed at an interaction of decelerated protons or carbon ions with DNA molecules at hadron therapy. A local interaction of the ion beam with the bimolecular structures in the human cells is defined mainly by parameters of the ion tracks. The track core is connected with ionization properties of the charged ion, its cross-section sizes are defined by the delta-electrons. The delta-electron energy varies statistically from several eV to few keV therefore they lead to substance ionization along their trajectory on a distance several nanometers from that point where they were produced. Interaction of the delta-electrons with DNA molecules and other biological structures is one of the important mechanisms realized in process of the hadron therapy. A study of interaction of the accelerated biomolecular ions with an electronic target in electrostatic storage ring was performed for modeling of an input of the delta-electrons in processes of the hadron therapy.

TUPSA026	RTS&T Code Status	simulation, radiation, target, ion	92
	I. I. Degtyarev, O. A. Liashenko, F. N. Novoskoltsev, I. A. Yazynin IHEP Protvino, Protvino, Moscow Region A. I. Blokhin Institute of Physics and Power Engineering (IPPE), Obninsk
	The paper describes the main features of the RTS&T–2010 — the modern version of the RTS&T (Radiation Transport Simulation and Isotopes Transmutation problem) code system. RTS&T performs detailed Monte Carlo simulations of many type of particles transport in complex spatial geometries with composite materials in the energy range from thermal energy up to 100 TeV. The RTS&T code considers interaction of low-, intermediate-, and high- energy particles with condensed matter, including hadron-nucleus interactions inside the target, generation and transportation of secondary particles, deposition of energy and production of radionuclides in the target. Recently, the transfer of ions was added and tested.

TUPSA035	Shapes of Nuclear Induction Signals under Inhomogeneous Magnetic Fields	induction, radio-frequency, site, acceleration	119
	V. G. Ryzhov MRTI RAS, Moscow
	The influence of the inhomogeneous magnetic field on the shape of nuclear induction signals is analyzed. The most frequent five of magnetic field distributions: Lorentz, Gaussian, exponential, triangular and ideal “square”- are described. Nonideal "square" distributions that have finite duration pulse edges variable by Lorentz, Gaussian, exponential and triangular dependences are considered. The signal change as a result of placing of nuclear spins under the constant gradient magnetic field is studied. All results have been found in the analytical form taking into an account the magnetic screening effect of atomic nuclei.

TUPSA036	Advance of the Marginal Oscillator	feedback, induction, impedance, electron	122
	V. G. Ryzhov MRTI RAS, Moscow
	The advance of the transistor marginal oscillator (TMO) circuits are considered. The various TMO circuits, the features of their functioning and the simple NMR magnetometers based on them are reviewed.

THCHC02	Development of Fast-Cycling Superconducting Quadrupole and Corrector Magnets for the SIS 300	quadrupole, multipole, sextupole, dipole	300
	L. Tkachenko, I. Bogdanov, S. Kozub, P. A. Shcherbakov, I. Slabodchikov, V. Sytnik, V. Zubko IHEP Protvino, Protvino, Moscow Region
	Funding: Rosatom, contract Н.4е.45.03.10.1027 IHEP participates in the development of superconducting fast-cycling magnets for the FAIR project. In the frame of this project IHEP has developed a prototype of the main quadrupole, assigned for using in the SIS300 ring. The main parameters of the quadrupole are: 45-T/m central gradient in 125-mm ID of the coil with the useful aperture of 10⁵ mm; the gradient ramp rate is 10 T/m/c and the length of the prototype is 1 m. The main characteristics of the designed quadrupole magnet are discussed here. The correction system consists of multipole magnets, resonance and chromaticity sextupoles and steering dipoles. The multipole magnet contains octupole, sextupole and quadrupole coils and the steering magnet involves horizontal and vertical dipoles. Geometries of corrector and steering magnets are presented as well as their main magnetic parameters.
	Slides

THPSC004	Input Couplers for the Dipole Mode Periodic Structures	coupling, simulation, dipole, emittance	328
	M. V. Lalayan, A. Anisimov, S. V. Kutsaev, A. Yu. Smirnov, N. P. Sobenin MEPhI, Moscow V. V. Paramonov RAS/INR, Moscow A. A. Zavadtsev, D. A. Zavadtsev Nano, Moscow
	Funding: Research is supported by Federal Education agency grant P1141 27.08.2009 and by FCP "Scientific and scientific-educational stuff of innovative Russia" grant. Three variants of the input coupler for the periodic deflecting structure operating at hybrid dipole TM11 mode, with the phase velocity equal to the light velocity are considered: non-symmetric design and two symmetric designs with auxiliary rectangular waveguide and shorting plates in it and with auxiliary cut-off rectangular waveguide. The reflection depending on the coupling window width and on the coupling cell diameter was been investigated for all coupler designs. The reflection coefficient has been calculated in the whole dipole mode passband. The field asymmetry in the beam area has been considered. The eigen frequency of the coupling cell has been calculated.

THPSC018	Power Source for High Voltage Column of Injector to Proton Synchrotron with Output Power up to 5kW	controls, synchrotron, proton, electron	360
	D. V. Senkov, Yu. I. Golubenko, A. S. Medvedko, P. I. Nemytov, D. N. Pureskin BINP SB RAS, Novosibirsk
	The presented report contains the description of power source with 400Hz output voltage of sinusoidal shape with amplitude up to 300V and output power up to 5kW, operating on the primary coil of high voltage transformer of precision 1.5MV high voltage source for proton synchrotron injector. The source consists of the converter with IGBT switches , working with a principle of pulse-width modulation on programmed from 15 to 25 kHz frequency, modulated with amplitude and frequency regulated sinusoidal 400Hz signal, transformer and the synchronous rectifier with IGBT switches, controlled synchronous with converter. The efficiency of system is more than 80% at the nominal output power 5kW. The controller of the source is developed with DSP and PLM, which allows optimizing operations of the source. For control of the source serial CAN-interface is used. The description of the source and the test results are presented.