RuPAC2014 - List of Authors (Gusarova, M.)

Paper	Title	Page
WEPSB06	The Optimization of the Buncher at 145.2 MHz to Reduce Multipactor Effect	166
	M. Gusarova, T. Kulevoy, I.I. Petrushina, A.S. Plastun, S.M. Polozov MEPhI, Moscow, Russia T. Kulevoy, A.S. Plastun ITEP, Moscow, Russia
	The results of the optimization of the cavity of the single gap buncher at 145.2 MHz to reduce multipacting effect are presented. Resonant voltages, impact energies and corresponding particle trajectories are obtained. The variants of design to reduce multipacting effect are considered.

WEPSB07	MultP-M Code Geometry Import Module Performance Optimization	169
	M. Gusarova, S. Khudyakov, M.V. Lalayan MEPhI, Moscow, Russia
	The new possibilities of three-dimensional modeling program multipactor MultP-M are presented. On an example, consider an increase in the speed and accuracy of the calculation using a new algorithm for calculating the use of loading geometry format STL.

THPSC03	Study of Superconducting Accelerating Structures for Megawatt Proton Driver Linac	318
	S.M. Polozov, K.A. Aliev, A.M. Fadeev, M. Gusarova, T. Kulevoy, M.V. Lalayan, N.P. Sobenin, O. Verjbitskiy MEPhI, Moscow, Russia
	Funding: This project was supported by the Ministry of Science and Education of Russia under contract No. 14.516.11.0084 The preliminary design of megawatt level proton accelerator-driver is carrying out by collaboration between Russian scientific centers MEPhI, ITEP, Kurchatov Institute. This project was supported in 2013 by the Ministry of Science and Education of Russia. The linac general layout includes SC Spoke-cavities at middle energy range and elliptical cavity at high energy one. The usage of QWR and/or HWR at 10-30 MeV was also discussed. Due to electrodynamics models of all structures types were designed and the electrodynamics characteristics were studied. QWR, HWQ and Spoke-cavities were proposed to operate on 324 MHz and elliptical cavities on 972 MHz. The main electrodynamics simulation results will present in report. The multipactor study results will also discussed.

THPSC05	Study of Possibility of 600-1000 MeV and 1 MW Proton Driver Linac Development in Russia	324
	S.M. Polozov, A.E. Aksentyev, K.A. Aliev, I.A. Ashanin, Y.A. Bashmakov, A.A. Blinnikov, T.V. Bondarenko, A.N. Didenko, M.S. Dmitriyev, V.V. Dmitriyeva, V.S. Dyubkov, A.M. Fadeev, A. Fertman, M. Gusarova, A.A. Kalashnikova, V.I. Kaminsky, E. Khabibullina, Yu.D. Kliuchevskaia, A.D. Kolyaskin, T. Kulevoy, M.V. Lalayan, S.V. Matsievskiy, V.I. Rashchikov, A.V. Samoshin, E.A. Savin, Ya.V. Shashkov, A.Yu. Smirnov, N.P. Sobenin, S.E. Toporkov, O. Verjbitskiy, A.V. Ziiatdinova, V. Zvyagintsev MEPhI, Moscow, Russia P.N. Alekseev, V.A. Nevinnitsa NRC, Moscow, Russia V.F. Batyaev, G. Kropachev, D.A. Liakin, S.V. Rogozhkin, Y.E. Titarenko ITEP, Moscow, Russia S. Stark INFN/LNL, Legnaro (PD), Italy
	Funding: This project was supported by the Ministry of Science and Education of Russia under contract No. 14.516.11.0084 Alternative nuclear energetic's technologies as fast reactors and accelerating driven systems (ADS) are necessary to solve a number of problems as U-238 or thorium fuel reactor and nuclear wastes transmutation. ADS subcritical system should consist of megawatt-power proton accelerator, neutron producing target and breeder. A number of ADS projects are under development in EU, Japan, USA, China, S.Korea at present. Superconducting linacs or their complexes with high energy storage synchrotron are under design in main projects as a megawatt power proton beam driver. In Russian Federation the complex design for accelerator-driver was carried down more than ten years ago. The new approach to the ADS complex is now under development in framework of the project carried out by collaboration between Russian scientific centers MEPhI, ITEP, Kurchatov Institute. This project was supported in 2013 by the Ministry of Science and Education of Russia. A brief results observation for accelerator part of the project is presented in report. It includes accelerator-driver general layout, beam dynamics simulation, electrodynamics simulations of accelerating cavities and analysis of technological background in Russia.

THPSC18	Suppression of Mechanical Oscillations in Quarterwave 10⁶ MHz Resonator	359
	M. Gusarova, I.I. Petrushina, I.V. Rybakov, Ya.V. Shashkov, Ya.V. Shashkov, V. Zvyagintsev MEPhI, Moscow, Russia V. Zvyagintsev TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	Analytical calculations and numerical simulations have been done for mechanical eigenmodes of quarter wave superconducting resonators with operating frequency of 10⁶ MHz and 80 MHz. A possibility of frequency shift of mechanical modes in 106 MHz resonator has been estimated by application of the damper. We have optimized the damper's position for suppression efficiency. We have also compared the numerical and experimental results.

THPSC19	Influence of the Different Geometric Parameters of Superconducting Elliptical Cavities on the Multipactor	362
	M. Gusarova, I.I. Petrushina MEPhI, Moscow, Russia
	The results of numerical simulations of multipacting in the different superconducting elliptical cavities are presented. Question of influence of the aperture radius, equator shape, iris shape and frequency and electron trajectories for different geometrical parameters of elliptic structures are considered.

THPSC20	Multipactor in Elliptical Cavities 800 MHz	365
	M. Gusarova, I.I. Petrushina MEPhI, Moscow, Russia
	The studies of the multipacting discharge possibility in elliptic single-cell cavities at 800 MHz with three types of hifger order modes couplers were done. The ranges of the field gradients where the conditions for the occurrence of first order multipacting discharge in the equatorial region, as well as the HOM field levels were determined.

Paper

Title

Page

The Optimization of the Buncher at 145.2 MHz to Reduce Multipactor Effect

166

M. Gusarova, T. Kulevoy, I.I. Petrushina, A.S. Plastun, S.M. Polozov
MEPhI, Moscow, Russia
T. Kulevoy, A.S. Plastun
ITEP, Moscow, Russia

The results of the optimization of the cavity of the single gap buncher at 145.2 MHz to reduce multipacting effect are presented. Resonant voltages, impact energies and corresponding particle trajectories are obtained. The variants of design to reduce multipacting effect are considered.

WEPSB07

MultP-M Code Geometry Import Module Performance Optimization

169

M. Gusarova, S. Khudyakov, M.V. Lalayan
MEPhI, Moscow, Russia

The new possibilities of three-dimensional modeling program multipactor MultP-M are presented. On an example, consider an increase in the speed and accuracy of the calculation using a new algorithm for calculating the use of loading geometry format STL.

THPSC03

Study of Superconducting Accelerating Structures for Megawatt Proton Driver Linac

318

S.M. Polozov, K.A. Aliev, A.M. Fadeev, M. Gusarova, T. Kulevoy, M.V. Lalayan, N.P. Sobenin, O. Verjbitskiy
MEPhI, Moscow, Russia

Funding: This project was supported by the Ministry of Science and Education of Russia under contract No. 14.516.11.0084
The preliminary design of megawatt level proton accelerator-driver is carrying out by collaboration between Russian scientific centers MEPhI, ITEP, Kurchatov Institute. This project was supported in 2013 by the Ministry of Science and Education of Russia. The linac general layout includes SC Spoke-cavities at middle energy range and elliptical cavity at high energy one. The usage of QWR and/or HWR at 10-30 MeV was also discussed. Due to electrodynamics models of all structures types were designed and the electrodynamics characteristics were studied. QWR, HWQ and Spoke-cavities were proposed to operate on 324 MHz and elliptical cavities on 972 MHz. The main electrodynamics simulation results will present in report. The multipactor study results will also discussed.

THPSC05

Study of Possibility of 600-1000 MeV and 1 MW Proton Driver Linac Development in Russia

324

S.M. Polozov, A.E. Aksentyev, K.A. Aliev, I.A. Ashanin, Y.A. Bashmakov, A.A. Blinnikov, T.V. Bondarenko, A.N. Didenko, M.S. Dmitriyev, V.V. Dmitriyeva, V.S. Dyubkov, A.M. Fadeev, A. Fertman, M. Gusarova, A.A. Kalashnikova, V.I. Kaminsky, E. Khabibullina, Yu.D. Kliuchevskaia, A.D. Kolyaskin, T. Kulevoy, M.V. Lalayan, S.V. Matsievskiy, V.I. Rashchikov, A.V. Samoshin, E.A. Savin, Ya.V. Shashkov, A.Yu. Smirnov, N.P. Sobenin, S.E. Toporkov, O. Verjbitskiy, A.V. Ziiatdinova, V. Zvyagintsev
MEPhI, Moscow, Russia
P.N. Alekseev, V.A. Nevinnitsa
NRC, Moscow, Russia
V.F. Batyaev, G. Kropachev, D.A. Liakin, S.V. Rogozhkin, Y.E. Titarenko
ITEP, Moscow, Russia
S. Stark
INFN/LNL, Legnaro (PD), Italy

Funding: This project was supported by the Ministry of Science and Education of Russia under contract No. 14.516.11.0084
Alternative nuclear energetic's technologies as fast reactors and accelerating driven systems (ADS) are necessary to solve a number of problems as U-238 or thorium fuel reactor and nuclear wastes transmutation. ADS subcritical system should consist of megawatt-power proton accelerator, neutron producing target and breeder. A number of ADS projects are under development in EU, Japan, USA, China, S.Korea at present. Superconducting linacs or their complexes with high energy storage synchrotron are under design in main projects as a megawatt power proton beam driver. In Russian Federation the complex design for accelerator-driver was carried down more than ten years ago. The new approach to the ADS complex is now under development in framework of the project carried out by collaboration between Russian scientific centers MEPhI, ITEP, Kurchatov Institute. This project was supported in 2013 by the Ministry of Science and Education of Russia. A brief results observation for accelerator part of the project is presented in report. It includes accelerator-driver general layout, beam dynamics simulation, electrodynamics simulations of accelerating cavities and analysis of technological background in Russia.

THPSC18

Suppression of Mechanical Oscillations in Quarterwave 10⁶ MHz Resonator

359

M. Gusarova, I.I. Petrushina, I.V. Rybakov, Ya.V. Shashkov, Ya.V. Shashkov, V. Zvyagintsev
MEPhI, Moscow, Russia
V. Zvyagintsev
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

Analytical calculations and numerical simulations have been done for mechanical eigenmodes of quarter wave superconducting resonators with operating frequency of 10⁶ MHz and 80 MHz. A possibility of frequency shift of mechanical modes in 106 MHz resonator has been estimated by application of the damper. We have optimized the damper's position for suppression efficiency. We have also compared the numerical and experimental results.

THPSC19

Influence of the Different Geometric Parameters of Superconducting Elliptical Cavities on the Multipactor

362

M. Gusarova, I.I. Petrushina
MEPhI, Moscow, Russia

The results of numerical simulations of multipacting in the different superconducting elliptical cavities are presented. Question of influence of the aperture radius, equator shape, iris shape and frequency and electron trajectories for different geometrical parameters of elliptic structures are considered.

THPSC20

Multipactor in Elliptical Cavities 800 MHz

365

M. Gusarova, I.I. Petrushina
MEPhI, Moscow, Russia

The studies of the multipacting discharge possibility in elliptic single-cell cavities at 800 MHz with three types of hifger order modes couplers were done. The ranges of the field gradients where the conditions for the occurrence of first order multipacting discharge in the equatorial region, as well as the HOM field levels were determined.