RuPAC2014 - List of Keywords (quadrupole)

Paper	Title	Other Keywords	Page
TUPSA13	The Interactive Computer Environment for Designing and Tuning of Charged Particle Beams Transport Channels	synchrotron, focusing, controls, operation	63
	Y.A. Bashmakov LPI, Moscow, Russia G.P. Averyanov, V.A. Budkin, V.V. Dmitriyeva, I.O. Osadchuk MEPhI, Moscow, Russia
	This paper considers the application package that simulates transport channel of relativistic charged particles. The package provides an interactive mode for the user. It is possible to observe the main parameters of the beam crossing the channel on the PC screen such as envelope and cross-section of the beam at different sections of the channel while changing the main control parameters of the real channel. Enabling of procedures of mathematical programming provides express optimization of control parameters of the channel. The designed package is compact, has a modular structure and can be easily adapted to different software platforms. MATLAB integrated environment is used as instrumental environment, which has a freeware version of this system - SCILAB. Package testing was carried out on the electron synchrotron "Pakhra" during the recalibration of the channel of the accelerator working in different modes, which are determined by conducted experiments.

WEPSB25	PRIOR Proton Microscope	proton, target, experiment, vacuum	214
	D. Varentsov, P.M. Lang, M.E. Rodionova, L. Shestov, K. Weyrich GSI, Darmstadt, Germany A.V. Bakhmutova, A.V. Bogdanov, A. Golubev, A.V. Kantsyrev, N.V. Markov, V.A. Panyushkin, A.I. Semennikov, V. Skachkov ITEP, Moscow, Russia C.W. Barnes, F.G. Mariam, F.E. Merrill, C. Wilde LANL, Los Alamos, New Mexico, USA S.V. Efimov, Y. Krasik, O. Oleg Technion, Haifa, Israel A. Golubev MEPhI, Moscow, Russia S. Udrea TU Darmstadt, Darmstadt, Germany A.N. Zubareva IPCP, Chernogolovka, Moscow region, Russia
	Funding: Joint Helmholtz-ROSATOM FAIR-Russia Research Centre (HGF-IVF-IK-Ru-002) The new proton radiography facility PRIOR* (Proton microscope for FAIR) was developed at SIS-18 accelerator at GSI (Darmstadt, Germany). PRIOR setup is designed for measurement, with high spatial resolution up to 10 mkm, of density distribution of static and dynamic objects by using a proton beam with energy up to 4.5 GeV. The magnetic system of the PRIOR beam-line consists of two sections. The first, matching section, contains electromagnetic-quadruple lenses and provides formation of a proton beam for the objects imaging task (beam size, angular distribution). The second section is a magnification (K ~4) section that consists of four Permanent Magnet Quadruples (PMQ) lenses. Tungsten collimators, installed at central plane of magnification section, provides regulation of contrast of the proton-radiographic images. Investigated object installed between first and second section. The registration system for static experiments consists of CsI scintillator and plastic scintillator (Bicron BC-412) for dynamic one with two types of intensified CCD cameras: PCO DiMAX and PCO DicamPro. In the first experiments with static objects with 3.6 Gev proton, was demonstrated a spatial resolution of 30 mkm. Dynamic commissioning was performed with target based on underwater electrical wires explosion with electrical pulse with current amplitude of ~200 kA and time duration of few microseconds. * Merrill F.E. et al., Proton microscopy at FAIR, AIP Conf. Proc. 1195, 2009, p.667

WEPSB33	Development of the Equipment for the Prototype of a Complex of Radiotherapy at the Nuclotron-M	emittance, target, beam-transport, experiment	234
	I.P. Yudin JINR/VBLHEP, Dubna, Moscow region, Russia S.I. Tyutyunnikov JINR, Dubna, Moscow Region, Russia
	The report deals with the construction of the carbon beam transport line for biomedical research at the Nuclotron accelerator complex, JINR, Dubna. We have studied the scheme and modes of magneto-optical elements of the channel. Used electronics described. We are discussed the compilation and realization of the plan of treating a tumor located at a depth up to 30 cm. Choice of beam scanning schemes and their optimization are shown.

THZ03	Production of Superconducting Equipment at IHEP	dipole, cryogenics, solenoid, superconductivity	301
	L. Tkachenko, A.I. Ageev, I. Bogdanov, E. Kashtanov, S. Kozub, P.A. Shcherbakov, L.S. Shirshov, I. Slabodchikov, V. Sytnik, S. Zinchenko IHEP, Moscow Region, Russia
	The report overviews the recent SC-related R&D and production activity at IHEP. The scope of the paper extends over the items to follow. Two superconducting magnetic systems of Electron Lens for the Tevatron collider were developed, manufactured and successfully brought into operation. 42 cryogenic electrical feed boxes of various types for the Large Hadron Collider were developed, produced and commissioned. Results of development of fast-cycling SC magnets for the FAIR project are discussed. Operational experience acquired with the largest in Russia cryogenic system for cooling with a superfluid helium of SC RF separator for the beam transfer line #21from the U-70 machine is presented. Test-and-trial results with HTS current leads and dipole magnet employing Bi2223 as well as racetrack coils made of second-generation HTS are reviewed.
	Slides THZ03 [0.823 MB]

THPSC02	Geometry of Quadrupole Magnet for the U-3.5 Accelerator in the OMEGA Project	multipole, proton, hadron, synchrotron	315
	L. Tkachenko, S. Kozub, P.A. Shcherbakov IHEP, Moscow Region, Russia
	Accelerating complex of intensive beams of charged particles (project Omega) is being developed at IHEP. The main part of this complex is 3.5 GeV ring accelerator. The basic parameters of the quadrupole magnet for this ring are: 5.564 T/m central gradient in the 10².9 mm radius of the "good field"; the injection gradient is 1.222 T/m; the gradient ramp rate is 334 T/m/s. Different profiles of the poles were considered for the purpose of selecting the most optimal 2D and 3D geometries of the magnet. The basic parameters of the optimal geometries are presented.

THPSC13	Horizontal Emittance Regulation at SIBERIA-2	injection, emittance, betatron, sextupole	347
	A.G. Valentinov, V. Korchuganov, Y.V. Krylov, Y.L. Yupinov NRC, Moscow, Russia
	Synchrotron radiation (SR) brightness is the most valuable parameter of every SR light source. It depends greatly on horizontal emittance of an electron beam. That's why all modern SR light sources have designed emittance of several nanometers. A horizontal emittance of Siberia-2 now equals to 98 nm. It can be decreased by two ways. First way is to find another working point (betatron tunes) with lower emittance. Maximal possible current values of existing power supplies must be taken into account. Injection efficiency may become worse because of smaller dynamic aperture due to stronger sextupoles. Second way is to rebuild magnetic structure keeping the same betatron tunes. Advantages of this method are good injection efficiency and proved energy ramping process. Modification of the magnetic structure may be done at high energy with more stable electron beam. But the second way is not allowed to reach as lower emittance level as in the first way. Theoretical and practical aspects of these two ways are described in the report. Magnetic structures with dispersion-free straight sections and smooth horizontal dispersion function are presented. Also structure with higher emittance is described in order to reach higher injection efficiency.

THPSC14	Electron Emission and Trapping in Non-Uniform Fields of Magnet Structure and Insertion Devices at SR Source Siberia-2	electron, storage-ring, vacuum, wiggler	350
	V.I. Moiseev, V. Korchuganov, N.V. Smolyakov NRC, Moscow, Russia
	In vacuum chamber of SR source, scattered photons provide high intensity flows of photo emitted electrons along the magnetic fields lines. The unperturbed electrons reach the opposite walls. The relativistic bunches influence the trajectories of low energy electrons. These electrons can be trapped by non-uniform magnetic field. The low energy electron distributions change the operating settings of the storage ring. For Siberia-2 case, the low energy electron densities are evaluated both in quadrupole lenses and in superconducting wiggler on 7.5 T field. The qualitative description of the trapped electrons behavior was developed. In calculations, the analitical solution was obtained and used for estimations of the single impact of relativistic bunch.

THPSC17	Higher Order Modes Damping for 9-cell Structure with Modified Drift Tubes	HOM, cavity, damping, dipole	356
	Ya.V. Shashkov, A.A. Mitrofanov, N.P. Sobenin MEPhI, Moscow, Russia V. Zvyagintsev TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	Funding: Research supported by RFBR grant 13-02-00562/14 This paper is focused on HOM damping in 9-cell superconducting cavities. We are considering HOM propagation outside from the cavity ridged and fluted drift tubes. The analysis of the influence of the parameters of the drift tube on the HOM damping was conducted. The considered methods were analysed and compared.

FRCA01	Cooling Storage Ring CR of the FAIR Facility - Status and Perspectives	kicker, injection, lattice, antiproton	456
	Yu. A. Rogovsky, D.E. Berkaev, A.S. Kasaev, E.S. Kazantseva, I. Koop, A.A. Krasnov, A.V. Semenov, P.Yu. Shatunov, D.B. Shwartz, A.A. Starostenko BINP SB RAS, Novosibirsk, Russia U. Blell, C. Dimopoulou, A. Dolinskyy, O.E. Gorda, U. Laier, H. Leibrock, S.A. Litvinov, I. Schurig, U. Weinrich GSI, Darmstadt, Germany Yu. A. Rogovsky NSU, Novosibirsk, Russia
	The Collector Ring (CR) is a wide aperture storage ring of the FAIR international facility (Darmstadt, Germany) dedicated to perform the stochastic precooling of secondary particles, rare isotopes or antiprotons. BINP (Novosibirsk) takes responsibility on the design and construction of almost all systems of the CR. The project status, preliminary design of main systems and results of the modelling of beam dynamics are presented.
	Slides FRCA01 [2.060 MB]

Paper

Title

Other Keywords

Page

TUPSA13

The Interactive Computer Environment for Designing and Tuning of Charged Particle Beams Transport Channels

synchrotron, focusing, controls, operation

63

Y.A. Bashmakov
LPI, Moscow, Russia
G.P. Averyanov, V.A. Budkin, V.V. Dmitriyeva, I.O. Osadchuk
MEPhI, Moscow, Russia

This paper considers the application package that simulates transport channel of relativistic charged particles. The package provides an interactive mode for the user. It is possible to observe the main parameters of the beam crossing the channel on the PC screen such as envelope and cross-section of the beam at different sections of the channel while changing the main control parameters of the real channel. Enabling of procedures of mathematical programming provides express optimization of control parameters of the channel. The designed package is compact, has a modular structure and can be easily adapted to different software platforms. MATLAB integrated environment is used as instrumental environment, which has a freeware version of this system - SCILAB. Package testing was carried out on the electron synchrotron "Pakhra" during the recalibration of the channel of the accelerator working in different modes, which are determined by conducted experiments.

WEPSB25

PRIOR Proton Microscope

proton, target, experiment, vacuum

214

D. Varentsov, P.M. Lang, M.E. Rodionova, L. Shestov, K. Weyrich
GSI, Darmstadt, Germany
A.V. Bakhmutova, A.V. Bogdanov, A. Golubev, A.V. Kantsyrev, N.V. Markov, V.A. Panyushkin, A.I. Semennikov, V. Skachkov
ITEP, Moscow, Russia
C.W. Barnes, F.G. Mariam, F.E. Merrill, C. Wilde
LANL, Los Alamos, New Mexico, USA
S.V. Efimov, Y. Krasik, O. Oleg
Technion, Haifa, Israel
A. Golubev
MEPhI, Moscow, Russia
S. Udrea
TU Darmstadt, Darmstadt, Germany
A.N. Zubareva
IPCP, Chernogolovka, Moscow region, Russia

Funding: Joint Helmholtz-ROSATOM FAIR-Russia Research Centre (HGF-IVF-IK-Ru-002)
The new proton radiography facility PRIOR* (Proton microscope for FAIR) was developed at SIS-18 accelerator at GSI (Darmstadt, Germany). PRIOR setup is designed for measurement, with high spatial resolution up to 10 mkm, of density distribution of static and dynamic objects by using a proton beam with energy up to 4.5 GeV. The magnetic system of the PRIOR beam-line consists of two sections. The first, matching section, contains electromagnetic-quadruple lenses and provides formation of a proton beam for the objects imaging task (beam size, angular distribution). The second section is a magnification (K ~4) section that consists of four Permanent Magnet Quadruples (PMQ) lenses. Tungsten collimators, installed at central plane of magnification section, provides regulation of contrast of the proton-radiographic images. Investigated object installed between first and second section. The registration system for static experiments consists of CsI scintillator and plastic scintillator (Bicron BC-412) for dynamic one with two types of intensified CCD cameras: PCO DiMAX and PCO DicamPro. In the first experiments with static objects with 3.6 Gev proton, was demonstrated a spatial resolution of 30 mkm. Dynamic commissioning was performed with target based on underwater electrical wires explosion with electrical pulse with current amplitude of ~200 kA and time duration of few microseconds.
* Merrill F.E. et al., Proton microscopy at FAIR, AIP Conf. Proc. 1195, 2009, p.667

WEPSB33

Development of the Equipment for the Prototype of a Complex of Radiotherapy at the Nuclotron-M

emittance, target, beam-transport, experiment

234

I.P. Yudin
JINR/VBLHEP, Dubna, Moscow region, Russia
S.I. Tyutyunnikov
JINR, Dubna, Moscow Region, Russia

The report deals with the construction of the carbon beam transport line for biomedical research at the Nuclotron accelerator complex, JINR, Dubna. We have studied the scheme and modes of magneto-optical elements of the channel. Used electronics described. We are discussed the compilation and realization of the plan of treating a tumor located at a depth up to 30 cm. Choice of beam scanning schemes and their optimization are shown.

THZ03

Production of Superconducting Equipment at IHEP

dipole, cryogenics, solenoid, superconductivity

301

L. Tkachenko, A.I. Ageev, I. Bogdanov, E. Kashtanov, S. Kozub, P.A. Shcherbakov, L.S. Shirshov, I. Slabodchikov, V. Sytnik, S. Zinchenko
IHEP, Moscow Region, Russia

The report overviews the recent SC-related R&D and production activity at IHEP. The scope of the paper extends over the items to follow. Two superconducting magnetic systems of Electron Lens for the Tevatron collider were developed, manufactured and successfully brought into operation. 42 cryogenic electrical feed boxes of various types for the Large Hadron Collider were developed, produced and commissioned. Results of development of fast-cycling SC magnets for the FAIR project are discussed. Operational experience acquired with the largest in Russia cryogenic system for cooling with a superfluid helium of SC RF separator for the beam transfer line #21from the U-70 machine is presented. Test-and-trial results with HTS current leads and dipole magnet employing Bi2223 as well as racetrack coils made of second-generation HTS are reviewed.

Slides THZ03 [0.823 MB]

THPSC02

Geometry of Quadrupole Magnet for the U-3.5 Accelerator in the OMEGA Project

multipole, proton, hadron, synchrotron

315

L. Tkachenko, S. Kozub, P.A. Shcherbakov
IHEP, Moscow Region, Russia

Accelerating complex of intensive beams of charged particles (project Omega) is being developed at IHEP. The main part of this complex is 3.5 GeV ring accelerator. The basic parameters of the quadrupole magnet for this ring are: 5.564 T/m central gradient in the 10².9 mm radius of the "good field"; the injection gradient is 1.222 T/m; the gradient ramp rate is 334 T/m/s. Different profiles of the poles were considered for the purpose of selecting the most optimal 2D and 3D geometries of the magnet. The basic parameters of the optimal geometries are presented.

THPSC13

Horizontal Emittance Regulation at SIBERIA-2

injection, emittance, betatron, sextupole

347

A.G. Valentinov, V. Korchuganov, Y.V. Krylov, Y.L. Yupinov
NRC, Moscow, Russia

Synchrotron radiation (SR) brightness is the most valuable parameter of every SR light source. It depends greatly on horizontal emittance of an electron beam. That's why all modern SR light sources have designed emittance of several nanometers. A horizontal emittance of Siberia-2 now equals to 98 nm. It can be decreased by two ways. First way is to find another working point (betatron tunes) with lower emittance. Maximal possible current values of existing power supplies must be taken into account. Injection efficiency may become worse because of smaller dynamic aperture due to stronger sextupoles. Second way is to rebuild magnetic structure keeping the same betatron tunes. Advantages of this method are good injection efficiency and proved energy ramping process. Modification of the magnetic structure may be done at high energy with more stable electron beam. But the second way is not allowed to reach as lower emittance level as in the first way. Theoretical and practical aspects of these two ways are described in the report. Magnetic structures with dispersion-free straight sections and smooth horizontal dispersion function are presented. Also structure with higher emittance is described in order to reach higher injection efficiency.

THPSC14

Electron Emission and Trapping in Non-Uniform Fields of Magnet Structure and Insertion Devices at SR Source Siberia-2

electron, storage-ring, vacuum, wiggler

350

V.I. Moiseev, V. Korchuganov, N.V. Smolyakov
NRC, Moscow, Russia

In vacuum chamber of SR source, scattered photons provide high intensity flows of photo emitted electrons along the magnetic fields lines. The unperturbed electrons reach the opposite walls. The relativistic bunches influence the trajectories of low energy electrons. These electrons can be trapped by non-uniform magnetic field. The low energy electron distributions change the operating settings of the storage ring. For Siberia-2 case, the low energy electron densities are evaluated both in quadrupole lenses and in superconducting wiggler on 7.5 T field. The qualitative description of the trapped electrons behavior was developed. In calculations, the analitical solution was obtained and used for estimations of the single impact of relativistic bunch.

THPSC17

Higher Order Modes Damping for 9-cell Structure with Modified Drift Tubes

HOM, cavity, damping, dipole

356

Ya.V. Shashkov, A.A. Mitrofanov, N.P. Sobenin
MEPhI, Moscow, Russia
V. Zvyagintsev
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

Funding: Research supported by RFBR grant 13-02-00562/14
This paper is focused on HOM damping in 9-cell superconducting cavities. We are considering HOM propagation outside from the cavity ridged and fluted drift tubes. The analysis of the influence of the parameters of the drift tube on the HOM damping was conducted. The considered methods were analysed and compared.

FRCA01

Cooling Storage Ring CR of the FAIR Facility - Status and Perspectives

kicker, injection, lattice, antiproton

456

Yu. A. Rogovsky, D.E. Berkaev, A.S. Kasaev, E.S. Kazantseva, I. Koop, A.A. Krasnov, A.V. Semenov, P.Yu. Shatunov, D.B. Shwartz, A.A. Starostenko
BINP SB RAS, Novosibirsk, Russia
U. Blell, C. Dimopoulou, A. Dolinskyy, O.E. Gorda, U. Laier, H. Leibrock, S.A. Litvinov, I. Schurig, U. Weinrich
GSI, Darmstadt, Germany
Yu. A. Rogovsky
NSU, Novosibirsk, Russia

The Collector Ring (CR) is a wide aperture storage ring of the FAIR international facility (Darmstadt, Germany) dedicated to perform the stochastic precooling of secondary particles, rare isotopes or antiprotons. BINP (Novosibirsk) takes responsibility on the design and construction of almost all systems of the CR. The project status, preliminary design of main systems and results of the modelling of beam dynamics are presented.

Slides FRCA01 [2.060 MB]