RuPAC2016 - List of Keywords (impedance)

Paper	Title	Other Keywords	Page
TUPSA027	The Study of the Helical RF Resonator for the 300 keV Nitrogen Ion CW Implanter	ion, vacuum, simulation, rf-amplifier	270
	N.V. Avreline TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada P.G. Alexey, S.M. Polozov MEPhI, Moscow, Russia
	The helical RF resonator for the single charged 300 keV nitrogen ion CW implanter was designed, simulated in CST Microwave Studio and the results were experimentally verified. The current setup of the implanter is described as well as possible modifications to accelerate ions of other types. The results of the field distribution's RF measurements and the results of the high-power test are also presented.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA028	QWR resonator Cavities Electrodynamics Simulations for new Nuclotron-NICA Injector	cavity, simulation, linac, acceleration	273
	M. Gusarova, T. Kulevoy, M.V. Lalayan, S.M. Polozov, N.P. Sobenin, D.V. Surkov, S.A. Terekhov, S.E. Toporkov, V. Zvyagintsev MEPhI, Moscow, Russia A.V. Butenko, A.O. Sidorin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia V. Zvyagintsev TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	New linac-injector for Nuclotron-NICA is planned to consist of quarter-wave coaxial cavities (QWR) having velocities of ~0.07c and ~0.12c (beam energy from 5 to 17 MeV). These cavities are to be superconducting and operating at 162 MHz. Current results of the QWR cavities electrodynamics simulations and geometry optimizations are presented.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA029	High Power Solid State RF Generator for Neutral Beam Injector	controls, plasma, power-supply, neutral-beams	276
	E. Shubin, V.V. Kolmogorov BINP SB RAS, Novosibirsk, Russia A.S. Styuf NSU, Novosibirsk, Russia
	Neutral Beam Heating Injector of 1 MW beam power for the TCV tokamak (Lausanne, Switzerland) was developed in BINP. The plasma is formed in a plasma box with inductively coupled RF power at frequency about 4 MHz. Required RF power in the plasma box is up to 40 kW during the period of 2 seconds with 5 minutes intervals. Solid state RF generator with such capability has been developed in BINP. The generator has a modular structure with combining RF power of 16 identical modules. Output RF power of the generator is regulated by DC power supply voltage. At present Injector is working at TCV. Description of the RF generator design, main features and the test results are presented in the report.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA037	Powerfull RF Triode as Anode Modulator Vacuum Tube	vacuum, operation, cathode, DTL	294
	A.I. Kvasha, V.L. Serov RAS/INR, Moscow, Russia
	For 20 years modulator vacuum tube GMI-44A successfully operated in DTL RF system of INR Linac. The vacuum tube had been designed and manufactured at OKB "Swetlana" in the 70s-80s of the last century. The quantity of manufactured tubes - about 80, had allowed the accelerator operating till now. Manufacture of the tubes was stopped In the mid 80s. Attempts of the GMI-44A manufacture restoration or repair were unsuccessful ones. As it turned out, the only decision in the circumstances was using of 200 MHz powerful pulse triode GI-71A as modulator tube. The vacuum tubes GI-71A were installed for the last ten years in all output RF power amplifiers (PA) of INR Linac instead of RF pulse triode GI-54A. In the paper some problems appearing after modulator vacuum tube replacement are discussed.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA046	Experimental Analysis of Dipole Modes in Elliptical Cavity	cavity, simulation, experiment, dipole	313
	Ya.V. Shashkov, M.V. Lalayan, N.P. Sobenin MEPhI, Moscow, Russia A. Orlov NRNU, Moscow, Russia
	The experimental measurements of transverse shunt impedance for higher order modes TM110 and TE111 for S-band elliptical cavity were carried out. The experiments using dielectric and metallic spheres as perturbing objects and with ring probe were done.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB016	Coupled Bunch Instabilities in the Storage Rings	wakefield, storage-ring, electron, synchrotron	395
	A.S. Smygacheva, Y.A. Fomin, V. Korchuganov NRC, Moscow, Russia
	Funding: The reported study was funded by RFBR according to the research project No. 16-32-00335 mol_a. Coherent instabilities of the bunched beam are one of the reasons that limit a total beam current in the storage rings. Although there are solutions of this problem, the estimation and reduction of wake-fields influence on the longitudinal beam dynamics remain important things. In the article we return to the subject of coherent instabilities of the unevenly-filled bunches in the storage rings.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC049	Dielectric Chart as a Tool for Diagnosis of Dielectric Materials	diagnostics, dipole, operation, polarization	641
	V.A. Klemeshev, A.G. Karpov St. Petersburg State University, St. Petersburg, Russia
	One of the most informative diagnostic methods dielectric materials is the analysis of the complex permittivity depending on the frequency of the electric field. Dielectric chart is the dependence of the imaginary part of the complex permittivity of its real part. Thus, difference between the real dielectric chart from the reference or change it during the operation can be a means of diagnostics of dielectric materials. Dielectric chart in the classical theory of Debye is a semicircle with its center lying on the real axis. For solid dielectric the dielectric chart deviation from the semicircle can be quite large, but it still remains a circular arc. This deviation is characterized by parameter a (in the case of the Debye a=0). To clarify the physical meaning of the deviations of the experimental data on the Debye theory, expressed in the value of a, several possible causes have been considered: the effect hindered reorientation of dipoles, the effect of the non-sphericity of the molecules, the complex nature of viscosity. However, the main cause of deviations, in our opinion, is the availability of the distribution of relaxation times around a central relaxation time, in particular, due to defects in the sample. Gaussian distribution width increases rapidly with increasing a. In this paper we propose an algorithm for calculating a, allowing you to quickly determine the condition of the sample on a single parameter. Karpov A.G., Egorov N.V. An Automated dielectrometer. // Pribory i tehnika eksperimenta.- 1999.- 6.- P.63-67.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC052	The Longitudinal Broadband Impedance and Energy Spread Measurements at VEPP-4M	synchrotron, damping, scattering, electron	650
	V.M. Borin, V.A. Kiselev, G.Y. Kurkin, O.I. Meshkov, S.A. Nikitin, M.A. Skamarokha BINP SB RAS, Novosibirsk, Russia V.L. Dorokhov BINP, Novosibirsk, Russia
	The paper presents studies of the longitudinal broadband impedance of VEPP-4M and measurements of its bunch energy spread at different energies in range of 1.45 - 3.5 GeV. In order to measure the longitudinal bunch size at different currents we used PS-1/S1 streak camera with picosecond temporal resolution. Considering that influence of collective effects is negligible at low currents we determined bunch energy spread from its length at low currents. Collected bunch length data demonstrate microwave instability thresholds and potential well distortion lengthening. Potential well distortion was studied at 3 GeV and 3.5 GeV. Measured potential well distortion lengthening was used to estimate a value of the reactive part of the longitudinal impedance. Observed microwave instability thresholds was used to measure the value of broadband impedance. Measured value of the VEPP-4M is 7.9 ± 1.5 Ohm.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC055	Electrodynamic Characteristics of RF-Deflector for Bunch Shape Monitor	simulation, electron, cavity, insertion	659
	D.A. Chermoshentsev, A. Feschenko, S.A. Gavrilov RAS/INR, Moscow, Russia D.A. Chermoshentsev MIPT, Dolgoprudniy, Moscow Region, Russia D.A. Chermoshentsev Skoltech, Moscow, Russia
	Bunch shape monitors, based on a transverse RF-scanning of secondary electrons, are used for measurements of particles longitudinal distribution in bunches at different linear ion accelerators. The phase resolution of such monitors depends crucially on accuracy of fabrication and tuning of RF-deflector, thus preliminary simulations of its electrodynamic characteristics are of importance for subsequent commissioning of the monitor. Simulations of some basic operational electrodynamic parameters and results of experimental measurements are presented.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC060	The Longitudinal Distribution and Bunch Length Measurements at VEPP-2000 Collider	collider, cavity, electron, detector	673
	Yu. A. Rogovsky, E. Perevedentsev, V. Volkov, Yu.M. Zharinov BINP SB RAS, Novosibirsk, Russia
	The paper describes the bunch length measurement system for VEPP-2000 collider, equiped with optical analysers based on LI-602 dissector, which provides permanent measurements of the longitudinal beam profile. Potential well distorsion lengthening was measured at different bunch currents for the energies below 500 MeV. First measurements reveals the presence of microwave instabilty with turbulent emittance growth. The thresholds of these processes was used to estimate the values of reactive part of the longitudinal impedance. Measured energy loss factors was compared with computer simulations for the RF cavity. All results will be discussed and further estimations will be given.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC067	Coaxial Quarter Wavelength Impedance Converter for Coupling Control of Triode Cavity	cavity, coupling, electron, gun	689
	K. Torgasin, T. Kii, K. Masuda, K. Morita, K. Nagasaki, H. Ohgaki, S. Suphakul, H. Zen Kyoto University, Kyoto, Japan
	A quarter wavelength coaxial cavity has been developed for triode-type thermionic RF gun. The triode-type RF gun is a modification of present 4.5 cell thermionic RF gun of KU-FEL (Kyoto University Free Electron Laser) facility with aim to mitigate the back'bombardment effect. Thereby a coaxial quarter wavelength cavity with cathode material shall be added to the main 4.5 cell accelerating body. The coaxial cavity has the function of pre-buncher to control the injection phase and power of electron bunches into the main accelerating body. Transient tests have demonstrated the quarter wavelength cavity to be undercoupled. However, for operation at high beam loading conditions overcoupled conditions are required. In order to control the coupling we have developed an external air side coaxial quarter wavelength impedance converter. The design of the impedance converter enables operation at high RF power (<20 kV) without changing the cavity geometry. In this work we present our design and performance of quarter wavelength impedance converter as applied to quarter wavelength triode cavity. K. Torgasin et al., Cold Test of the Coaxial Cavity for Thermionic Triode Type RF Gun, in Proc. IPAC, 2013, pp.324-326.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC073	Development of the Hardware-Software Complex PIRS-5 for Field Measurements in Accelerating Structures	cavity, software, hardware, controls	702
	G.S. Pomogaybo, M.V. Lalayan, S.E. Toporkov MEPhI, Moscow, Russia
	Hardware-software complex "PIRS-5" was developed to make measurements in warm accelerating structures. The idea was to create full-automatic measuring system, which can measure electrical field at the bead position with non-resonant and resonant pull techniques. PIRS-5 has postprocessor, which calculate electrical component from the frequency, reflection or transmission coefficient, shunt and effective shunt impedance. This work describes the construction of this complex, its mathematical part and possible future modifications.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC074	Longitudinal Beam Distribution Measurements in Damping Ring of VEPP-5 Injection Complex	damping, injection, electron, operation	705
	V.V. Balakin, O. Anchugov, D.E. Berkaev, F.A. Emanov, G.Y. Kurkin, O.I. Meshkov BINP SB RAS, Novosibirsk, Russia V.L. Dorokhov BINP, Novosibirsk, Russia
	Injection Complex VEPP-5 was turned into operation in the end of 2015 in the Budker Institute of Nuclear Physics (Novosibirsk, Russia). The main task of the facility is production, acceleration and transportation of high intensity electron and positron beams for two BINP's colliders. Now, VEPP-5 successfully delivers electron and positron beams to the collider VEPP-2000 and ready to start operation with the acceleration complex VEPP-4M. Beam diagnostics issues are very important for VEPP-5 facility tuning during the operation. Longitudinal beam diagnostic based on synchrotron radiation in the VEPP-5 Damping Ring is presented in the article. Equipment operation principle, main measurement results and future prospects are presented in this paper.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

TUPSA027

The Study of the Helical RF Resonator for the 300 keV Nitrogen Ion CW Implanter

ion, vacuum, simulation, rf-amplifier

270

N.V. Avreline
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
P.G. Alexey, S.M. Polozov
MEPhI, Moscow, Russia

The helical RF resonator for the single charged 300 keV nitrogen ion CW implanter was designed, simulated in CST Microwave Studio and the results were experimentally verified. The current setup of the implanter is described as well as possible modifications to accelerate ions of other types. The results of the field distribution's RF measurements and the results of the high-power test are also presented.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA028

QWR resonator Cavities Electrodynamics Simulations for new Nuclotron-NICA Injector

cavity, simulation, linac, acceleration

273

M. Gusarova, T. Kulevoy, M.V. Lalayan, S.M. Polozov, N.P. Sobenin, D.V. Surkov, S.A. Terekhov, S.E. Toporkov, V. Zvyagintsev
MEPhI, Moscow, Russia
A.V. Butenko, A.O. Sidorin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia
V. Zvyagintsev
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

New linac-injector for Nuclotron-NICA is planned to consist of quarter-wave coaxial cavities (QWR) having velocities of ~0.07c and ~0.12c (beam energy from 5 to 17 MeV). These cavities are to be superconducting and operating at 162 MHz. Current results of the QWR cavities electrodynamics simulations and geometry optimizations are presented.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA029

High Power Solid State RF Generator for Neutral Beam Injector

controls, plasma, power-supply, neutral-beams

276

E. Shubin, V.V. Kolmogorov
BINP SB RAS, Novosibirsk, Russia
A.S. Styuf
NSU, Novosibirsk, Russia

Neutral Beam Heating Injector of 1 MW beam power for the TCV tokamak (Lausanne, Switzerland) was developed in BINP. The plasma is formed in a plasma box with inductively coupled RF power at frequency about 4 MHz. Required RF power in the plasma box is up to 40 kW during the period of 2 seconds with 5 minutes intervals. Solid state RF generator with such capability has been developed in BINP. The generator has a modular structure with combining RF power of 16 identical modules. Output RF power of the generator is regulated by DC power supply voltage. At present Injector is working at TCV. Description of the RF generator design, main features and the test results are presented in the report.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA037

Powerfull RF Triode as Anode Modulator Vacuum Tube

vacuum, operation, cathode, DTL

294

A.I. Kvasha, V.L. Serov
RAS/INR, Moscow, Russia

For 20 years modulator vacuum tube GMI-44A successfully operated in DTL RF system of INR Linac. The vacuum tube had been designed and manufactured at OKB "Swetlana" in the 70s-80s of the last century. The quantity of manufactured tubes - about 80, had allowed the accelerator operating till now. Manufacture of the tubes was stopped In the mid 80s. Attempts of the GMI-44A manufacture restoration or repair were unsuccessful ones. As it turned out, the only decision in the circumstances was using of 200 MHz powerful pulse triode GI-71A as modulator tube. The vacuum tubes GI-71A were installed for the last ten years in all output RF power amplifiers (PA) of INR Linac instead of RF pulse triode GI-54A. In the paper some problems appearing after modulator vacuum tube replacement are discussed.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSA046

Experimental Analysis of Dipole Modes in Elliptical Cavity

cavity, simulation, experiment, dipole

313

Ya.V. Shashkov, M.V. Lalayan, N.P. Sobenin
MEPhI, Moscow, Russia
A. Orlov
NRNU, Moscow, Russia

The experimental measurements of transverse shunt impedance for higher order modes TM110 and TE111 for S-band elliptical cavity were carried out. The experiments using dielectric and metallic spheres as perturbing objects and with ring probe were done.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB016

Coupled Bunch Instabilities in the Storage Rings

wakefield, storage-ring, electron, synchrotron

395

A.S. Smygacheva, Y.A. Fomin, V. Korchuganov
NRC, Moscow, Russia

Funding: The reported study was funded by RFBR according to the research project No. 16-32-00335 mol_a.
Coherent instabilities of the bunched beam are one of the reasons that limit a total beam current in the storage rings. Although there are solutions of this problem, the estimation and reduction of wake-fields influence on the longitudinal beam dynamics remain important things. In the article we return to the subject of coherent instabilities of the unevenly-filled bunches in the storage rings.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC049

Dielectric Chart as a Tool for Diagnosis of Dielectric Materials

diagnostics, dipole, operation, polarization

641

V.A. Klemeshev, A.G. Karpov
St. Petersburg State University, St. Petersburg, Russia

One of the most informative diagnostic methods dielectric materials is the analysis of the complex permittivity depending on the frequency of the electric field*. Dielectric chart is the dependence of the imaginary part of the complex permittivity of its real part. Thus, difference between the real dielectric chart from the reference or change it during the operation can be a means of diagnostics of dielectric materials. Dielectric chart in the classical theory of Debye is a semicircle with its center lying on the real axis. For solid dielectric the dielectric chart deviation from the semicircle can be quite large, but it still remains a circular arc. This deviation is characterized by parameter a (in the case of the Debye a=0). To clarify the physical meaning of the deviations of the experimental data on the Debye theory, expressed in the value of a, several possible causes have been considered: the effect hindered reorientation of dipoles, the effect of the non-sphericity of the molecules, the complex nature of viscosity. However, the main cause of deviations, in our opinion, is the availability of the distribution of relaxation times around a central relaxation time, in particular, due to defects in the sample. Gaussian distribution width increases rapidly with increasing a. In this paper we propose an algorithm for calculating a, allowing you to quickly determine the condition of the sample on a single parameter.
* Karpov A.G., Egorov N.V. An Automated dielectrometer. // Pribory i tehnika eksperimenta.- 1999.- 6.- P.63-67.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC052

The Longitudinal Broadband Impedance and Energy Spread Measurements at VEPP-4M

synchrotron, damping, scattering, electron

650

V.M. Borin, V.A. Kiselev, G.Y. Kurkin, O.I. Meshkov, S.A. Nikitin, M.A. Skamarokha
BINP SB RAS, Novosibirsk, Russia
V.L. Dorokhov
BINP, Novosibirsk, Russia

The paper presents studies of the longitudinal broadband impedance of VEPP-4M and measurements of its bunch energy spread at different energies in range of 1.45 - 3.5 GeV. In order to measure the longitudinal bunch size at different currents we used PS-1/S1 streak camera with picosecond temporal resolution. Considering that influence of collective effects is negligible at low currents we determined bunch energy spread from its length at low currents. Collected bunch length data demonstrate microwave instability thresholds and potential well distortion lengthening. Potential well distortion was studied at 3 GeV and 3.5 GeV. Measured potential well distortion lengthening was used to estimate a value of the reactive part of the longitudinal impedance. Observed microwave instability thresholds was used to measure the value of broadband impedance. Measured value of the VEPP-4M is 7.9 ± 1.5 Ohm.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC055

Electrodynamic Characteristics of RF-Deflector for Bunch Shape Monitor

simulation, electron, cavity, insertion

659

D.A. Chermoshentsev, A. Feschenko, S.A. Gavrilov
RAS/INR, Moscow, Russia
D.A. Chermoshentsev
MIPT, Dolgoprudniy, Moscow Region, Russia
D.A. Chermoshentsev
Skoltech, Moscow, Russia

Bunch shape monitors, based on a transverse RF-scanning of secondary electrons, are used for measurements of particles longitudinal distribution in bunches at different linear ion accelerators. The phase resolution of such monitors depends crucially on accuracy of fabrication and tuning of RF-deflector, thus preliminary simulations of its electrodynamic characteristics are of importance for subsequent commissioning of the monitor. Simulations of some basic operational electrodynamic parameters and results of experimental measurements are presented.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC060

The Longitudinal Distribution and Bunch Length Measurements at VEPP-2000 Collider

collider, cavity, electron, detector

673

Yu. A. Rogovsky, E. Perevedentsev, V. Volkov, Yu.M. Zharinov
BINP SB RAS, Novosibirsk, Russia

The paper describes the bunch length measurement system for VEPP-2000 collider, equiped with optical analysers based on LI-602 dissector, which provides permanent measurements of the longitudinal beam profile. Potential well distorsion lengthening was measured at different bunch currents for the energies below 500 MeV. First measurements reveals the presence of microwave instabilty with turbulent emittance growth. The thresholds of these processes was used to estimate the values of reactive part of the longitudinal impedance. Measured energy loss factors was compared with computer simulations for the RF cavity. All results will be discussed and further estimations will be given.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC067

Coaxial Quarter Wavelength Impedance Converter for Coupling Control of Triode Cavity

cavity, coupling, electron, gun

689

K. Torgasin, T. Kii, K. Masuda, K. Morita, K. Nagasaki, H. Ohgaki, S. Suphakul, H. Zen
Kyoto University, Kyoto, Japan

A quarter wavelength coaxial cavity has been developed for triode-type thermionic RF gun. The triode-type RF gun is a modification of present 4.5 cell thermionic RF gun of KU-FEL (Kyoto University Free Electron Laser) facility with aim to mitigate the back'bombardment effect. Thereby a coaxial quarter wavelength cavity with cathode material shall be added to the main 4.5 cell accelerating body. The coaxial cavity has the function of pre-buncher to control the injection phase and power of electron bunches into the main accelerating body*. Transient tests have demonstrated the quarter wavelength cavity to be undercoupled. However, for operation at high beam loading conditions overcoupled conditions are required. In order to control the coupling we have developed an external air side coaxial quarter wavelength impedance converter. The design of the impedance converter enables operation at high RF power (<20 kV) without changing the cavity geometry. In this work we present our design and performance of quarter wavelength impedance converter as applied to quarter wavelength triode cavity.
* K. Torgasin et al., Cold Test of the Coaxial Cavity for Thermionic Triode Type RF Gun, in Proc. IPAC, 2013, pp.324-326.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC073

Development of the Hardware-Software Complex PIRS-5 for Field Measurements in Accelerating Structures

cavity, software, hardware, controls

702

G.S. Pomogaybo, M.V. Lalayan, S.E. Toporkov
MEPhI, Moscow, Russia

Hardware-software complex "PIRS-5" was developed to make measurements in warm accelerating structures. The idea was to create full-automatic measuring system, which can measure electrical field at the bead position with non-resonant and resonant pull techniques. PIRS-5 has postprocessor, which calculate electrical component from the frequency, reflection or transmission coefficient, shunt and effective shunt impedance. This work describes the construction of this complex, its mathematical part and possible future modifications.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPSC074

Longitudinal Beam Distribution Measurements in Damping Ring of VEPP-5 Injection Complex

damping, injection, electron, operation

705

V.V. Balakin, O. Anchugov, D.E. Berkaev, F.A. Emanov, G.Y. Kurkin, O.I. Meshkov
BINP SB RAS, Novosibirsk, Russia
V.L. Dorokhov
BINP, Novosibirsk, Russia

Injection Complex VEPP-5 was turned into operation in the end of 2015 in the Budker Institute of Nuclear Physics (Novosibirsk, Russia). The main task of the facility is production, acceleration and transportation of high intensity electron and positron beams for two BINP's colliders. Now, VEPP-5 successfully delivers electron and positron beams to the collider VEPP-2000 and ready to start operation with the acceleration complex VEPP-4M. Beam diagnostics issues are very important for VEPP-5 facility tuning during the operation. Longitudinal beam diagnostic based on synchrotron radiation in the VEPP-5 Damping Ring is presented in the article. Equipment operation principle, main measurement results and future prospects are presented in this paper.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)