RuPAC2021 - List of Keywords (gun)

Paper	Title	Other Keywords	Page
MOPSA08	Beam Dynamics Simulation in a Linear Electron Accelerator - Injector for the 4th Generation Specialized Synchrotron Radiation Source USSR	simulation, linac, injection, cathode	149
	I.A. Ashanin, Yu.D. Kliuchevskaia, S.M. Polozov, A.I. Pronikov MEPhI, Moscow, Russia I.A. Ashanin, S.M. Polozov, A.I. Pronikov NRC, Moscow, Russia
	USSR project (Ultimate Source of Synchrotron Radiation, 4th generation synchrotron light source) is being developed in the NRC «Kurchatov Institute». This Light Source will include both storage ring and soft FEL (Free Electron Laser) and one linac with an energyof 6 GeV, which is planned to be used both for beam injection into storage ring (top-up injection) and as a high-brightness bunch driver for FEL. It is suggested to use two front-ends in this linac: RF-gun with thermionic cathode with adiabatic buncher for injection into storage ring and RF-gun with photocathode will use to generate a bunch train for FEL. The purpose of this work was to development a general layout of the top-up linac with the aim of minimize of the beam energy spread and transverse emittance at the exit and analysis the front-to-end beam dynamics in this linear accelerator.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA08
About •	Received ※ 29 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 09 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUB04	Development of the Electron Cooling System for NICA Collider	electron, high-voltage, solenoid, collider	48
	M.I. Bryzgunov, A.M. Batrakov, E.A. Bekhtenev, O.V. Belikov, A.V. Bubley, V.A. Chekavinskiy, A.P. Denisov, M.G. Fedotov, A.D. Goncharov, K. Gorchakov, V.C. Gosteyev, I.A. Gusev, I.V. Ilyin, A.V. Ivanov, G.V. Karpov, M.N. Kondaurov, N.S. Kremnev, V.M. Panasyuk, V.V. Parkhomchuk, D.N. Pureskin, A.A. Putmakov, V.B. Reva, D.V. Senkov, K.S. Shtro, D.N. Skorobogatov, R.V. Vakhrushev, A.A. Zharikov BINP SB RAS, Novosibirsk, Russia E.A. Bekhtenev, A.V. Ivanov, N.S. Kremnev, V.B. Reva NSU, Novosibirsk, Russia
	The high voltage electron cooling system for the NICA collider is now under development in the Budker Institute of Nuclear Physics (Russia). The aim of the cooler is to increase ion beams intencity during accumulation and to decrease both longitudinal and transverse emmitances of colliding beams during experiment in order to increase luminosity. Status of its development and results of tests of the cooler elements are described in the article.
	Slides TUB04 [16.028 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUB04
About •	Received ※ 04 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 24 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB04	Features of the Electronic Cooling System of the NICA Booster	electron, booster, experiment, cathode	236
	A.G. Kobets, E.V. Ahmanova, S.A. Melnikov, I.N. Meshkov, O. Orlov, S.V. Semenov, A.S. Sergeev, A.A. Sidorin JINR, Dubna, Moscow Region, Russia A.V. Butenko, K.G. Osipov, A.O. Sidorin, E. Syresin JINR/VBLHEP, Dubna, Moscow region, Russia A.V. Ivanov BINP SB RAS, Novosibirsk, Russia
	The report presents the results obtained during the commissioning the Electron Cooling System (ECS) of the Booster, the first in the chain of three synchrotrons of the NICA accelerator complex. The work was performed without an ion beam and with a circulating ion beam He¹⁺. In the work with a circulating ion beam, the effect of reducing the lifetime of the circulating ions was observed when the velocities of the cooling electrons and the cooled ions coincide. The dependences of the electron beam current on the ECS parameters for different electron energy values were experimentally obtained. The specific features of operation of electron gun of the NICA Booster are hollow beam formation and the phenomenon of virtual cathode creation confirmed both experiments and by numerical simulation.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB04
About •	Received ※ 20 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 13 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB17	Investigations of Charge Particle Dynamics in Space Charge Fields	ECR, space-charge, site, experiment	265
	A.S. Chikhachev Allrussian Electrotechnical Institute, Moskow, Russia
	The work examines the transient dynamics of single-component systems. The problem on dynamics of flat layer and spherical symmetric configuration is considered. A classical collision-free system is considered, described using the "Meshchersky integral" and the "conjugate" integral of motion. States characterized by constant charge in non-stationary coordinates are obtained
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB17
About •	Received ※ 09 September 2021 — Revised ※ 20 September 2021 — Accepted ※ 23 September 2021 — Issued ※ 23 September 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB43	Optimization of the RF-Gun With Photocathode at Operating Frequency 2800 MHz for the New Injection Linac for USSR Project	simulation, beam-loading, cathode, injection	319
	Yu.D. Kliuchevskaia, S.M. Polozov MEPhI, Moscow, Russia S.M. Polozov NRC, Moscow, Russia
	The beam dynamics analysis of the RF-gun with photocathode for Russian 4th generation light source Ultimate Source of Synchrotron Radiation (USSR-4) was done to chose the optimal length of the section and cell’s number and also to define optimal accelerating gradient and injection phase. The simulation of electrodynamics parameters and RF field distribution in the RF-gun based on 3.5-, 5.5- and 7.5-cell pi-mode standing wave accelerating structure at operating frequency 2800 MHz was done. The influence of the beam loading effect on the field amplitude and beam dynamics was the main purpose of study also. The beam dynamics simulation results will present in the report and optimal RF-gun parameters will discuss.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB43
About •	Received ※ 15 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 23 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPSB44	Design and Simulation of an S-Band RF Photogun for a New Injector of the Accelerator Linac-200 at JINR	electron, laser, cavity, linac	322
	Y.A. Samofalova, V.V. Kobets, M.A. Nozdrin, A. Zhemchugov JINR, Dubna, Moscow Region, Russia A.M. Barnyakov BINP SB RAS, Novosibirsk, Russia
	A new 2.856 GHz S-band RF photogun for the generation of ultrashort electron beams at the LINAC-200 accelerator at JINR is simulated. The beam parameters at the photogun output are determined to meet the requirements of the LINAC-200 injection. The general design of the photogun is presented. The electrodynamic parameters are determined and the accelerating field distribution is calculated. The particle dynamics is simulated and analyzed to obtain the required beam properties.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB44
About •	Received ※ 29 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 17 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEA03	200 MeV Linac Development for the SKIF Light Source Injector	linac, electron, bunching, injection	68
	M.V. Arsentyeva, A.V. Andrianov, A.M. Barnyakov, D.I. Chekmenyov, A.E. Levichev, O.I. Meshkov, D.A. Nikiforov, O.A. Pavlov, I.L. Pivovarov, S.L. Samoylov, V. Volkov BINP SB RAS, Novosibirsk, Russia
	A new synchrotron light source SKIF of the 4th gen-eration is construction at Budker institute of nuclear physics (Novosibirsk, Russia). It consists of the main ring, the booster ring and the linear accelerator. This paper presents design of the linear accelerator which is expected to provide electron beams with the energy of 200 MeV. Construction of the linear accelerator is discussed. Description of the linear accelerator main systems is presented.
	Slides WEA03 [4.794 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEA03
About •	Received ※ 20 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSC45	Measurement of the Electron Beam Spectrum by the Absorbing Filters Method During a Single Pulse	electron, experiment, operation, high-voltage	430
	A.A. Drozdovsky, A.V. Bogdanov, S.A. Drozdovsky, A.V. Kantsyrev, A. Khurchiev, V.A. Panyushkin, S.M. Savin, A.V. Skobliakov, S.A. Visotski, V.A. Volkov ITEP, Moscow, Russia
	Funding: Work supported by R&D Project between NRC "Kurchatov Institute" - ITEP and TRINITI The interest in measuring spectrum of electron beams by the method of absorbing filters is due to its technical accessibility, compactness, efficiency and usability at various research facilities. The complexity of this method lies in severe ill-posedness of the inverse problem of reconstruction the spectrum from the beam absorption. The task of our work is the operational control of the spectrum of a beam with the maximum energy up to 300 keV. The current collector package consists of 16 insulated identical aluminum foils with the 1 mm gap between. The thickness range of the foils is 10 to 25 microns, depending on the maximum electron energy. The charge of the foils after passing the beam is measured by the ADC. The assembly geometry was calculated by the Monte Carlo method to determine the accumulation of charges on foils when monoenergetic beams are transmitted in the range from 10 to 300 keV with step increment of 10 keV. The inverse problem was solved by Tikhonov regularization. It turned out that a high-accuracy fitting of the input data and the transformation kernel by statistical distributions is the primary factor, which allows to reduce the regularization parameter to almost zero. The validity of the technique applied is confirmed by the fact that the spectrum obtained at the maximum electron energy of the beam of 250 keV is in satisfactory agreement with the spectrum measured on a magnetic spectrometer.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC45
About •	Received ※ 20 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 09 October 2021
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

Beam Dynamics Simulation in a Linear Electron Accelerator - Injector for the 4th Generation Specialized Synchrotron Radiation Source USSR

simulation, linac, injection, cathode

149

I.A. Ashanin, Yu.D. Kliuchevskaia, S.M. Polozov, A.I. Pronikov
MEPhI, Moscow, Russia
I.A. Ashanin, S.M. Polozov, A.I. Pronikov
NRC, Moscow, Russia

USSR project (Ultimate Source of Synchrotron Radiation, 4th generation synchrotron light source) is being developed in the NRC «Kurchatov Institute». This Light Source will include both storage ring and soft FEL (Free Electron Laser) and one linac with an energyof 6 GeV, which is planned to be used both for beam injection into storage ring (top-up injection) and as a high-brightness bunch driver for FEL. It is suggested to use two front-ends in this linac: RF-gun with thermionic cathode with adiabatic buncher for injection into storage ring and RF-gun with photocathode will use to generate a bunch train for FEL. The purpose of this work was to development a general layout of the top-up linac with the aim of minimize of the beam energy spread and transverse emittance at the exit and analysis the front-to-end beam dynamics in this linear accelerator.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA08

About •

Received ※ 29 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 09 October 2021

Cite •

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

TUB04

Development of the Electron Cooling System for NICA Collider

electron, high-voltage, solenoid, collider

48

M.I. Bryzgunov, A.M. Batrakov, E.A. Bekhtenev, O.V. Belikov, A.V. Bubley, V.A. Chekavinskiy, A.P. Denisov, M.G. Fedotov, A.D. Goncharov, K. Gorchakov, V.C. Gosteyev, I.A. Gusev, I.V. Ilyin, A.V. Ivanov, G.V. Karpov, M.N. Kondaurov, N.S. Kremnev, V.M. Panasyuk, V.V. Parkhomchuk, D.N. Pureskin, A.A. Putmakov, V.B. Reva, D.V. Senkov, K.S. Shtro, D.N. Skorobogatov, R.V. Vakhrushev, A.A. Zharikov
BINP SB RAS, Novosibirsk, Russia
E.A. Bekhtenev, A.V. Ivanov, N.S. Kremnev, V.B. Reva
NSU, Novosibirsk, Russia

The high voltage electron cooling system for the NICA collider is now under development in the Budker Institute of Nuclear Physics (Russia). The aim of the cooler is to increase ion beams intencity during accumulation and to decrease both longitudinal and transverse emmitances of colliding beams during experiment in order to increase luminosity. Status of its development and results of tests of the cooler elements are described in the article.

Slides TUB04 [16.028 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUB04

About •

Received ※ 04 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 24 October 2021

Cite •

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

TUPSB04

Features of the Electronic Cooling System of the NICA Booster

electron, booster, experiment, cathode

236

A.G. Kobets, E.V. Ahmanova, S.A. Melnikov, I.N. Meshkov, O. Orlov, S.V. Semenov, A.S. Sergeev, A.A. Sidorin
JINR, Dubna, Moscow Region, Russia
A.V. Butenko, K.G. Osipov, A.O. Sidorin, E. Syresin
JINR/VBLHEP, Dubna, Moscow region, Russia
A.V. Ivanov
BINP SB RAS, Novosibirsk, Russia

The report presents the results obtained during the commissioning the Electron Cooling System (ECS) of the Booster, the first in the chain of three synchrotrons of the NICA accelerator complex. The work was performed without an ion beam and with a circulating ion beam He¹⁺. In the work with a circulating ion beam, the effect of reducing the lifetime of the circulating ions was observed when the velocities of the cooling electrons and the cooled ions coincide. The dependences of the electron beam current on the ECS parameters for different electron energy values were experimentally obtained. The specific features of operation of electron gun of the NICA Booster are hollow beam formation and the phenomenon of virtual cathode creation confirmed both experiments and by numerical simulation.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB04

About •

Received ※ 20 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 13 October 2021

Cite •

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

TUPSB17

Investigations of Charge Particle Dynamics in Space Charge Fields

ECR, space-charge, site, experiment

265

A.S. Chikhachev
Allrussian Electrotechnical Institute, Moskow, Russia

The work examines the transient dynamics of single-component systems. The problem on dynamics of flat layer and spherical symmetric configuration is considered. A classical collision-free system is considered, described using the "Meshchersky integral" and the "conjugate" integral of motion. States characterized by constant charge in non-stationary coordinates are obtained

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB17

About •

Received ※ 09 September 2021 — Revised ※ 20 September 2021 — Accepted ※ 23 September 2021 — Issued ※ 23 September 2021

Cite •

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

TUPSB43

Optimization of the RF-Gun With Photocathode at Operating Frequency 2800 MHz for the New Injection Linac for USSR Project

simulation, beam-loading, cathode, injection

319

Yu.D. Kliuchevskaia, S.M. Polozov
MEPhI, Moscow, Russia
S.M. Polozov
NRC, Moscow, Russia

The beam dynamics analysis of the RF-gun with photocathode for Russian 4th generation light source Ultimate Source of Synchrotron Radiation (USSR-4) was done to chose the optimal length of the section and cell’s number and also to define optimal accelerating gradient and injection phase. The simulation of electrodynamics parameters and RF field distribution in the RF-gun based on 3.5-, 5.5- and 7.5-cell pi-mode standing wave accelerating structure at operating frequency 2800 MHz was done. The influence of the beam loading effect on the field amplitude and beam dynamics was the main purpose of study also. The beam dynamics simulation results will present in the report and optimal RF-gun parameters will discuss.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB43

About •

Received ※ 15 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 23 October 2021

Cite •

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

TUPSB44

Design and Simulation of an S-Band RF Photogun for a New Injector of the Accelerator Linac-200 at JINR

electron, laser, cavity, linac

322

Y.A. Samofalova, V.V. Kobets, M.A. Nozdrin, A. Zhemchugov
JINR, Dubna, Moscow Region, Russia
A.M. Barnyakov
BINP SB RAS, Novosibirsk, Russia

A new 2.856 GHz S-band RF photogun for the generation of ultrashort electron beams at the LINAC-200 accelerator at JINR is simulated. The beam parameters at the photogun output are determined to meet the requirements of the LINAC-200 injection. The general design of the photogun is presented. The electrodynamic parameters are determined and the accelerating field distribution is calculated. The particle dynamics is simulated and analyzed to obtain the required beam properties.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB44

About •

Received ※ 29 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 17 October 2021

Cite •

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

WEA03

200 MeV Linac Development for the SKIF Light Source Injector

linac, electron, bunching, injection

68

M.V. Arsentyeva, A.V. Andrianov, A.M. Barnyakov, D.I. Chekmenyov, A.E. Levichev, O.I. Meshkov, D.A. Nikiforov, O.A. Pavlov, I.L. Pivovarov, S.L. Samoylov, V. Volkov
BINP SB RAS, Novosibirsk, Russia

A new synchrotron light source SKIF of the 4th gen-eration is construction at Budker institute of nuclear physics (Novosibirsk, Russia). It consists of the main ring, the booster ring and the linear accelerator. This paper presents design of the linear accelerator which is expected to provide electron beams with the energy of 200 MeV. Construction of the linear accelerator is discussed. Description of the linear accelerator main systems is presented.

Slides WEA03 [4.794 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEA03

About •

Received ※ 20 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021

Cite •

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

WEPSC45

Measurement of the Electron Beam Spectrum by the Absorbing Filters Method During a Single Pulse

electron, experiment, operation, high-voltage

430

A.A. Drozdovsky, A.V. Bogdanov, S.A. Drozdovsky, A.V. Kantsyrev, A. Khurchiev, V.A. Panyushkin, S.M. Savin, A.V. Skobliakov, S.A. Visotski, V.A. Volkov
ITEP, Moscow, Russia

Funding: Work supported by R&D Project between NRC "Kurchatov Institute" - ITEP and TRINITI
The interest in measuring spectrum of electron beams by the method of absorbing filters is due to its technical accessibility, compactness, efficiency and usability at various research facilities. The complexity of this method lies in severe ill-posedness of the inverse problem of reconstruction the spectrum from the beam absorption. The task of our work is the operational control of the spectrum of a beam with the maximum energy up to 300 keV. The current collector package consists of 16 insulated identical aluminum foils with the 1 mm gap between. The thickness range of the foils is 10 to 25 microns, depending on the maximum electron energy. The charge of the foils after passing the beam is measured by the ADC. The assembly geometry was calculated by the Monte Carlo method to determine the accumulation of charges on foils when monoenergetic beams are transmitted in the range from 10 to 300 keV with step increment of 10 keV. The inverse problem was solved by Tikhonov regularization. It turned out that a high-accuracy fitting of the input data and the transformation kernel by statistical distributions is the primary factor, which allows to reduce the regularization parameter to almost zero. The validity of the technique applied is confirmed by the fact that the spectrum obtained at the maximum electron energy of the beam of 250 keV is in satisfactory agreement with the spectrum measured on a magnetic spectrometer.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC45

About •

Received ※ 20 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 09 October 2021

Cite •

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