RuPAC2016 - List of Authors (Scheglov, M.A.)

Paper

Title

Page

Novosibirsk Free Electron Laser: Terahertz and Infrared Coherent Radiation Source

16

N.A. Vinokurov, V.S. Arbuzov, K.N. Chernov, I.V. Davidyuk, O.I. Deichuli, E.N. Dementyev, B.A. Dovzhenko, Ya.V. Getmanov, Ya.I. Gorbachev, B.A. Knyazev, E.I. Kolobanov, A.A. Kondakov, V.R. Kozak, E.V. Kozyrev, S.A. Krutikhin, V.V. Kubarev, G.N. Kulipanov, E.A. Kuper, I.V. Kuptsov, G.Y. Kurkin, L.E. Medvedev, S.V. Motygin, V.N. Osipov, V.K. Ovchar, V.M. Petrov, A.M. Pilan, V.M. Popik, V.V. Repkov, T.V. Salikova, M.A. Scheglov, I.K. Sedlyarov, S.S. Serednyakov, O.A. Shevchenko, A.N. Skrinsky, S.V. Tararyshkin, V.G. Tcheskidov, A.G. Tribendis, P. Vobly, V. Volkov
BINP SB RAS, Novosibirsk, Russia
I.V. Davidyuk, Ya.V. Getmanov, B.A. Knyazev, E.V. Kozyrev, S.S. Serednyakov, N.A. Vinokurov
NSU, Novosibirsk, Russia
A.G. Tribendis
NSTU, Novosibirsk, Russia

Funding: This work was supported by Russian Science Foundation (project N 14-50-00080).
High-power free electron laser (FEL) facility NovoFEL has been created at Budker INP. Its wavelength can be tuned over a wide range in terahertz and infrared spectrum regions. As a source of electron bunches this FEL uses multi-turn energy recovery linac which has five straight sections. Three sections are used for three FELs which operate in different wavelength ranges (the first one - 90-240 microns, the second - 37-80 microns and the third - 5-20 microns). The first and the second FELs were commissioned in 2003 and 2009 respectively. They operate for users now. The third FEL is installed on forth accelerator track which is the last one and electron energy is maximal here. It comprises three undulator sections and 40 m optical cavity. The first lasing of this FEL was obtained in summer, 2015. The radiation wavelength was 9 microns and average power was about 100 watts. The designed power is 1 kilowatt at repetition rate 3.75 MHz. Radiation of third FEL has been delivered to user stations recently. The third FEL commissioning results as well as current status of the first and second FELs and future development prospects are presented.

Slides TUXMH02 [26.379 MB]

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TUCAMH02

CW 100 mA Electron RF Gun for Novosibirsk ERL FEL

24

V. Volkov, V.S. Arbuzov, E. Kenzhebulatov, E.I. Kolobanov, A.A. Kondakov, E.V. Kozyrev, S.A. Krutikhin, I.V. Kuptsov, G.Y. Kurkin, S.V. Motygin, A.A. Murasev, V.K. Ovchar, V.M. Petrov, A.M. Pilan, A.V. Repkov, M.A. Scheglov, I.K. Sedlyarov, S.S. Serednyakov, O.A. Shevchenko, S.V. Tararyshkin, A.G. Tribendis, N.A. Vinokurov
BINP SB RAS, Novosibirsk, Russia
N.A. Vinokurov
NSU, Novosibirsk, Russia

Funding: Grant 14-50-00080 of the Russian Science Foundation
Continuous wave (CW) 100 mA electron RF gun for injecting the high-quality 300-400 keV electron beam in Novosibirsk microtron recuperator (ERL) and driving Free Electron Laser (FEL) was developed, built, and commissioned at BINP SB RAS. The RF gun consists of normal conducting 90 MHz RF cavity with a gridded thermionic cathode unit. Bench tests of rf gun is confirmed good results in strict accordance with the calculations. The gun was tested up to the design specifications at a test bench that includes a diagnostics beam line. The rf gun stand testing showed reliable work, unpretentious for vacuum conditions and stable in long-term operation. The design features of different components of the gun are presented. Preparation and commissioning experience is discussed. The beam test results are summarized.

Slides TUCAMH02 [2.764 MB]

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THPSC029

300 kV High-Voltage Source With Up to 15 kW Output Power

606

D.V. Senkov, I.A. Gusev, A.Yu. Protopopov, D.N. Pureskin, M.A. Scheglov
BINP SB RAS, Novosibirsk, Russia

The presented report contains the description of high-voltage source with output voltage up to 300 kV and output current up to 50 mA. The source consist of the chopper with IGBT switches working with a principle of pulse-width modulation and the full H-bridge converter with IGBT switches, both working on programmed from 15 to 25 kHz frequency, and the high voltage transformer powering the eight-stage multiplier with the additional capacity filter at output. The transformer and multiplier both are made in common volume separated on oil tank part with silicon oil for transformer and SF6 part for multiplier. The additional capacity filter provides low ripple and noise level in working range of output currents. The source can operate in normal mode with series of high-voltage breakdown in output voltage. In the high-voltage breakdown the released in load and matching circuit energy is less than 40 J at maximum operating voltage 300kV. The efficiency of system is more than 80% at the nominally output power 15 kW. The description of the source and the test results are presented.

Poster THPSC029 [1.218 MB]

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THPSC062

System for Diagnostics of Local Electron Beam Losses in Microtron-Recuperator at Novosibirsk Free Electron Laser Beamline via Registration of Induced X-Rays

S.S. Serednyakov, M.A. Scheglov
BINP SB RAS, Novosibirsk, Russia
E.N. Dementiev
Budker INP & NSU, Novosibirsk, Russia

The Novosibirsk Free Electron Laser (FEL) is based on a 4-turn microtron-recuperator. To ensure its stable operation and radiation generation, it is necessary to provide a stable mode of electron beam recirculation and minimize beam losses on the vacuum chamber wall on all the way of beam in the accelerator beamline. To fulfil this task it is necessary to know the longitudinal distribution of these losses along the beamline. To this end, a system for registration of beam losses was created. The system applies optical fibers placed along the full length of the vacuum chamber and nearby it. In case of local electron beam losses somewhere in the vacuum chamber, electrons falling to the vacuum chamber wall cause generation of X- and gamma rays. This radiation in turn causes generation of optical radiation in the optic fiber nearby the region of electron 'precipitation' on the chamber wall. Then, executing some transformation and processing of the time dependencies of signals from these optic fibers, one can obtain the longitudinal distribution of electron beam losses along the whole accelerator channel in all its 4 turns.

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Paper	Title	Page
TUXMH02	Novosibirsk Free Electron Laser: Terahertz and Infrared Coherent Radiation Source	16
	N.A. Vinokurov, V.S. Arbuzov, K.N. Chernov, I.V. Davidyuk, O.I. Deichuli, E.N. Dementyev, B.A. Dovzhenko, Ya.V. Getmanov, Ya.I. Gorbachev, B.A. Knyazev, E.I. Kolobanov, A.A. Kondakov, V.R. Kozak, E.V. Kozyrev, S.A. Krutikhin, V.V. Kubarev, G.N. Kulipanov, E.A. Kuper, I.V. Kuptsov, G.Y. Kurkin, L.E. Medvedev, S.V. Motygin, V.N. Osipov, V.K. Ovchar, V.M. Petrov, A.M. Pilan, V.M. Popik, V.V. Repkov, T.V. Salikova, M.A. Scheglov, I.K. Sedlyarov, S.S. Serednyakov, O.A. Shevchenko, A.N. Skrinsky, S.V. Tararyshkin, V.G. Tcheskidov, A.G. Tribendis, P. Vobly, V. Volkov BINP SB RAS, Novosibirsk, Russia I.V. Davidyuk, Ya.V. Getmanov, B.A. Knyazev, E.V. Kozyrev, S.S. Serednyakov, N.A. Vinokurov NSU, Novosibirsk, Russia A.G. Tribendis NSTU, Novosibirsk, Russia
	Funding: This work was supported by Russian Science Foundation (project N 14-50-00080). High-power free electron laser (FEL) facility NovoFEL has been created at Budker INP. Its wavelength can be tuned over a wide range in terahertz and infrared spectrum regions. As a source of electron bunches this FEL uses multi-turn energy recovery linac which has five straight sections. Three sections are used for three FELs which operate in different wavelength ranges (the first one - 90-240 microns, the second - 37-80 microns and the third - 5-20 microns). The first and the second FELs were commissioned in 2003 and 2009 respectively. They operate for users now. The third FEL is installed on forth accelerator track which is the last one and electron energy is maximal here. It comprises three undulator sections and 40 m optical cavity. The first lasing of this FEL was obtained in summer, 2015. The radiation wavelength was 9 microns and average power was about 100 watts. The designed power is 1 kilowatt at repetition rate 3.75 MHz. Radiation of third FEL has been delivered to user stations recently. The third FEL commissioning results as well as current status of the first and second FELs and future development prospects are presented.
	Slides TUXMH02 [26.379 MB]
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TUCAMH02	CW 100 mA Electron RF Gun for Novosibirsk ERL FEL	24
	V. Volkov, V.S. Arbuzov, E. Kenzhebulatov, E.I. Kolobanov, A.A. Kondakov, E.V. Kozyrev, S.A. Krutikhin, I.V. Kuptsov, G.Y. Kurkin, S.V. Motygin, A.A. Murasev, V.K. Ovchar, V.M. Petrov, A.M. Pilan, A.V. Repkov, M.A. Scheglov, I.K. Sedlyarov, S.S. Serednyakov, O.A. Shevchenko, S.V. Tararyshkin, A.G. Tribendis, N.A. Vinokurov BINP SB RAS, Novosibirsk, Russia N.A. Vinokurov NSU, Novosibirsk, Russia
	Funding: Grant 14-50-00080 of the Russian Science Foundation Continuous wave (CW) 100 mA electron RF gun for injecting the high-quality 300-400 keV electron beam in Novosibirsk microtron recuperator (ERL) and driving Free Electron Laser (FEL) was developed, built, and commissioned at BINP SB RAS. The RF gun consists of normal conducting 90 MHz RF cavity with a gridded thermionic cathode unit. Bench tests of rf gun is confirmed good results in strict accordance with the calculations. The gun was tested up to the design specifications at a test bench that includes a diagnostics beam line. The rf gun stand testing showed reliable work, unpretentious for vacuum conditions and stable in long-term operation. The design features of different components of the gun are presented. Preparation and commissioning experience is discussed. The beam test results are summarized.
	Slides TUCAMH02 [2.764 MB]
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THPSC029	300 kV High-Voltage Source With Up to 15 kW Output Power	606
	D.V. Senkov, I.A. Gusev, A.Yu. Protopopov, D.N. Pureskin, M.A. Scheglov BINP SB RAS, Novosibirsk, Russia
	The presented report contains the description of high-voltage source with output voltage up to 300 kV and output current up to 50 mA. The source consist of the chopper with IGBT switches working with a principle of pulse-width modulation and the full H-bridge converter with IGBT switches, both working on programmed from 15 to 25 kHz frequency, and the high voltage transformer powering the eight-stage multiplier with the additional capacity filter at output. The transformer and multiplier both are made in common volume separated on oil tank part with silicon oil for transformer and SF6 part for multiplier. The additional capacity filter provides low ripple and noise level in working range of output currents. The source can operate in normal mode with series of high-voltage breakdown in output voltage. In the high-voltage breakdown the released in load and matching circuit energy is less than 40 J at maximum operating voltage 300kV. The efficiency of system is more than 80% at the nominally output power 15 kW. The description of the source and the test results are presented.
	Poster THPSC029 [1.218 MB]
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THPSC062	System for Diagnostics of Local Electron Beam Losses in Microtron-Recuperator at Novosibirsk Free Electron Laser Beamline via Registration of Induced X-Rays
	S.S. Serednyakov, M.A. Scheglov BINP SB RAS, Novosibirsk, Russia E.N. Dementiev Budker INP & NSU, Novosibirsk, Russia
	The Novosibirsk Free Electron Laser (FEL) is based on a 4-turn microtron-recuperator. To ensure its stable operation and radiation generation, it is necessary to provide a stable mode of electron beam recirculation and minimize beam losses on the vacuum chamber wall on all the way of beam in the accelerator beamline. To fulfil this task it is necessary to know the longitudinal distribution of these losses along the beamline. To this end, a system for registration of beam losses was created. The system applies optical fibers placed along the full length of the vacuum chamber and nearby it. In case of local electron beam losses somewhere in the vacuum chamber, electrons falling to the vacuum chamber wall cause generation of X- and gamma rays. This radiation in turn causes generation of optical radiation in the optic fiber nearby the region of electron 'precipitation' on the chamber wall. Then, executing some transformation and processing of the time dependencies of signals from these optic fibers, one can obtain the longitudinal distribution of electron beam losses along the whole accelerator channel in all its 4 turns.
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)