20 results on '"Serednyakov, Stanislav"'
Search Results
2. Bench Test Results of CW 100 mA Electron RF Gun for Novosibirsk ERL based FEL
- Author
-
Volkov, Vladimir, Arbuzov, Vladimir, Kenzhebulatov, Ermek, Kolobanov, Evegeniy, Kondakov, Alexey, Kozyrev, Evgeny, Krutikhin, Sergey, Kuptsov, Igor, Kurkin, Grigory, Motygin, Sergey, Murasev, Anatoly, Ovchar, Vladimir, Petrov, Victor, Pilan, Andrey, Repkov, Vladimir, Scheglov, Mikhail, Sedlyarov, Igor, Serednyakov, Stanislav, Shevchenko, Oleg, Tararyshkin, Sergey, Tribendis, Alexey, and Vinokurov, Nikolay
- Subjects
WG3: Electron sources and injectors ,Accelerator Physics - Abstract
Continuous wave (CW) 100 mA electron rf gun for injecting the high-quality 300-400 keV electron beam in Novosibirsk Energy Recovery Linac (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 our numerical calculations and showed reliable work, unpretentious for vacuum conditions and stable in long-term operation. The design features of different components of the rf gun are presented. Preparation and commissioning experience is discussed. The latest beam results are reported., Proceedings of the 63th ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs, ERL2019, Berlin, Germany
- Published
- 2020
- Full Text
- View/download PDF
3. Electronic Modulation of the FEL-Oscillator Radiation Power Driven by ERL
- Author
-
Shevchenko, Oleg, Bykov, Eugeny, Fedin, Matvey, Getmanov, Yaroslav, Melnikov, Anatoly, Serednyakov, Stanislav, Tararyshkin, Sergey, and Veber, Sergey
- Subjects
Physics::Accelerator Physics ,FEL Oscillators and Long Wavelengths FEL ,Accelerator Physics - Abstract
FEL oscillators usually operate in CW mode and produce periodic train of radiation pulses but some user experiments require modulation of radiation power. Conventional way to obtain this modulation is using of mechanical shutters but it cannot provide very short switching time and may lead to decreasing of the radiation beam quality. Another way could be based on the electron beam current modulation but it cannot be used in the ERL. We propose a simple way of fast control of the FEL lasing which is based on periodic phase shift of electron bunches with respect to radiation stored in optical cavity. The phase shift required to suppress lasing is relatively small and it does not change significantly repetition rate. This approach has been realized at NovoFEL facility. It allows to generate radiation macropulses of desirable length down to several microseconds (limited by quality factor of optical cavity and FEL gain) which can be synchronized with external trigger. We present detailed description of electronic power modulation scheme and discuss the results of experiments., Proceedings of the 39th Free Electron Laser Conference, FEL2019, Hamburg, Germany
- Published
- 2019
- Full Text
- View/download PDF
4. Measurements of magnetic field of variable period undulator and correction of field errors.
- Author
-
Gorbachev, Yaroslav, Davidyuk, Igor, Serednyakov, Stanislav, Vinokurov, Nikolay, Tcheskidov, Vladimir, Pavlenko, Anton, Batrakov, Alexandr, Shtro, Konstantin, Shevchenko, Oleg, and Knyazev, Boris
- Subjects
MAGNETIC field measurements ,CODING theory ,SUPERCONDUCTING magnets ,MAGNETS ,COINTEGRATION - Abstract
A new variable period undulator of unique design was developed and built recently at Budker INP. It will replace the electromagnetic undulator in use now on the second FEL of the Novosibirsk FEL facility. As a result, the FEL tunability range will be substantially extended. In this paper, we present the results of measurements of the undulator magnetic field for different periods and discuss ways to reduce the field errors, which include sorting of magnets, weakening of undulator edge poles, and using of steering coils. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
5. The Control System of Novosibirsk Free Electron Laser
- Author
-
Kozak, Victor, Kuper, Eduard, Salikova, Tatiana, Selivanov, Pavel Arcadievich, Serednyakov, Stanislav, Tararyshkin, Sergey, Tribendis, Alexey, and Vinokurov, Nikolay
- Subjects
Project Status Reports ,Accelerator Physics - Abstract
Novosibirsk Free electron Laser (FEL) based on multi-turn energy recovery linac is the source of coherent radiation with ability of wavelength tuning. It involves one single-turn and one 4-turn microtron-recuperator, which are have general injection channel and acceleration section. There are three different free electron lasers, mounted on different tracks of these accelerators, and operating on different electron beam energy and have different wavelength range and power of generated radiation. Whole FEL facility is a complex physics installation, controlled by large amount of equipment of different types. Therefore, for effective control and monitor of FEL operation state and its parameters, the particularized control system was developed. In this paper the architecture, hardware, software compound parts of this control system are considered. Also main abilities, characteristics of this system and examples of its usage are presented., Proceedings of the 16th Int. Conf. on Accelerator and Large Experimental Control Systems, ICALEPCS2017, Barcelona, Spain
- Published
- 2018
- Full Text
- View/download PDF
6. Test Stand Results of CW 100 mA Electron RF Gun for Novosibirsk ERL FEL
- Author
-
Volkov, Vladimir, Arbuzov, Vladimir, Kenzhebulatov, Ermek, Kolobanov, Evegeniy, Kondakov, Alexey, Kozyrev, Evgeny, Kuptsov, Igor, Kurkin, Grigory, Motygin, Sergey, Murasev, Anatoly, Ovchar, Vladimir, Petrov, Victor, Pilan, Andrey, Repkov, Vladimir, Scheglov, Mikhail, Sedlyarov, Igor, Serednyakov, Stanislav, Shevchenko, Oleg, Tararyshkin, Sergey, Tribendis, Alexey, and Vinokurov, Nikolay
- Subjects
Ion sources and electron guns ,Accelerator Physics - Abstract
Continuous wave (CW) 100 mA electron rf gun for injecting the high-quality 300-400 keV electron beam in Novosibirsk Energy Recovery Linac (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 our numerical 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 rf gun are presented. Preparation and commissioning experience is discussed. The latest beam results are reported., Proceedings of the 26th Russian Particle Accelerator Conf., RUPAC2018, Protvino, Russia
- Published
- 2018
- Full Text
- View/download PDF
7. Latest Results of CW 100 mA Electron RF Gun for Novosibirsk ERL Based FEL
- Author
-
Volkov, Vladimir, Arbuzov, Vladimir, Kenzhebulatov, Ermek, Kolobanov, Evegeniy, Kondakov, Alexey, Kozyrev, Evgeny, Krutikhin, Sergey, Kuptsov, Igor, Kurkin, Grigory, Motygin, Sergey, Murasev, Anatoly, Ovchar, Vladimir, Petrov, Victor, Pilan, Andrey, Repkov, Vladimir, Scheglov, Mikhail, Sedlyarov, Igor, Serednyakov, Stanislav, Shevchenko, Oleg, Tararyshkin, Sergey, Tribendis, Alexey, and Vinokurov, Nikolay
- Subjects
Beam dynamics, extreme beams, sources and beam related technologies ,Accelerator Physics - Abstract
Continuous wave (CW) 100 mA electron rf gun for injecting high-quality 300-400 keV electron beam to the Energy Recovery Linac (ERL) driving the Novosibirsk Free Electron Laser (FEL) was developed, built, and commissioned in a diagnostics beam line. The rf gun consists of normal conducting 90 MHz rf cavity with a gridded thermionic cathode unit. Tests of the rf gun confirmed its design performance in strict accordance with numerical simulations. The gun was tested up to the design specifications at a test bench that includes a diagnostics beam line. The design features of different components of the rf gun are presented. The commissioning experience is discussed. The latest beam results are reported., Proceedings of the 29\textsuperscript{th} Linear Accelerator Conf., LINAC2018, Beijing, China
- Published
- 2018
- Full Text
- View/download PDF
8. Upgrade of Quench Recording System for Multipole Superconducting Wigglers at BINP
- Author
-
Vasilyev, Mikhail, Batrakov, Alexander, Fatkin, George, Serednyakov, Stanislav, and Volkov, Askold
- Subjects
Superconducting accelerators and cryogenics ,Accelerator Physics - Abstract
Magnetic poles of superconducting wigglers (SCWs) are passed through "training" phase during fabrication of SCWs at Budker INP. In "training" procedure magnetic field is increased until superconducting coils enter the resistive state. Quench Recording System (QRS) is used for registration of waveforms in each coils to determine fault initiator coil. The total number monitored coils reach 312. Outdated QRS is based on modules in CAMAC standard and requires modernization. The basis of the new system is VME64-BINP crate with multichannel digitizer ADCx32 and RIO-module for safe signal receiving in high-voltage common-mode environment. The structure and details of the new system, as well as the experience of using the old one are given in the report., Proceedings of the 26th Russian Particle Accelerator Conf., RUPAC2018, Protvino, Russia
- Published
- 2018
- Full Text
- View/download PDF
9. TANGO Activities in BINP
- Author
-
Senchenko, Alexander, Fatkin, George, Kotov, Evgeniy, Serednyakov, Stanislav, and Sitnov, Vladimir
- Subjects
Accelerator Physics ,Control and diagnostic systems - Abstract
Several years of experience using TANGO Control system are discussed in this paper. Construction of Linear Induction Accelerator (LIA-20) was the driving force for introduction of TANGO in Budker Institute. In the frame of this project, significant number of TANGO Classes for different types of hardware were developed and basic program infrastructure was provided. This progress made it feasible to apply TANGO to other facilities. Therefore, it was used in some subsystems at VEPP-2000 and vacuum stand. This paper presents overview of construction of TANGO based control system. The problems, which arise during its introduction to existing control system, are discussed as well., Proceedings of the 26th Russian Particle Accelerator Conf., RUPAC2018, Protvino, Russia
- Published
- 2018
- Full Text
- View/download PDF
10. Tango Based Software of Control System of LIA-20
- Author
-
Senchenko, Alexander, Fatkin, George, Selivanov, Pavel Arcadievich, and Serednyakov, Stanislav
- Subjects
Software Technology Evolution ,Accelerator Physics - Abstract
The linear induction accelerator LIA-20 for radiography is a pulsed machine designed to provide three consecutive electron bunches. Since every pulse is a distinctive experiment, it is of high importance to provide coherence of the facility state and the experimental data. This paper presents overall software architecture. Challenges and particular approaches to designing of a pulsed machine control system using Tango are discussed., Proceedings of the 16th Int. Conf. on Accelerator and Large Experimental Control Systems, ICALEPCS2017, Barcelona, Spain
- Published
- 2018
- Full Text
- View/download PDF
11. LIA-20 Control System Project
- Author
-
Fatkin, George, Baluev, Alexander, Batrakov, Alexander, Bekhtenev, Evgeny, Kotov, Evgeniy, Macheret, Yaroslav, Mamkin, Vitaly, Ottmar, Andrey, Panov, Alexey, Pavlenko, Anton, Selivanov, Arkady, Selivanov, Pavel Arcadievich, Senchenko, Alexander, Serednyakov, Stanislav, Shtro, Konstantin, and Singatulin, Shavkat
- Subjects
Project Status Reports ,Accelerator Physics - Abstract
The project of the control system of linear induction accelerator LIA-20 for radiography is presented in this paper. The accelerator is a complex pulsed machine designed to provide a series of three consecutive electron pulses with an energy up to 20 MeV, current 2 kA and lateral beam size less then 1 mm. To allow reliable operation of the whole complex, coordinated functioning of more then 700 devices must be guaranteed in time frames from milliseconds to several nanoseconds. Total number of control channels exceeds 6000. The control system is based on a variety of specially developed VME and CAN modules and crates. Tango program infrastructure is used. The first stage of commissioning will take place in the end of 2017 and will include launching 5 MeV version of the accelerator., Proceedings of the 16th Int. Conf. on Accelerator and Large Experimental Control Systems, ICALEPCS2017, Barcelona, Spain
- Published
- 2018
- Full Text
- View/download PDF
12. Novosibirsk ERL Facility
- Author
-
Vinokurov, Nikolay, Borin, Vladislav, Davidyuk, Igor, Deichuli, Olga, Dementyev, Evgeny, Dorokhov, Victor, Dovzhenko, Boris, Getmanov, Yaroslav, Gorbachev, Yaroslav, Knyazev, Boris, Kolobanov, Evegeniy, Kondakov, Alexey, Kozak, Victor, Kozyrev, Evgeny, Krutikhin, Sergey, Kubarev, Vitaly, Kulipanov, Gennady, Kuper, Eduard, Kuptsov, Igor, Kurkin, Grigory, Medvedev, Lev, Meshkov, Oleg, Motygin, Sergey, Murasev, Anatoly, Osipov, Vadim, Ovchar, Vladimir, Petrov, Victor, Pilan, Andrey, Popik, Vasiliy, Repkov, Vladimir, Salikova, Tatiana, Scheglov, Mikhail, Sedlyarov, Igor, Serednyakov, Stanislav, Shevchenko, Oleg, Skrinsky, Alexander, Tararyshkin, Sergey, Tcheskidov, Vladimir, Tribendis, Alexey, Vobly, Pavel, and Volkov, Vladimir
- Subjects
WG3: Test Facilities Around the World ,Accelerator Physics - Abstract
The first project of the four turn ERL for Novosibirsk FELs (NovoFEL) was proposed at FEL'90 Conference. Later the project was modified, but the base lines kept: a four turn normal conductance linac with energy recovery, low RF cavities (180 MHz), grid controlled DC gun (Q~1 nC, tau=1 nsec, f rep = 10 kHz-50 MHz). The ERL can operate in the three modes, providing an electron beam for the three different FELs (from 300 µm up to 5 µm). Construction and commissioning four track ERL was divided on three stage: the first stage NovoFEL working in spectral range (90-240) µm, based on one track energy recovery linac (ERL) with energy 12 MeV and current 30 mA, was commissioned in 2003. The second stage of NovoFEL working in spectral range (35-80) µm, based on two track energy recovery linac with energy 22 MeV and current 7 mA, was commissioned in 2009. The third stage of NovoFEL working in spectral range (8-15) µm, based on four track energy recovery linac with energy 42 MeV and current 5 mA was commissioned in 2015., Proceedings of the 59th ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs, ERL2017, Geneva, Switzerland
- Published
- 2018
- Full Text
- View/download PDF
13. Bunching properties of a classical microtron-injector for a far infrared free electron laser
- Author
-
Kazakevitch, Grigori M, Serednyakov, Stanislav S, Vinokurov, Nikolai A, Jeong, Young Uk, Lee, Byung Cheol, and Lee, Jongmin
- Published
- 2001
- Full Text
- View/download PDF
14. Novosibirsk Free Electron Laser: Terahertz and Infrared Coherent Radiation Source
- Author
-
Vinokurov, Nikolay, Arbuzov, Vladimir, Chernov, Konstantin, Davidyuk, Igor, Deichuli, Olga, Dementyev, Evgeny, Dovzhenko, Boris, Getmanov, Yaroslav, Gorbachev, Yaroslav, Knyazev, Boris, Kolobanov, Evegeniy, Kondakov, Alexey, Kozak, Victor, Kozyrev, Evgeny, Krutikhin, Sergey, Kubarev, Vitaly, Kulipanov, Gennady, Kuper, Eduard, Kuptsov, Igor, Kurkin, Grigory, Medvedev, Lev, Motygin, Sergey, Osipov, Vadim, Ovchar, Vladimir, Petrov, Victor, Pilan, Andrey, Popik, Vasiliy, Repkov, Vladimir, Salikova, Tatiana, Scheglov, Mikhail, Sedlyarov, Igor, Serednyakov, Stanislav, Shevchenko, Oleg, Skrinsky, Alexander, Tararyshkin, Sergey, Tcheskidov, Vladimir, Tribendis, Alexey, Vobly, Pavel, and Volkov, Vladimir
- Subjects
Synchrotron radiation sources and free electron lasers ,Accelerator Physics - Abstract
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., Proceedings of the 25th Russian Particle Accelerator Conf., RuPAC2016, St. Petersburg, Russia
- Published
- 2017
- Full Text
- View/download PDF
15. Novosibirsk Four-Orbit ERL With Three FELs
- Author
-
Vinokurov, Nikolay, Arbuzov, Vladimir, Chernov, Konstantin, Davidyuk, Igor, Deichuli, Olga, Dementyev, Evgeny, Dovzhenko, Boris, Getmanov, Yaroslav, Gorbachev, Yaroslav, Knyazev, Boris, Kolobanov, Evegeniy, Kondakov, Alexey, Kozak, Victor, Kozyrev, Evgeny, Krutikhin, Sergey, Kubarev, Vitaly, Kulipanov, Gennady, Kuper, Eduard, Kuptsov, Igor, Kurkin, Grigory, Medvedev, Lev, Motygin, Sergey, Osipov, Vadim, Ovchar, Vladimir, Petrov, Victor, Pilan, Andrey, Popik, Vasiliy, Repkov, Vladimir, Salikova, Tatiana, Scheglov, Mikhail, Sedlyarov, Igor, Serednyakov, Stanislav, Shevchenko, Oleg, Skrinsky, Alexander, Tararyshkin, Sergey, Tcheskidov, Vladimir, Tribendis, Alexey, Vobly, Pavel, and Volkov, Vladimir
- Subjects
02 Photon Sources and Electron Accelerators ,Accelerator Physics - Abstract
The Novosibirsk FEL facility has three FELs, installed on the first, second and fourth orbits of the ERL. The first FEL covers the wavelength range of 90 - 240 mkm at an average radiation power of up to 0.5 kW with a pulse repetition rate of 5.6 or 11.2 MHz and a peak power of up to 1 MW. The second FEL operates in the range of 40 - 80 mkm at an average radiation power of up to 0.5 kW with a pulse repetition rate of 7.5 MHz and a peak power of about 1 MW. These two FELs are the world's most powerful (in terms of average power) sources of coherent narrow-band (less than 1%) radiation in their wavelength ranges. The third FEL was commissioned in 2015 to cover the wavelength range of 5 - 20 mkm. The Novosibirsk ERL is the first and the only multiturn ERL in the world. Its peculiar features include the normal-conductive 180 MHz accelerating system, the DC electron gun with the grid thermionic cathode, three operation modes of the magnetic system, and a rather compact (6×40 m2) design. The facility has been operating for users of terahertz radiation since 2004., Proceedings of the 8th Int. Particle Accelerator Conf., IPAC2017, Copenhagen, Denmark
- Published
- 2017
- Full Text
- View/download PDF
16. Software and Computational Infrastructure of LIA-20 Control System
- Author
-
Senchenko, Alexander, Fatkin, George, Selivanov, Pavel Arcadievich, and Serednyakov, Stanislav
- Subjects
Accelerator Physics ,Control and diagnostic systems - Abstract
The linear induction accelerator LIAÂ20 for radiography is currently under construction at Budker Institute of Nuclear Physics. This paper presents software architecture and computational infrastructure for the accelerator controls. System and application software are described. Linux operating system is used on PC and embedded controllers. Application software is based on TANGO. Overall data transfer rate estimations are provided., Proceedings of the 25th Russian Particle Accelerator Conf., RuPAC2016, St. Petersburg, Russia
- Published
- 2017
- Full Text
- View/download PDF
17. Structure and Hardware of LIA-20 Control System
- Author
-
Fatkin, George, Baluev, Alexander, Batrakov, Alexander, Bekhtenev, Evgeny, Chupyra, Andrey, Kotov, Evgeniy, Macheret, Yaroslav, Mamkin, Vitaly, Ottmar, Andrey, Panov, Alexey, Pavlenko, Anton, Selivanov, Arkady, Selivanov, Pavel Arcadievich, Senchenko, Alexander, Serednyakov, Stanislav, Shtro, Konstantin, Singatulin, Shavkat, and Vasilyev, Mikhail
- Subjects
Accelerator Physics ,Control and diagnostic systems - Abstract
The control system of a linear induction accelerator LIA-20 for radiography is presented in this paper. The accelerator is designed to provide a series of three consecutive electron pulses with energy up to 20 MeV, current 2 kA and lateral size less than 1 mm. To allow reliable operation of the whole complex, coordinated functioning of more than 700 devices must be guaranteed in time frames from milliseconds to several nanoseconds. Total number of control channels exceeds 6000. The control system structure is described and the hardware in VME and CAN standards is presented., Proceedings of the 25th Russian Particle Accelerator Conf., RuPAC2016, St. Petersburg, Russia
- Published
- 2017
- Full Text
- View/download PDF
18. CW 100 mA Electron RF Gun for Novosibirsk ERL FEL
- Author
-
Volkov, Vladimir, Arbuzov, Vladimir, Kenzhebulatov, Ermek, Kolobanov, Evegeniy, Kondakov, Alexey, Kozyrev, Evgueni, Krutikhin, Sergey, Kuptsov, Igor, Kurkin, Grigory, Motygin, Sergey, Murasev, Anatoly, Ovchar, Vladimir, Petrov, Victor, Pilan, Andrey, Repkov, Anatoly, Scheglov, Mikhail, Sedlyarov, Igor, Serednyakov, Stanislav, Shevchenko, Oleg, Tararyshkin, Sergey, Tribendis, Alexey, and Vinokurov, Nikolay
- Subjects
Ion sources and electron guns ,Accelerator Physics - Abstract
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., Proceedings of the 25th Russian Particle Accelerator Conf., RuPAC2016, St. Petersburg, Russia
- Published
- 2017
- Full Text
- View/download PDF
19. First Lasing of the Third Stage of Novosibirsk FEL
- Author
-
Shevchenko, Oleg, Arbuzov, Vladimir, Chernov, Konstantin, Davidyuk, Igor, Dementyev, Evgeny, Dovzhenko, Boris, Getmanov, Yaroslav, Knyazev, Boris, Kolobanov, Evegeniy, Kondakov, Alexey, Kozak, Victor, Kozyrev, Evgueni, Kubarev, Vitaly, Kulipanov, Gennady, Kuper, Eduard, Kuptsov, Igor, Kurkin, Grigory, Medvedev, Lev, Motygin, Sergey, Osipov, Vadim, Ovchar, Vladimir, Petrov, Victor, Pilan, Andrey, Popik, Vasiliy, Repkov, Vladimir, Salikova, Tatiana, Scheglov, Mikhail, Sedlyarov, Igor, Serdobintsev, Gennady, Serednyakov, Stanislav, Skrinsky, Alexander, Tararyshkin, Sergey, Tcheskidov, Vladimir, Tribendis, Alexey, Vinokurov, Nikolay, and Vobly, Pavel
- Subjects
Accelerator Physics ,First Lasing - Abstract
Novosibirsk FEL facility is based on the first in the world multi-turn energy recovery linac (ERL). It comprises three FELs (stages). FELs on the first and the second tracks were commissioned in 2004 and 2009 respectively and operate for users now. The third stage FEL is installed on the fourth track of the ERL. It includes three undulator sections and 40-meters-long optical cavity. The design tuning range of this FEL is from 5 to 20 microns and the design average power at bunch repetition rate 3.74 MHz is about 1 kW. Recent results of the third stage FEL commissioning are reported., Proceedings of the 37th International Free Electron Laser Conference, FEL2015, Daejeon, Republic of Korea
- Published
- 2015
- Full Text
- View/download PDF
20. Electronic Modulation of THz Radiation at NovoFEL: Technical Aspects and Possible Applications.
- Author
-
Shevchenko, Oleg A., Melnikov, Anatoly R., Tararyshkin, Sergey V., Getmanov, Yaroslav V., Serednyakov, Stanislav S., Bykov, Evgeny V., Kubarev, Vitaly V., Fedin, Matvey V., and Veber, Sergey L.
- Subjects
ELECTRONIC modulation ,FREE electron lasers ,OPTICAL resonators ,RADIATION ,ELECTRON paramagnetic resonance ,TIME-resolved spectroscopy - Abstract
The Novosibirsk Free Electron Laser (NovoFEL) facility is able to produce high-power tunable terahertz (THz) laser radiation in quasi-continuous mode. The ability to control/shape this THz radiation is required in a number of user experiments. In this work we propose a modulation approach suitable for free electron lasers based on recuperation design. It allows for generating THz macropulses of a desirable length, down to several microseconds (limited by a quality factor of FEL optical resonator). Using this approach, macropulses in the time window from several microseconds to several hundred microseconds have been shown for three possible frequency ranges: mid-infrared (~1100 cm
−1 ), far-infrared (~200 cm−1 ) and THz (~40 cm−1 ). In each case, the observed rise and decay of the macropulse have been measured and interpreted. The advantage of using short macropulses at the maximum peak power available has been demonstrated with the time-resolved Electron Paramagnetic Resonance (EPR) spectroscopy. [ABSTRACT FROM AUTHOR]- Published
- 2019
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.