RuPAC2016 - List of Keywords (undulator)

Paper	Title	Other Keywords	Page
TUXMH01	The European XFEL - Status and Commissioning	linac, electron, klystron, operation	11
	H. Weise DESY, Hamburg, Germany
	Funding: The European XFEL is funded by the respective funding agencies of the contributing countries. The European X-ray Free Electron Laser* in Hamburg, Germany, is being constructed by an international consortium. The facility is being built to offer photon beam of highest brilliance at wavelengths down to below 1 Angstrom. The accelerator complex with all its sections, the injector, the 17.5 GeV superconducting linac, bunch compressors, beam distribution systems etc. was built under the leadership of DESY. Seventeen European research institutes contributed to the accelerator complex and to the comprehensive infrastructure. DESY coordinates the European XFEL Accelerator Consortium but also contributes with many accelerator components, and the technical equipment of buildings, with its associated general infrastructure. With the finishing of the accelerator installation in autumn 2016, the first cool-down of the superconducting linac was started. Commissioning is next with the goal to demonstrate first lasing in spring 2017. Users are expected to use the first photon beams in 2017. A project overview and the status will be given illustrating the success of the collaborative work. * http://xfel.eu
	Slides TUXMH01 [48.625 MB]
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TUXMH02	Novosibirsk Free Electron Laser: Terahertz and Infrared Coherent Radiation Source	FEL, electron, radiation, laser	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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TUCAMH01	Planar Superconducting Undulator With Neutral Poles	vacuum, radiation, quadrupole, wiggler	21
	N.A. Mezentsev, S.V. Khrushchev, V.A. Shkaruba, V.M. Syrovatin, V.M. Tsukanov BINP SB RAS, Novosibirsk, Russia
	Superconducting undulator with use of neutral poles was proposed in Budker INP. Period of the undulator is 15.6 mm. Pole gap and magnetic field are equal to 8 mm and 1.2 T correspondingly. A prototype of the undulator with 15 periods was fabricated and successfully tested. Calculations, design and test results of the prototype in the report are presented. The cryogenic and vacuum system of the undulator are discussed.
	Slides TUCAMH01 [7.848 MB]
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TUPSA050	Electron Beam Stability in the Energy Recovery Linac for the Lithographic Free Electron Laser	electron, linac, cavity, radiation	319
	Ya.V. Getmanov, O.A. Shevchenko, N.A. Vinokurov BINP SB RAS, Novosibirsk, Russia N.A. Vinokurov NSU, Novosibirsk, Russia
	According to microelectronic production leaders the lithography based on the free electron laser (FEL) could become the main technology for the elements mass production with scale to 5 nm in the nearest future. One of the main problem is the absence of the working FEL with required parameters. The feasibility study of those FEL based on superconducting energy-recovery linac (ERL) was made in Budker INP. The ERL average current is limited by longitudinal and transverse instabilities, caused by interaction between electron beam and its induced fields in the superconducting cavities. The estimations of the threshold currents and ERL parameters were made.
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TUPSA052	First Order Perturbation Theory Evaluation of Initial Stage of Self Amplified Crystal-Based X-Ray Emission	electron, radiation, electromagnetic-fields, resonance	325
	A.I. Benediktovitch BSU, Minsk, Belarus, Belarus
	X-ray Free Electron Lasers open new revolutionary opportunities for investigations in materials science, chemistry, biology and other areas. However, due to high cost of construction and maintain, the access to these facilities for wide scientific community is quite limited. This motivates search for schemes of compact bright x-ray sources. The size of X-ray Free Electron Lasers is dictated by basic properties of undulator radiation: to produce x-rays with Angstrom wavelength from cm period undulator one needs electrons with energy in GeV range. If one considers the radiation mechanisms accompanying the propagation of electron beam through a crystal structure (channeling radiation, parametric x-ray radiation, Cherenkov radiation near K-edge), one can see that to get photons in x-ray range one needs electrons with energy of tens to hundreds MeV. One of the ways to get bright x-ray source based on crystal-assisted radiation mechanisms is to run the electrons in coherent radiation regime based on self amplified spontaneous emission (SASE). In the present contribution we will discuss under which conditions the SASE can start in the case of crystal-assisted radiation mechanisms. To investigate the initial stage of SASE process we use the first-order perturbation theory that enables to describe the collective beam response as effective susceptibility. Based on this approach we will analyze which experimental geometry would promising for the SASE process onset.
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Paper

Title

Other Keywords

Page

TUXMH01

The European XFEL - Status and Commissioning

linac, electron, klystron, operation

11

H. Weise
DESY, Hamburg, Germany

Funding: The European XFEL is funded by the respective funding agencies of the contributing countries.
The European X-ray Free Electron Laser* in Hamburg, Germany, is being constructed by an international consortium. The facility is being built to offer photon beam of highest brilliance at wavelengths down to below 1 Angstrom. The accelerator complex with all its sections, the injector, the 17.5 GeV superconducting linac, bunch compressors, beam distribution systems etc. was built under the leadership of DESY. Seventeen European research institutes contributed to the accelerator complex and to the comprehensive infrastructure. DESY coordinates the European XFEL Accelerator Consortium but also contributes with many accelerator components, and the technical equipment of buildings, with its associated general infrastructure. With the finishing of the accelerator installation in autumn 2016, the first cool-down of the superconducting linac was started. Commissioning is next with the goal to demonstrate first lasing in spring 2017. Users are expected to use the first photon beams in 2017. A project overview and the status will be given illustrating the success of the collaborative work.
* http://xfel.eu

Slides TUXMH01 [48.625 MB]

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TUXMH02

Novosibirsk Free Electron Laser: Terahertz and Infrared Coherent Radiation Source

FEL, electron, radiation, laser

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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TUCAMH01

Planar Superconducting Undulator With Neutral Poles

vacuum, radiation, quadrupole, wiggler

21

N.A. Mezentsev, S.V. Khrushchev, V.A. Shkaruba, V.M. Syrovatin, V.M. Tsukanov
BINP SB RAS, Novosibirsk, Russia

Superconducting undulator with use of neutral poles was proposed in Budker INP. Period of the undulator is 15.6 mm. Pole gap and magnetic field are equal to 8 mm and 1.2 T correspondingly. A prototype of the undulator with 15 periods was fabricated and successfully tested. Calculations, design and test results of the prototype in the report are presented. The cryogenic and vacuum system of the undulator are discussed.

Slides TUCAMH01 [7.848 MB]

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TUPSA050

Electron Beam Stability in the Energy Recovery Linac for the Lithographic Free Electron Laser

electron, linac, cavity, radiation

319

Ya.V. Getmanov, O.A. Shevchenko, N.A. Vinokurov
BINP SB RAS, Novosibirsk, Russia
N.A. Vinokurov
NSU, Novosibirsk, Russia

According to microelectronic production leaders the lithography based on the free electron laser (FEL) could become the main technology for the elements mass production with scale to 5 nm in the nearest future. One of the main problem is the absence of the working FEL with required parameters. The feasibility study of those FEL based on superconducting energy-recovery linac (ERL) was made in Budker INP. The ERL average current is limited by longitudinal and transverse instabilities, caused by interaction between electron beam and its induced fields in the superconducting cavities. The estimations of the threshold currents and ERL parameters were made.

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

TUPSA052

First Order Perturbation Theory Evaluation of Initial Stage of Self Amplified Crystal-Based X-Ray Emission

electron, radiation, electromagnetic-fields, resonance

325

A.I. Benediktovitch
BSU, Minsk, Belarus, Belarus

X-ray Free Electron Lasers open new revolutionary opportunities for investigations in materials science, chemistry, biology and other areas. However, due to high cost of construction and maintain, the access to these facilities for wide scientific community is quite limited. This motivates search for schemes of compact bright x-ray sources. The size of X-ray Free Electron Lasers is dictated by basic properties of undulator radiation: to produce x-rays with Angstrom wavelength from cm period undulator one needs electrons with energy in GeV range. If one considers the radiation mechanisms accompanying the propagation of electron beam through a crystal structure (channeling radiation, parametric x-ray radiation, Cherenkov radiation near K-edge), one can see that to get photons in x-ray range one needs electrons with energy of tens to hundreds MeV. One of the ways to get bright x-ray source based on crystal-assisted radiation mechanisms is to run the electrons in coherent radiation regime based on self amplified spontaneous emission (SASE). In the present contribution we will discuss under which conditions the SASE can start in the case of crystal-assisted radiation mechanisms. To investigate the initial stage of SASE process we use the first-order perturbation theory that enables to describe the collective beam response as effective susceptibility. Based on this approach we will analyze which experimental geometry would promising for the SASE process onset.

Export •

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