IPAC2014 - List of Authors (Potylitsyn, A.)

Paper	Title	Page
THPME115	EUV Radiation Generated by a 5.7 MeV Electron Beam in Multilayer Periodical Structure	3503
	S.R. Uglov, A. Potylitsyn, L.G. Sukhikh, A.V. Vukolov TPU, Tomsk, Russia G. Kube DESY, Hamburg, Germany
	Funding: This work was partly supported by the by the Ministry of Education Science of the Russian Federation, contract 2.1799.2011. Recent experience from linac based FELs like LCLS or FLASH shows that transverse beam imaging based on optical transition radiation (OTR) might fail due to coherence effects in the OTR emission process. In order to overcome the problem it was proposed to use transition radiation (TR) in the EUV region. For a reliable beam diagnostics however, an increase of the light output in the EUV region is required. One possibility to increase the radiation yield in the geometry of interest (target tilt angles 22.5 or 45 degrees) is to exchange the conventional monolayer target by a multilayer structure which acts as a multilayer X-ray mirror for EUV radiation. In this case, two radiation components are expected to contribute to the measured signal, diffracted transition radiation (DTR) and parametric radiation (PR). In this report we present results of an experimental investigation of EUV TR generated by a 5.7 MeV electron beam at monolayer and multilayer targets. The angular characteristics of the radiation was investigated and compared with theoretical models. L.G. Sukhikh, S. Bajt, G. Kube et al., in Proc. IPAC'12, MOPPR019, New Orleans, Louisiana, USA, p.819 (2012) ** N.Nasonov, V.Kaplin, S.Uglov, e al., Phys. Rev. E 68 (2003) 036504
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME115
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THPME158	Coherent Diffraction and Cherenkov Radiation from Short Electron Bunches in Fibers	3632
	G.A. Naumenko, V.V. Bleko, A. Potylitsyn, V.V. Soboleva TPU, Tomsk, Russia
	Funding: This work is particularly supported by grant of Russian MES Program "Nauka" number 2456 The ability to use a radiation of relativistic electrons in optical fibers for beam diagnostics was proposed by X. Artu recently . In the cited work the properties of different types of radiation, such as diffraction and Cherenkov radiation in the visible region, induced in fibers by relativistic electron were considered. In our report we present the results of experimental investigation of such a phenomenon for millimeter wavelength radiation. The origin and properties of radiation in fibers were investigated for different geometries of fiber position in respect to the electron beam. The spectral characteristics and dependence on the orientation angle of fibers relative to the electron beam were investigated. One of the useful properties of fibers is the fiber flexibility. The characteristics of radiation accepted by flexible fiber with diameter D=11 mm and length L=600 mm were investigated as a function of curvature radius of the fiber R. The experimental results show the allowable transport factor of radiation for the condition L>R>>D. We believe that fibers for mm and submm range can be used for beam diagnostics also. X Artru and C. Ray, Nucl. Inst. Meth. B 309 (2013)
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME158
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THPME159	Double Diffraction Radiation Target Interferometry for Micro-train Beam Diagnostics	3635
SUSPSNE073	use link to see paper's listing under its alternate paper code
	D.A. Shkitov, A. Potylitsyn TPU, Tomsk, Russia A.S. Aryshev, J. Urakawa KEK, Ibaraki, Japan
	Funding: This work was supported by grant of Russian Ministry of Education and Science program “Nauka” number 2.1799.2011. Recently our group starts to investigate a feasibility of double diffraction radiation (DR) target interferometry for non-invasive micro-train beam diagnostics at KEK: LUCX facility. Double DR target consists of two metal plates and one of them can be moved relative to another along the beam trajectory. Micro-train beam is a sequence of short electron bunches with sub-ps spacing. As it was shown* double DR target can be used for such a beam diagnostics measuring DR yield versus plates displacement. The obtained tuning curve (interferogram) allows to determine a number of bunches within the micro-train and spacing between them. In order to design a reliable device for this aim we have to take into account different double DR target interferometer plate’s adjustment inaccuracies. These inaccuracies can be as follows: inaccuracies in the mutual adjustment of plates tilt angles to the beam trajectory, outer plate edge shift along the beam trajectory and other. The influence of the bunch form-factor shape is also considered. We investigated double DR target preparation accuracy requirements in order to minimize measurements uncertainties and increase interferometer resolution. * Skitov D.A. et. al., J. Phys.: Conf. Ser. 517, 012024 (2014).
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME159
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Paper

Title

Page

EUV Radiation Generated by a 5.7 MeV Electron Beam in Multilayer Periodical Structure

3503

S.R. Uglov, A. Potylitsyn, L.G. Sukhikh, A.V. Vukolov
TPU, Tomsk, Russia
G. Kube
DESY, Hamburg, Germany

Funding: This work was partly supported by the by the Ministry of Education Science of the Russian Federation, contract 2.1799.2011.
Recent experience from linac based FELs like LCLS or FLASH shows that transverse beam imaging based on optical transition radiation (OTR) might fail due to coherence effects in the OTR emission process. In order to overcome the problem it was proposed to use transition radiation (TR) in the EUV region*. For a reliable beam diagnostics however, an increase of the light output in the EUV region is required. One possibility to increase the radiation yield in the geometry of interest (target tilt angles 22.5 or 45 degrees) is to exchange the conventional monolayer target by a multilayer structure which acts as a multilayer X-ray mirror for EUV radiation. In this case, two radiation components are expected to contribute to the measured signal, diffracted transition radiation (DTR) and parametric radiation (PR)**. In this report we present results of an experimental investigation of EUV TR generated by a 5.7 MeV electron beam at monolayer and multilayer targets. The angular characteristics of the radiation was investigated and compared with theoretical models.
* L.G. Sukhikh, S. Bajt, G. Kube et al., in Proc. IPAC'12, MOPPR019, New Orleans, Louisiana, USA, p.819 (2012)
** N.Nasonov, V.Kaplin, S.Uglov, e al., Phys. Rev. E 68 (2003) 036504

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME115

Export •

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

THPME158

Coherent Diffraction and Cherenkov Radiation from Short Electron Bunches in Fibers

3632

G.A. Naumenko, V.V. Bleko, A. Potylitsyn, V.V. Soboleva
TPU, Tomsk, Russia

Funding: This work is particularly supported by grant of Russian MES Program "Nauka" number 2456
The ability to use a radiation of relativistic electrons in optical fibers for beam diagnostics was proposed by X. Artu recently *. In the cited work the properties of different types of radiation, such as diffraction and Cherenkov radiation in the visible region, induced in fibers by relativistic electron were considered. In our report we present the results of experimental investigation of such a phenomenon for millimeter wavelength radiation. The origin and properties of radiation in fibers were investigated for different geometries of fiber position in respect to the electron beam. The spectral characteristics and dependence on the orientation angle of fibers relative to the electron beam were investigated. One of the useful properties of fibers is the fiber flexibility. The characteristics of radiation accepted by flexible fiber with diameter D=11 mm and length L=600 mm were investigated as a function of curvature radius of the fiber R. The experimental results show the allowable transport factor of radiation for the condition L>R>>D. We believe that fibers for mm and submm range can be used for beam diagnostics also.
* X Artru and C. Ray, Nucl. Inst. Meth. B 309 (2013)

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME158

Export •

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

THPME159

Double Diffraction Radiation Target Interferometry for Micro-train Beam Diagnostics

3635

SUSPSNE073

use link to see paper's listing under its alternate paper code

D.A. Shkitov, A. Potylitsyn
TPU, Tomsk, Russia
A.S. Aryshev, J. Urakawa
KEK, Ibaraki, Japan

Funding: This work was supported by grant of Russian Ministry of Education and Science program “Nauka” number 2.1799.2011.
Recently our group starts to investigate a feasibility of double diffraction radiation (DR) target interferometry for non-invasive micro-train beam diagnostics at KEK: LUCX facility. Double DR target consists of two metal plates and one of them can be moved relative to another along the beam trajectory. Micro-train beam is a sequence of short electron bunches with sub-ps spacing. As it was shown* double DR target can be used for such a beam diagnostics measuring DR yield versus plates displacement. The obtained tuning curve (interferogram) allows to determine a number of bunches within the micro-train and spacing between them. In order to design a reliable device for this aim we have to take into account different double DR target interferometer plate’s adjustment inaccuracies. These inaccuracies can be as follows: inaccuracies in the mutual adjustment of plates tilt angles to the beam trajectory, outer plate edge shift along the beam trajectory and other. The influence of the bunch form-factor shape is also considered. We investigated double DR target preparation accuracy requirements in order to minimize measurements uncertainties and increase interferometer resolution.
* Skitov D.A. et. al., J. Phys.: Conf. Ser. 517, 012024 (2014).

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2014-THPME159

Export •

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