Výsledky vyhledávání - "Pavel Evtushenko"

Successful user operation of a superconducting radio-frequency photoelectron gun with Mg cathodes

Publikováno v: Physical Review Accelerators and Beams, Vol 24, Iss 3, p 033401 (2021)

At the electron linac for beams with high brilliance and low emittance (ELBE) center for high-power radiation sources, the second version of a superconducting radio-frequency (SRF) photoinjector has been put into operation and has been routinely appl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6ed8997275c93133a6c91bca38378cc
https://doaj.org/article/fb5940ebe6da4f0d9f140d0c731dc73f

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Progress Towards an FEL Oscillator Operating in the VUV to Soft X-ray Spectral Range

Autor: Shukui Zhang, J. M. Klopf, Gustavious P. Williams, David Douglas, F. E. Hannon, Chris Tennant, R. Legg, S.V. Benson, M. Shinn, Pavel Evtushenko, Carlos Hernandez-Garcia, George Neil

Publikováno v: Synchrotron Radiation News. 25:32-39

From the early days of free-electron lasers (FELs), the idea of lasing at wavelengths where gain media had not previously existed was one of the most attractive aspects of these devices. The spectral region in the soft X-ray was both inviting, due to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb67e280564d6962667df3d1b32c5414
https://doi.org/10.1080/08940886.2012.645422

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A proposed VUV oscillator-based FEL upgrade at Jefferson Lab

Autor: M. Shinn, George R. Neil, Shukui Zhang, S.V. Benson, David Douglas, R. Legg, Gustavious P. Williams, F. E. Hannon, Pavel Evtushenko, Chris Tennant, Carlos Hernandez-Garcia, J. M. Klopf

Publikováno v: Journal of Modern Optics. 58:1438-1451

Advances in superconducting linac technology offer the possibility of an upgrade of the Jefferson Lab Free Electron Laser (JLab FEL) facility to an oscillator-based VUV-FEL that would produce 6 × 1012 coherent 100 eV photons per pulse at multi-MHz r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48d97f78cce9ab3b10c28df3f457c389
https://doi.org/10.1080/09500340.2011.606375

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A simple gating technique for high-average-current photo-injectors

Autor: Shukui Zhang, Frederick Wilson, Stephen V. Benson, Pavel Evtushenko

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 629:11-15

This paper describes a simple method that substantially improves the production of gated electron bunch trains by totally suppressing undesired background photoemission between the trains. A device has been designed and tested with a drive laser for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12cde9864a956dacf54807eb29772d16
https://doi.org/10.1016/j.nima.2010.11.059

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The 4th generation light source at Jefferson Lab

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 582:14-17

A new generation of light sources is now coming on line to address more fundamental scientific challenges in the realms of the ultra-small and ultra-fast, as well as in dynamics. At Jefferson Lab we have developed an Energy Recovered Linac [1,2] base

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b31d66c5dd1714045d9bf6f65aecfb2b
https://doi.org/10.1016/j.nima.2007.08.088

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Test of the photocathode cooling system of the 312 cell SRF gun

Autor: Vladimir Volkov, R. Schurig, Pavel Evtushenko, Thorsten Kamps, Dirk Lipka, Ch. Schneider, Peter Michel, H. Bttig, J. Stephan, D. Janssen, Jochen Teichert, K. Möller, F. Staufenbiel, Ulf Lehnert, Rong Xiang, W.-D. Lehmann, Ingo Will

Publikováno v: Physica C: Superconductivity. 441:216-219

This paper presents results of the photocathode cooling system test of the 3 1 2 cell SRF gun at the Forschungszentrum Rossendorf. The SRF gun will produce short electron pulses with high bunch charges and low transverse emittance. The requirement fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::76b08663a786cbc1fff5d1b2c14a22e2
https://doi.org/10.1016/j.physc.2006.03.051

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Technology challenges for SRF guns as ERL sources in view of Rossendorf work

Autor: Petr Murcek, Karsten Moeller, Wolf-Dietrich Lehmann, R. Schurig, Thorsten Kamps, Dirk Lipka, Hartmut Buettig, Pavel Evtushenko, Juergen Stephan, F. Staufenbiel, Vladimir Volkov, D. Janssen, Peter Michel, Jochen Teichert, Christof Schneider, Ingo Will, Rong Xiang, Ulf Lehnert

Publikováno v: Nuclear Instruments and Methods in Physics Research A 557(2006), 80-86

After discussing the demands on ERL injectors for different projects, we will discuss the technological challenges and the obtained solutions for different parts of the SRF gun. The first point is the shape of the gun cavity and the tuning system. An

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e16de33777ba19392d1edb87557e081
https://doi.org/10.1016/j.nima.2005.10.120

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Mid-infrared free electron laser oscillator sources and semi-analytical formulae

Autor: Pavel Evtushenko, G. Dattoli, S. Pagnutti, P. L. Ottaviani

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 545:475-479

New data from mid-infrared free electron laser (FEL) oscillators operation are now available, we show that they can be reproduced on the basis of a fairly simple analysis. We use the recent experimental results from ELBE-FEL with a two-fold purpose:

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::deaaa14e0f6fb5d986256a87191ac71d
https://doi.org/10.1016/j.nima.2005.01.318

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