Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Velizar Miltchev"'
Autor:
Tim Plath, Christoph Lechner, Velizar Miltchev, Philipp Amstutz, Nagitha Ekanayake, Leslie Lamberto Lazzarino, Theophilos Maltezopoulos, Jörn Bödewadt, Tim Laarmann, Jörg Roßbach
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract Free-electron lasers are unique sources of intense and ultra-short x-ray pulses that led to major scientific breakthroughs across disciplines from matter to materials and life sciences. The essential element of these devices are micrometer-s
Externí odkaz:
https://doaj.org/article/152b314702ee4f269893f877db98b6cd
Autor:
Armin Azima, Jörn Bödewadt, Oliver Becker, Stefan Düsterer, Nagitha Ekanayake, Rosen Ivanov, Mehdi M Kazemi, Leslie Lamberto Lazzarino, Christoph Lechner, Theophilos Maltezopoulos, Bastian Manschwetus, Velizar Miltchev, Jost Müller, Tim Plath, Andreas Przystawik, Marek Wieland, Ralph Assmann, Ingmar Hartl, Tim Laarmann, Jörg Rossbach, Wilfried Wurth, Markus Drescher
Publikováno v:
New Journal of Physics, Vol 20, Iss 1, p 013010 (2018)
We report on a direct time-domain measurement of the temporal properties of a seeded free-electron laser pulse in the extreme ultraviolet spectral range. Utilizing the oscillating electromagnetic field of terahertz radiation, a single-shot THz streak
Externí odkaz:
https://doaj.org/article/f8eb201ba88348b28e804f8b8e2ef51b
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 16, Iss 10, p 100702 (2013)
It has been shown that the direct seeding can enhance the performance of a free-electron laser (FEL) in terms of its spectral, temporal, and coherence properties and reduces fluctuations in FEL output energy and arrival-time jitter. The properties of
Externí odkaz:
https://doaj.org/article/2364b7794f684f0e9211b7ea8ca84e57
Autor:
Theophilos Maltezopoulos, Christoph Lechner, Tim Plath, Nagitha Ekanayake, Jörg Roßbach, Leslie Lamberto Lazzarino, Philipp Amstutz, Jörn Bödewadt, Velizar Miltchev, Tim Laarmann
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Scientific Reports
Scientific reports 7(1), 2431 (2017). doi:10.1038/s41598-017-02184-3
Scientific Reports
Scientific reports 7(1), 2431 (2017). doi:10.1038/s41598-017-02184-3
Scientific reports 7(1), 2431(2017). doi:10.1038/s41598-017-02184-3
Free-electron lasers are unique sources of intense and ultra-short x-ray pulses that led to major scientific breakthroughs across disciplines from matter to materials and life s
Free-electron lasers are unique sources of intense and ultra-short x-ray pulses that led to major scientific breakthroughs across disciplines from matter to materials and life s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12c66a831beab6cf594d359aefa14790
Autor:
Andreas Przystawik, Markus Drescher, Leslie Lamberto Lazzarino, Jörn Bödewadt, Jörg Rossbach, Oliver Becker, Nagitha Ekanayake, Ingmar Hartl, Armin Azima, R. Ivanov, Stefan Düsterer, Tim Plath, Ralph Assmann, Velizar Miltchev, Marek Wieland, Tim Laarmann, Theophilos Maltezopoulos, Mehdi Mohammad Kazemi, Bastian Manschwetus, Christoph Lechner, Jost Müller, Wilfried Wurth
Publikováno v:
New journal of physics 20, 013010 (2018). doi:10.1088/1367-2630/aa9b4c
New journal of physics 20, 013010 (2017). doi:10.1088/1367-2630/aa9b4c
We report on a direct time-domain measurement of the temporal properties of a seeded free-electron laser pulse in the extreme ultraviolet spectral range. Utilizing the oscill
We report on a direct time-domain measurement of the temporal properties of a seeded free-electron laser pulse in the extreme ultraviolet spectral range. Utilizing the oscill
Autor:
Velizar Miltchev, Jean-Paul Carneiro, Thomas Weiland, Mikhail Krasilnikov, Carlo Pagani, R. Cee, E. Jaeschke, Wolfgang Sandner, Dirk Lipka, Siegfried Schreiber, Daniele Sertore, Frank Stephan, Paolo Michelato, I. Tsakov, Stefan Setzer, J. Bähr, I. Bohnet, Wolfgang Franz Otto Müller, L. Staykov, Jörg Roßbach, J.H. Han, H.-J. Grabosch, Wolfgang Ackermann, D. Krämer, M.v. Hartrott, B. Petrossyan, K. Abrahamyan, Ingo Will, Klaus Flöttmann, U. Gensch, Anne Oppelt
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 528:360-365
The Photo Injector Test Facility at DESY Zeuthen (PITZ) was built to test and optimize electron sources for Free Electron Lasers and future linear colliders. The focus is on the production of intense electron beams with minimum transverse emittance a
Autor:
Velizar Miltchev, M.v. Hartrott, R. Schumann, Jean-Paul Carneiro, R. Bakker, B. Petrossyan, K. Abrahamyan, H.J. Graboschi, J. Bähr, A. Liero, Wolfgang Sandner, E. Jaeschke, R. Cee, Carlo Pagani, D. Krämer, Paolo Michelato, V. Djordjadze, Ingo Will, Daniele Sertore, Stefan Setzer, Thomas Weiland, Z. Li, I. Bohnet, Dirk Lipka, Mikhail Krassilnikov, Anne Oppelt, Harald Redlin, P. Piot, Jörg Roßbach, Klaus Flöttmann, Siegfried Schreiber, Frank Stephan, I. Tsakov, U. Gensch
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 507:210-214
The Photo Injector Test facility at DESY Zeuthen (PITZ) was built to develop electron sources for the TESLA Test Facility Free Electron Laser and future linear colliders. The main goal is to study the production of minimum transverse emittance beams
Autor:
Laura Monaco, Velizar Miltchev, Frank Stephan, J. Bähr, Klaus Flöttmann, M.v. Hartrott, J. Ronsch, Paolo Michelato, Sabine Riemann, Mikhail Krasilnikov, Bagrat Petrosyan, J.H. Han, L. Staykov, Daniele Sertore, Anne Oppelt, Siegfried Schreiber, H.-J. Grabosch
Publikováno v:
Proceedings of the 2005 Particle Accelerator Conference.
For photocathode rf guns, the amount of dark current depends on the cavity surface as well as on the photocathodes. Smooth conditioning reduces the amount of dark current. Multipacting in the gun cavity changes the surface status of the cathodes and
Autor:
Thomas Weiland, Dirk Lipka, J. Ronsch, D. Krämer, Velizar Miltchev, Sascha Schnepp, Jean-Paul Carneiro, W. Sandner, Wolfgang Franz Otto Müller, Frank Stephan, I. Tsakov, G. Dimitrov, Laura Monaco, M.v. Hartrott, U. Gensch, Klaus Flöttmann, S. Khodyachykh, Wolfgang Ackermann, D. Richter, K. Abrahamyan, J.H. Han, Carlo Pagani, L. Staykov, Mikhail Krasilnikov, G. Asova, Ingo Will, J. Bähr, Paolo Michelato, E. Jaeschke, Joerg Rossbach, Daniele Sertore, Bagrat Petrosyan, Siegfried Schreiber, H.-J. Grabosch, S. Liu, Anne Oppelt, Sabine Riemann
Publikováno v:
Proceedings of the 2005 Particle Accelerator Conference.
The ability to produce high brightness electron beams as required for modern Free Electron Lasers (FELs) has been demonstrated during the first stage of the Photo Injector Test Facility at DESY Zeuthen (PITZ1). The electron source optimization at PIT
Autor:
J. Bähr, Bagrat Petrosyan, L. Staykov, H.-J. Grabosch, M.v. Hartrott, J.H. Han, Anne Oppelt, Velizar Miltchev, Frank Stephan, Mikhail Krasilnikov
Publikováno v:
Proceedings of the 2005 Particle Accelerator Conference.
A wide range of rf photo injector parameters has to be optimized in order to achieve an electron source performance as required for linac based high gain FELs. Some of the machine parameters can not be precisely controlled by direct measurements, whe