Conveners
WG3 - Electron beams from electromagnetic structures, including dielectric and laser-driven
- James Rosenzweig (UCLA)
WG3 - Electron beams from electromagnetic structures, including dielectric and laser-driven
- James Rosenzweig (UCLA)
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Prof. Levi Schachter (Technion - Israel Institute of Technology)03/06/2013, 15:00WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driventalkA train of micro-bunches generates in a passive dielectric loaded waveguide an electro-magnetic wake which propagates at the speed of the particles. This wake consists of propagating modes provided the electrons exceed the Cerenkov velocity. If the material is replaced with an active dielectric, identical to that of a laser, the wake is amplified. Another train of bunches, lagging many...Go to contribution page
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Mr Aimidula Aimierding (Cockcroft Institute and The University of Liverpool, UK)03/06/2013, 15:20WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driventalkDielectric laser accelerators (DLA) have great potential for applications, since they can generate acceleration gradients in the range of GeV/m and produce attosecond electron bunches. We numerically investigated the optimum structure dimensions of a dual-gratings accelerator structure made of silicon, the standard material for photolithography fabrication process and compare the accelerating...Go to contribution page
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Prof. Peter Hommelhoff (University of Erlangen and Max Planck Institute of Quantum Optics)03/06/2013, 15:45WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driventalkDielectric laser acceleration exploiting the large optical field strength of short laser pulses and the proximity of a dielectric structure can support high acceleration gradients and may therefore lead to much smaller accelerators, with future potential application in table-top free electron lasers. We report a proof-of-concept experiment demonstrating dielectric laser acceleration of...Go to contribution page
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Dr Sergey Kuzikov (Institute of Applied Physics, Russian Academy of Sciences)03/06/2013, 16:10WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driventalkA new helical RF accelerating structure, which can provide emittance control of the electron beam, is proposed. This structure combines properties of a linear accelerator and a damping ring simultaneously. It makes acceleration of straight on-axis beam as well as beam cooling due to the synchrotron radiation of particles. These properties are provided by specific slow eigen mode which consists...Go to contribution page
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David Alesini (LNF)03/06/2013, 16:30WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driventalkThe use of RF C-Band accelerating structures for electron acceleration and production of high quality beams has been recently proposed and adopted in several linac project all over the world. The current projects foreseen the use of an S-band injector combined with a C-band linac booster. C-band accelerating cavities have been also proposed for the ELI-NP project and, because of the...Go to contribution page
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Dr Sergey Kuzikov (Institute of Applied Physics, Russian Academy of Sciences)03/06/2013, 16:55WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driventalkThe concept of a Multi-Frequency Photoinjector (MUFFIN) is aimed the possibility of raising the breakdown threshold due to a reduction of surface exposure time to high fields, and due to the so-called anode-cathode effect. These properties help one to reach the desired beam energies (5-10 MeV) even in a two-frequency half-cell normal conducting cavity. Simulations that invoke standard...Go to contribution page
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Dr Manoel Conde (Argonne National Laboratory)03/06/2013, 18:00WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driventalkThe recently upgraded AWA facility is being commissioned. Operation of the new L-Band RF gun with a Cesium Telluride photocathode will generate long electron bunch trains, with high charge per bunch (up to 100 nC). The six new linac tanks will boost the beam energy to 75 MeV, making it an extremely well suited drive beam to excite wakefields in structures. One of the main goals of the facility...Go to contribution page
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Prof. James Rosenzweig (UCLA)03/06/2013, 18:25
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Dr Gennadiy Sotnikov (NSC Kharkov Institute of Physics and Technology)03/06/2013, 18:50WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driventalkOne of the advanced accelerator concepts is acceleration of particles by wakefields excited by relativistic electron bunches in dielectric structures. One problem of this method is the emittance growth of the accelerated beam due to its angular divergence. To focus the accelerated bunches, we suggest using a plasma that fills the vacuum channel of the dielectric unit. The plasma-dielectric...Go to contribution page
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Dr Alexei Kanareykin (Euclid Techlabs LLC/ANL)03/06/2013, 19:10