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)
Prof.
Levi Schachter
(Technion - Israel Institute of Technology)
6/3/13, 3:00 PM
WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driven
talk
A 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...
Mr
Aimidula Aimierding
(Cockcroft Institute and The University of Liverpool, UK)
6/3/13, 3:20 PM
WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driven
talk
Dielectric 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...
Prof.
Peter Hommelhoff
(University of Erlangen and Max Planck Institute of Quantum Optics)
6/3/13, 3:45 PM
WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driven
talk
Dielectric 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...
Dr
Sergey Kuzikov
(Institute of Applied Physics, Russian Academy of Sciences)
6/3/13, 4:10 PM
WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driven
talk
A 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...
David Alesini
(LNF)
6/3/13, 4:30 PM
WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driven
talk
The 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...
Dr
Sergey Kuzikov
(Institute of Applied Physics, Russian Academy of Sciences)
6/3/13, 4:55 PM
WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driven
talk
The 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...
Dr
Manoel Conde
(Argonne National Laboratory)
6/3/13, 6:00 PM
WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driven
talk
The 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...
Prof.
James Rosenzweig
(UCLA)
6/3/13, 6:25 PM
Dr
Gennadiy Sotnikov
(NSC Kharkov Institute of Physics and Technology)
6/3/13, 6:50 PM
WG3 RF - Electron beams from electromagnetic structures, including dielectric and laser-driven
talk
One 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...
Dr
Alexei Kanareykin
(Euclid Techlabs LLC/ANL)
6/3/13, 7:10 PM
