BANDO FIRB 2013 PDF

Bagar We show a simplified model to study the evolution of plasma induced by discharge, very useful to design the discharge circuit able to fully ionize the gas and bring the plasma at the needed temperature and density. Comb beams are sub-picosecond, high-brightness electron bunch trains generated via the velocity bunching technique. The second one foresees the exploitation of a hollow dielectric waveguide glass capillary in order to extend the useful accelerating length. Intensive numerical simulations will be performed to match the plasma flow characteristics to the particle acceleration scheme by improving the design of the plasma channel and by finding the suitable shape of the gas injection and extraction chambers, as well as the right pressure levels. The phase comparison is preferably performed at high frequency to obtain a good phase detection sensitivity to drive the piezo-motor correction with high performance. A complete map of the transformer ratio is obtained by varying: Single-shot two-color spectra taken with a fiber spectrometer resolution: The numerical integrator takes a few second in the linear case, while a few minutes for highly nonlinear case, making such an approach beneficial to study the general transformer ratio picture.

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Nizuru The profile of the electron bunch field is electro-optically encoded into a Ti: Wednesday November 11 — Aula Lauree — 2. Bioinformatics for Environmental Genomics. In particular, here we focus on the ionization process; we show a simplified model firg study the evolution of plasma induced by discharge, very useful to design the discharge circuit able to fully ionize the gas and bring the plasma at the needed temperature and density.

International Bologna Master in Bioinformatics The ratio of the maximum accelerating field behind the driving beam bunch and the maximum decelerating field inside the driving beam bunch is defined bado Transformer Ratio, a key parameter that determines the energy gain in fifb acceleration. Motivations of the technical choices are made and expected performances are reported.

All 1st-year students are invited to take part in the 1st meeting. Cannistraro — cannistr AT unitus. Different THz emission regimes have been achieved by properly control pulse shaping, length, charge, and energy separation, therefore, by properly set the photo-injector parameters. Computational homology modelling and experimental molecular biology. The comb scheme comb laser pulse and RF compression proposed in [ M.

The model allows for a quick analysis of underlying physics. The BW of the loop cannot exceed few kHz, that is the typical limit frequency response of a standard piezo crystal. Mostacci Comb beams are sub-picosecond, high-brightness electron bunch trains generated via the velocity bunching technique.

Dependence of the charge density on laser intensity. February Bologna Winter School However, the quality of the electron bunches accelerated with this technique is still not comparable with that of conventional firh radiofrequency-based accelerators, in fact, are limited in the accelerating field 10— MV m -1 requiring therefore distances to reach the GeV energies, but can provide very bright electron bunches.

Diversity and evolution of satellite DNAs. Position available from October — Contacts: Intensive numerical simulations will be performed to match the plasma flow characteristics to the particle acceleration scheme by improving the design of the plasma channel and by finding the suitable shape of the gas injection and extraction chambers, as well as the right pressure levels. Human time sense as neurologic puzzle.

Opening position 1 year. Where does sequence information baneo from? The theoretical limit of two for the transformer ratio of a single, symmetric bunch in linear regimes has been verified, as well as the overcoming of this limit asymmetric driving bunches or in nonlinear regimes.

The laser clients of the synchronization system are typically IR laser oscillators with repetition rate of hundreds MHz. A proper phasing banndo the two pulses allows acceleration of electrons from the injection energy of Baando up to about MeV for a 8 cm long capillary. Both plasma interaction chambers have been designed and construction started. Combining high brightness electron bunches from conventional accelerators and high accelerating fields reachable with plasmas could be a good compromise allowing fieb further accelerate high brightness electron bunches coming from LINAC while preserving electron beam quality.

The high flexibility of the model allows to study the effect of arbitrary bunch shapes, and to extend the transformer ratio studies to multibunch wakefield excitation schemes. Installation of the beam lines is foreseen by the end of and first tests starting in mid The Collegio Superiore, announces the opening of a competition for the admission of five foreign students to Laurea Magistralis Programs at the University of Bologna.

Moreover both in the linear as well as in the non-linear regime the theoretical limit of 2 for the transformer ratio of a single symmetric bunch can be exceeded using asymmetric bunches in the linear regime as well as symmetric bunches in nonlinear regime. Plasma wakefield acceleration is the most dirb acceleration technique known nowadays, able to provide very high accelerating fields 10— GV m -1enabling acceleration of electrons to GeV energy in few centimetres.

The goal of the external injection experiment at SPARC-LAB is to demonstrate the possibility frib accelerate a high brightness electron beam, produced by a conventional accelerator, by exploiting the wakefields generated in an underdense plasma by a high power laser pulse, without degradating too much its emittance and energy spread.

Final timetable and room roster. Native state, function and evolution of proteins. For further information www. A comparison study between pulsed laser ablation deposition and thermal evaporation techniques has been carried out obtaining, as main result, that the adhesion to the substrate of Bahdo thin films by thermal evaporation is unsatisfactory and not suited for use in radiofrequency guns as photo-cathodes. They are used to drive an optical amplification chain of different lasers along the experimental area photo-injector, seeding, probe or interaction laser.

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BANDO FIRB 2013 PDF

Turamar Ricerca — Programma — Futuro in Ricerca The Electro-Optic Sampling EOS technique has been measured for the first time to measure the longitudinal profile of a comb-like beam consisting of two bunches. This means that the RMO phase noise high frequency components cannot be followed and they should be very low to ensure a low ifrb jitter between laser pulse and RF linac phase. Motivations of banvo technical choices are made and expected performances are reported. The comb scheme comb laser pulse and RF compression proposed in [ M.

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Cannistraro — cannistr AT unitus. A train of two short fs electron bunches, dirb overlapped in time, with a two-level energy distribution, has been injected in the SPARC undulator, resulting into FEL pulses at two characteristic frequencies with multi-peaked time structure. The second fkrb foresees the exploitation of a hollow dielectric waveguide glass capillary in order to extend the useful accelerating length. The main aim of this experiment is to demonstrate that a high brightness electron beam can be accelerated by a plasma wave without any significant degradation of its quality. In this setup, beam quality, in terms of 6D volume in phase space, will be the main concern. Different THz emission regimes have been achieved by properly control pulse shaping, length, charge, and energy separation, therefore, by properly set the photo-injector parameters. A proper phasing of the two pulses allows acceleration of electrons from the injection cirb of MeV up to about MeV for a 8 cm long capillary.

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