In vista della scadenza del bando FIRB FUTURO IN RICERCA , fissata per lunedì 4 febbraio, i ricercatori interni ed esterni sono incoraggiati a presentare. 13 Maggio Riapertura bando LLP – ERASMUS a.a. / January 31, Three-year FIRB young investigator fellowship in Bioinformatics. scarica il bando n. , Concorso per il conferimento di n. 1 borsa di formazione tecnica per diplomati da usufruire presso la sezione di Genova,
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Dependence of the charge density on laser intensity. Opening position 1 year.
The slope of the linear curve fitting data indicates a single-photoemission process. Motivations of the technical choices are made and expected performances are reported. Comb beams are sub-picosecond, high-brightness electron bunch trains generated via the velocity bunching technique.
We investigate the transformer ratio for different shapes of a single driving bunch. 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. Following the idea of plasma wave banvo excitation driven by fieb train of short bunches, we have started to study the requirements in terms of plasma for SPARC-LAB.
In particular, here we focus on the ionization process; 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.
For further information www. Rotation of the longitudinal phase space of 4-bunches train under RF compression. 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.
Borse di studio, di perfezionamento virb di post-dottorato per il A 1D model of plasma wakefield excitation based on relativistic fidb cold fluid and Maxwell equations has been implemented. Computational homology modelling and experimental molecular biology. We have experimental investigated the emission of trains of SASE FEL radiation pulses with two-level energy spectra based on the FEL emission driven by a two-bunches electron beam with time and energy separation tunable with linac settings.
Diversity and nando of satellite DNAs. Although the model does not take into account the band breaking and the interaction of the driving bunch with the plasma through propagation, it allows to study wakefield excitation in 1D with high flexibility in the definition of the driving bunch characteristics. D course in Physics and Chemistry of the Biological Systems. February Bologna Winter School It is found that the transformer ratio critically depends on the bunch shape and on the density ratio.
In this setup, beam quality, in terms of 6D volume in phase space, will be the main concern. The ratio of the maximum accelerating field behind the driving beam bunch and the maximum decelerating field inside the driving beam bunch is defined as Transformer Ratio, a key parameter that determines the energy gain in particle acceleration.
They are used to drive an optical amplification chain of different lasers along the experimental area photo-injector, seeding, probe or interaction laser. Plasma wakefield acceleration is the most promising acceleration technique known nowadays, able to provide bnado high accelerating fields 10— GV m -1enabling acceleration of electrons to GeV energy in few centimetres. M Brains-in Competition 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.
The laser clients of the synchronization system are typically IR laser oscillators with repetition rate of hundreds MHz.
Dottorato in fisica e chimica dei sistemi biologici. A proper phasing of the two pulses allows acceleration of electrons from the injection energy of MeV up to about MeV for a 8 cm long capillary. Applications of Graph Theory in Computational Biology.
Narrow-band THz radiation spectrum. 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. Two main schemes are currently investigated, ultra-short single bunch and multi-bunches comb beams, to generate high energy per pulse, broad and narrow spectral bandwidth THz radiation, respectively. Intensive numerical simulations will be performed to match the plasma flow characteristics to the particle acceleration scheme by improving the flrb of the plasma channel and by finding the suitable shape of the gas injection and extraction chambers, as well as the right pressure levels.
Futuro in Ricerca
In the first one, the laser pulse is not guided and acceleration occurs on the natural Rayleigh range of the laser itself, yielding an accelerated beam which can be considered as a proof of principle experiment. The laser pulse, 25 f s long, focused down to 65 microns into the capillary is injected ahead of the bunch, drives a weakly non-linear plasma wave with fifb of about microns. The profile of the electron bunch field is electro-optically encoded into a Ti: 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.
Bioinformatics for Environmental Genomics.
This means that the RMO phase noise high frequency components cannot be followed and they should be very low to ensure a low time bandp between laser pulse and RF linac phase.
What is protein function? Photo-cathodes based on Pb thin films have been synthesized and characterized both morphologically and structurally by scanning electron microscopy, x-ray diffractometry and atomic force microscopy.