[PDF] Top 20 Beam quality study for a grating based dielectric laser driven accelerator

... 1–3 Dielectric materials can withstand electric fields roughly 2 orders of magnitude larger than metals at optical frequencies, and together with large electric fields from ultra-short laser pulses, they ... See full document

... Advanced Laser-Plasma High-Energy Accelerators towards X-rays (ALPHA-X) programme is developing laser-plasma accelerators for the production of ultra-short electron bunches with subsequent generation of ... See full document

... electron beam generation and acceleration within the plasma has to be ...and study new accelera- tion techniques, (ii) design new experiments, and (iii) analyse experimental ...plasma accelerator, ... See full document

... advanced accelerator concept, wakefield acceleration of charged particles in slow wave structure waveguides attracts much ...wakefield accelerator concepts depending on the use of slow wave structure ... See full document

... the laser energy is converted into electron beam energy with an efficiency approaching 10%, which is very high for a ...electron beam parameters are good: The mean electron beam energy for the ... See full document

... Difference- beam patterns are always obtained by using two sub-arrays excited out of ...the beam-pointing angle is getting smaller with the increment of the array aperture ...the beam-pointing ... See full document

... nickel based alloys such as Inconel 718 is challenging due to the excellent of its mechanical ...nickel based alloys by pre- heating the workpiece’s surface to reduce its strength and ...wave laser ... See full document

... a beam such as the one shown in Fig. 2, the boundary condition at the beam-vacuum interface should be considered prop- ...Electron beam surfaces are modulated as the beam is ... See full document

... 100 𝑓𝑠 to 250 𝑓𝑠 with other parameters unchanged. For the measurement without self- interference, the intensity profile in the imaging plane of the CCD camera will be widened in the X direction due to the contribution of ... See full document

... sub-mm beam widths at the screen positions but the energy-dependence inherent in transport and the fact that the electron beam energy is not captured simultaneously with ei- ther Lanex image makes direct ... See full document

... proton beam, which was analyzed by a hadronic cascade code PHITS [7], was used for CFD ...the beam window was set to ...the beam window and the border of the atmosphere, release of the radiant heat ... See full document

... e beam measurements over 60 shots were also recorded to analyze the fluctuation of the central positions, peak energy, and rms divergence angle of the e beams, as shown in ...the laser pulse and density ... See full document

... resulting beam compression or decompression varies the peak current, impacting the gain, even when cancelling the detuning effect with a ...the beam compression is isolated from the detuning effect, and ... See full document

... the accelerator and accelerator-driven-neutron-source technologies have rendered it possible to generate the substantial number of neutrons required for BNCT treatment, using a compact ... See full document

... the quality of the entire optical system increased, at the same time the technical difficulty is high, and greatly increase the ...final quality is still not ... See full document

... The beam quality of infrared laser is determined based on the absorption spectrum of photographic ...the beam quality of high power ...analyzed based on raster graphic or ... See full document

... Diamond beam using a novel wakefield accelerator ...electron beam to greater energies than the drive beam, allowing current light sources to generate harder X-rays from the existing ... See full document

... Figure 2: Experimental realization of MHCG microcavities. (a), (b) Scanning electron mi- croscope (SEM) images of the top and side views of a fabricated MHCG, respectively. (c), (d) Momentum-space PL spectra of the ... See full document

... field/electron beam [12]. Full 3D-Puffin simulations were used to model a LPA driven FEL which assumed Gaussian distributions for the electron pulse duration and other electron ... See full document

... Clinical electron beams with energies in the range of 4–25 MeV (1c) have finite penetration range in tissue, after which the dose falls off rapidly. As such, this radiation modality is suitable for treatment of ... See full document