نتایج جستجو برای: plasma accelerator
تعداد نتایج: 370240 فیلتر نتایج به سال:
During the past two decades of research, the ultra-relativistic beam-driven plasma wakefield accelerator (PWFA) concept has achieved many significant milestones. These include the demonstration of ultra-high gradient acceleration of electrons over meter-scale plasma accelerator structures, efficient acceleration of a narrow energy spread electron bunch at highgradients, positron acceleration us...
Plasma wakefield accelerators (PWFA) have recently shown substantial progress, attaining accelerating fields of more than 30 GV/m. The goal of the present experiment is to show that such accelerating fields can be sustained over the scale of a meter, resulting in a total energy gain comparable to the entire SLAC linear accelerator. We also seek to determine which factors limit the length of the...
Applications of laser-plasma accelerators demand low energy spread beams and high-efficiency operation. Achieving both requires flattening the accelerating fields by controlled beam loading plasma wave. Here, we optimize generation an electron bunch via localized ionization injection, such that combination injected current profile averaged acceleration dynamics results in optimal conditions. Th...
A simple 2D model of the bubble formation in a plasma wakefield accelerator is developed and investigated. It shown that case flat driver may consist two parts correspond to different types flow: laminar flow where electron streams do not cross two-stream (turbulent) flow. The turns out be robust symmetry breaking. Building-of we demonstrate non-relativistic electrons transverse wake field abse...
A Duoplasmatron ion source for the KOrea Multipurpose Accelerator Complex (KOMAC) linear accelerator has been constructed. High voltage tests up to 50 kV have been successfully completed. Hydrogen beam currents of up to 20 mA have been extracted at 30 kV extraction voltage. This source has shown a low normalized emittance of 0.5 π mm mrad from 90 % beam current and proton fraction over 50%. Hig...
The transverse properties of an electron beam are characterized by two quantities, the emittance which indicates the electron beam extent in the phase space and the angular momentum which allows for nonplanar electron trajectories. Whereas the emittance of electron beams produced in a laser-plasma accelerator has been measured in several experiments, their angular momentum has been scarcely stu...
The ideal drive beam current profile for the plasma wakefield accelerator (PWFA) has been predicted by 1D and 2D simulations to be characterized by a triangular ramp that rises linearly from head to tail, followed by a sharp drop. A technique for generating such bunches experimentally was recently demonstrated. We present here an adaptation of this scheme to generate ramped bunches using the 23...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید