High-gradient two-beam accelerator structure

Relativistic Klystron Two-Beam Accelerator*

Relativistic klystrons are being developed as an rf power source for high gradient accelerators applications which include large linear electronpositron colliders, compact accelerators, and FEL sources. In a relativistic klystron two-beam accelerator (RK-TBA), the drive beam passes through a large number of rf output structures. High conversion efficiency of electron beam energy to rf energy ca...

Proposed structure for a crossed-laser beam, GeV per meter gradient, vacuum electron linear accelerator

We propose a dielectric-based, multistaged, laser-driven electron linear accelerator structure operating in a vacuum that is capable of accelerating electrons to 1 TeV in 1 km. Our study shows that a GeV/m gradient is achievable using two 100 fs focused crossed-laser beams, repeated every 300 mm, operated at a peak power of 0.2 GW and an energy density of less than 2 J/cm on the accelerator str...

High Gradient Experiments on NLCTA Accelerator Structures

This paper presents new results of high-gradient studies performed on a 1.8 m traveling-wave accelerator section with detuned high-order deflecting modes. This .. structure was designed initially for studies of detuned structures and will be installed in the Next Linear Collider Test Accelerator (NLCTA). The paper describes the test set-up in the Accelerator Structure Test Area (ASTA) including...

Ultra-High Gradient Dielectric Wakefield Accelerator Experiments

Ultra-high gradient dielectric wakefield accelerators are a potential option for a linear collider afterburner since they are immune to the ion collapse and electron/positron asymmetry problems implicit in a plasma based afterburner. The first phase of an experiment to study the performance of dielectric Cerenkov wakefield accelerating structures at extremely high gradients in the GV/m range ha...

Experimental High Gradient Testing of a 17.1 GHz Photonic Band-gap Accelerator Structure