Transport of electron beams with initial transverse-longitudinal correlation

Longitudinal Phase-space and Transverse Slice Emittance Measurements of High-brightness Electron Beams

In order to measure the longitudinal phase-space profile of the electron beam, we are developing a compact measurement system consisting of a Cherenkov radiator, a bending magnet and a streak camera. The Cherenkov radiator with an aerogel is installed in the beam transport line, and the electron distribution in the longitudinal phase-space is obtained. Furthermore, a slice emittance measurement...

Limiting Effects in the Transverse-to-longitudinal Emittance Exchange Technique for Low Energy Relativistic Electron Beams

Transverse to longitudinal phase space manipulation hold great promises, e.g., as a potential technique for repartitioning the emittances of a beam. A proof-of-principle experiment to demonstrate the exchange of a low longitudinal emittance with a larger transverse emittance is in preparation at the Argonne Wakefield Accelerator using a ∼ 12 MeV electron beam. In this paper we explore the limit...

Electron correlation induced transverse delocalization and longitudinal confinement in excited states of phenyl-substituted polyacetylenes

Electron-electron interactions in general lead to both ground state and excited state confinement. We show, however, that in phenyl-substituted polyacetylenes electron-electron interactions cause enhanced delocalization of quasiparticles in the optically excited state from the backbone polyene chain into the phenyl groups, which in turn leads to enhanced confinement in the chain direction. This...

Coupling of flexural and longitudinal wave motion in a periodic structure with asymmetrically arranged transverse beams

Transverse and longitudinal dynamic modeling of bimorph piezoelectric actuators with investigating the effect of vibrational modes

  Bimorph piezoelectric cantilevered (BPC) actuators have recently received a great deal of attention in a variety of micro-electromechanical systems (MEMS) applications. Dynamic modeling of such actuators needs to be improved in order to enhance the control performance. Previous works have usually taken transv...