Confining continuous manipulations of accelerator beam-line optics

Continuous Electron Beam Accelerator Facility,

We use local quark-hadron duality to estimate the purely nonperturbative soft contribution to the γ * p → ∆ form factors. Our results are in agreement with existing experimental data. We predict that the ratio G * E (Q 2)/G * M (Q 2) is small for all accessible Q 2 , in contrast to the pQCD expectations that G * E (Q 2) → −G * M (Q 2).

Database for Accelerator Optics

The A utom ated B eam Steering and Shaping (A B S) project aim s to provide an autom atic, generic and reliable softw are system to ensure the provision of high quality particle beam s to users of an accelerator com plex. A n im portant com ponent of this project is the access to validated reference data describing the different com ponents instaled in the m achines, such as m onitors as w el a...

FINAL-FOCUS OPTICS FOR THE LHeC ELECTRON BEAM LINE∗

One of the options considered for the ECFA-CERNNuPECC design study for a Large Hadron electron Collider (LHeC) [1] based on the LHC is adding a recirculating energy-recovery linac tangential to the LHC. First designs of the electron Final Focus System have shown the need to correct the chromatic aberrations. Two designs using different approaches for the chromaticity correction are compared, na...

Fermi accelerator in atom optics

We study the classical and quantum dynamics of a Fermi accelerator realized by an atom bouncing off a modulated atomic mirror. We find that in a window of the modulation amplitude, dynamical localization occurs in both position and momentum. A recent experiment @A. Steane, P. Szriftgiser, P. Desbiolles, and J. Dalibard, Phys. Rev. Lett. 74, 4972 ~1995!# shows that this system can be implemented...

Beam Optics