Your Search Results

Use this resource - and many more! - in your textbook!

AcademicPub holds over eight million pieces of educational content for you to mix-and-match your way.

Experience the freedom of customizing your course pack with AcademicPub!
Not an educator but still interested in using this content? No problem! Visit our provider's page to contact the publisher and get permission directly.

Microbunching and beam break-up in DUV-FEL accelerator

By: Carr, L.; Sheehy, B.; Loos, H.; Shaftan, T.; Graves, W.S.; Limborg, C.; Huang, Z.;

2003 / IEEE / 0-7803-7738-9


This item was taken from the IEEE Conference ' Microbunching and beam break-up in DUV-FEL accelerator ' We present the results of electron beam longitudinal modulation studies in the DUV-FEL accelerator. For bunch length determination we used the ""zero-phasing"" method, based on a measurement of the chirped electron bunch energy spectra. The measurements revealed a spiky structure in the longitudinal phase space. A model based on space charge effect is considered to explain of the obtained phenomena. The analysis of the energy spectra has shown a sensitivity of the structure to the electron beam peak current, energy and longitudinal non-uniformity of the RF gun drive laser. Analytical calculations have demonstrated a qualitative agreement with experimental observations. Several experiments have been made to compare with theory; measured results are reviewed in this paper. The obtained effect is briefly discussed in relation to high brightness accelerators.