Tesla Test Facility 4MFU FEL Undulator

Author(s) of the Magnetic Design : Y. M. Nikitina, J. Pflüger

1. "Two novel undulator schemes with quadrupolar focusing for the VUV-FEL at the TESLA test facility", Y. M. Nikitina, J. Pflüger NIM A375 (1996), 325

2. "Planar undulator schemes with strong focusing properties for the VUV-FEL at the TESLA test facility" J. Pflüger , Y. M. Nikitina, NIM A281 (1996), 554

Author of the Radia Simulation : J Chavanne, ESRF

Description : This is a 3D view of 4 periods of a 4 Magnet Focusing Undulator (4MFU) prototype constructed at DESY for the TESLA project. Only the lower part of the structure is shown for better clarity. The device consists of a conventional 27.3 mm period hybrid undulator combined with a FODO lattice of quadrupoles made of permanent magnets (in blue) .