| Paper |
Title |
Page |
| MOPCH007 |
Undulators for a Seeded HGHG-FEL Test Bench at MAX-lab
|
59 |
| |
- J. Bahrdt, H.-J. Baecker, W.F. Frentrup, A. Gaupp, K. Goldammer, A. Meseck, M. Scheer
BESSY GmbH, Berlin
- S. Werin
MAX-lab, Lund
|
|
| |
Undulators for a Seeded HGHG-FEL at MAX-lab Within the European FEL Design Study a seeded HGHG-FEL will be set up at MAX-lab. In the modulator, a planar pure permanent magnet undulator, the 3rd harmonic of a Ti:Sapphire laser (267nm) interacts with the electron beam. In the following dispersive section the energy modulation is converted into a spatial modulation. The radiator emits at the third harmonic (89nm). The radiator has an APPLE II type magnetic structure providing full polarization control. The undulators and the dispersive section are currently built at BESSY. The electron beam height at MAX-lab of 400mm requires a specific design of the undulator carriages. The magnetic and mechanical design of the HGHG stage will be presented.
|
|
| MOPCH040 |
Simulations for the FEL Test Facility at MAX-lab within EUROFEL
|
127 |
| |
- S. Thorin, M. Brandin, S. Werin
MAX-lab, Lund
- M. Abo-Bakr, J. Bahrdt, K. Goldammer
BESSY GmbH, Berlin
|
|
| |
Within the EUROFEL project a High Gain Harmonic Generation Free Electron Laser will be constructed at MAX-lab in collaboration with BESSY. The electron bunches will be created in the existing MAX-lab injector and transported to the inside of the MAX II ring where the FEL undulators will be located. To predict FEL performance and stability, simulations of the photo injector, linac, recirculator, transport and undulator sections as well as start to end simulations have been carried out.
|
|
| MOPCH041 |
Design of a New Preinjector for the MAX Recirculator to be Used in EUROFEL
|
130 |
| |
- S. Werin, M. Brandin, T. Hansen, D. Kumbaro, L. Malmgren, S. Thorin
MAX-lab, Lund
- J. Bahrdt
BESSY GmbH, Berlin
|
|
| |
The MAX-lab recirculator injector will be equipped with a new preinjector system. The aim is to reduce the emittance, increase the charge and achieve a proper timing between accelerator and laser systems. All is aimed at the MAX-lab test facility for HG built in collaboration with BESSY in the EUROFEL program. The preinjector system consists of a photo cathode RF-gun with an emittance compensating solenoid. Special issues regard the injection of the new beam into the beam path of the MAX recirculator and the conservation of beam parameters.
|
|
| THPLS120 |
Tracking Simulations and Dynamic Multipole Shimming for Helical Undulators
|
3562 |
| |
- G. Wuestefeld, J. Bahrdt, M. Scheer
BESSY GmbH, Berlin
|
|
| |
Symplectic and fast tracking simulations of an APPLE type undulator for the BESSY II storage ring are presented. The simulation is based on a multiple harmonic decomposition of the magnetic field and on a generating function approach. Because of the relatively large undulator period length of 112 mm, corrections of the dynamic multipoles are required to achieve a good dynamical aperture.
|
|