LCLSII FEL and Undulator Parameter Studies Update HeinzDieter

LCLS-II FEL and Undulator Parameter Studies Update Heinz-Dieter Nuhn – LCLS Undulator Group Leader March 10, 2010 LCLS-II Parameter Studies March 10, 2010 Heinz-Dieter Nuhn nuhn@slac. stanford. edu

helical linear <b> = 5 m, sg = 2. 8 Ipk = 2000 A, gexy= 0. 6 µm LCLS-II U 2 FEL Performance Estimate LCLS-II Parameter Studies March 10, 2010 2 2 Heinz-Dieter Nuhn nuhn@slac. stanford. edu

helical linear <b> = 5 m, sg = 2. 8 Ipk = 2000 A, gexy= 0. 6 µm LCLS-II U 2 FEL Performance Estimate LCLS-II Parameter Studies March 10, 2010 3 3 Heinz-Dieter Nuhn nuhn@slac. stanford. edu

helical <b> = 4 m, sg = 2. 8 Ipk = 2000 A, gexy= 0. 6 µm LCLS-II U 2 Small Period Undulator LCLS-II Parameter Studies March 10, 2010 4 4 Heinz-Dieter Nuhn nuhn@slac. stanford. edu

Variable Polarization Undulator Types Adjustable Phase Undulators APPLE-II Two adjustable phase undulators assembled in one device**. APPLE-III* *J. Bahrdt, et al. , UNDULATORS FOR THE BESSY SOFTX- RAY FEL, Proccedings of the 2004 FEL Conference, pp. 610 -613. DELTA **A. Temnykh, Phys. Rev. ST Accel. Beams 11, 120702 (2008). Variable Gap Fixed Gap Full K range available through row adjustment LCLS-II Parameter Studies March 10, 2010 5 5 Heinz-Dieter Nuhn nuhn@slac. stanford. edu

9. 6 Å 0. 52 Å 11 Å 0. 62 Å 23 15 Å Å 1. 24 1. 5 ÅÅ 130 m 15 Ge. V 3. 5 Ge. V LCLS-II Parameter Studies March 10, 2010 6 6 sg = 2. 8 Ipk = 3000 A, gexy= 0. 6 µm LCLS-I U 1 Enhancement Heinz-Dieter Nuhn nuhn@slac. stanford. edu

End of Presentation LCLS-II Parameter Studies March 10, 2010 7 7 Heinz-Dieter Nuhn nuhn@slac. stanford. edu