XFEL Simulations with SIMPLEX and GENESIS (Some preliminary results)

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Presentation transcript:

XFEL Simulations with SIMPLEX and GENESIS (Some preliminary results) Vitali Khachatryan CANDLE – DESY/MPY XFEL Simulations with SIMPLEX and GENESIS (Some preliminary results) OUTLINE 1. Simulation software. 2. Test with sample input files. 3. Beam parameters. 4. Focusing lattice. 5. Some results of XFEL study with SIMPLEX and GENESIS 6.Questions 27.11.2006

SIMULATION SOFTWARE GENESIS (2001) SIMPLEX (2005) http://radiant.harima.riken.go.jp 27.11.2006

TEST WITH SAMPLE INPUT FILES 27.11.2006

27.11.2006

SASE1 undulator line description (S2E meeting, March 10, 2004) 27.11.2006

Beta function in the SASE1 undulator 27.11.2006

Beam parameters Bunch parameters at the entrance of the undulator system SASE1 27.11.2006

POWER PLOTS (SASE1) 27.11.2006

BEAM OFFSET AT THE ENTRANCE OF THE UNDULATOR (SASE1) Peak Power [GW] GENESIS SIMPLEX No offsets 21.17 17.4 0.1 Sigma offsets 20.67 16.3 1.0 Sigma offsets 0.0173 0.004 27.11.2006

QUESTIONS If given arrangement of undulator system is adequate, is 8 cm space enough for vertical corrector? What is the most appropriate criterion to define FEL performance (brilliance, saturation length, # of photons)? 27.11.2006

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