LCLS Accelerator S2E Files

1.0-nC, with CSR 1.0-nC, no CSR 0.2-nC, with CSR 0.2-nC, no CSR
MAD Input Files: LCLS MAD Deck LCLS MAD Deck
L2-Linac MAD Deck
L3-Linac MAD Deck
MAD Output Files: LCLS Optics/Element List LCLS Optics/Element List
Optics Plots Optics Plots
Elegant Input Files: Read Me
Lattice Files: LCLS 1-nC w/CSR LCLS 1-nC no CSR LCLS 200-pC w/CSR LCLS 200-pC no CSR
Commad Files: Elegant Command-file
Parmela output coords: 200k Particles 200k Particles
S-band Z-Wakes: Long-wake (5um-10mm)
Long-wake (1um-1mm)
S-band XY-Wakes: Tran-wake (5um-10mm)
Tran-wake (1um-1mm)
X-band Z-Wakes: Long-wake (20um-25mm)
X-band XY-Wakes: Tran-wake (50um-10mm)
Resistive-Wall Wakes: Al 1-in diam. (2um-10mm)
SS 1-in diam. (2um-10mm)

The binary SDDS 200k Files below are output from ELEGANT tracking through the LCLS linac using 200k macro-particles to 14.35 GeV at the LCLS undulator entrance. The point where the particles are dumped has been matched to betaX=20.15 m, alphaX=-1.144, betaY=14.947 m, alphaY=0.8180, which assumes the undulator starts with an X-focusing full-length quadrupole magnet. There are output tracking files for 1 nC and 0.2 nC bunch charge and both with and without a 1D CSR model (Elegant) included in the bends and nearby drifts, as listed below.

An ASCII SDDS-formatted Sliced Bunch File with time-dependent "slice" envelope parameters (e.g. current, energy spread, transverse emittance, etc.) was created from each of the ELEGANT SDDS 200k Files using a modified version of the "elegant2genesis" code. This particular version applies a triangular particle-to-grid weighting function to each particle, which lowers the noise level of the resultant envelope parameters as compared to the nominal "nearest grid point" weighting of the original code.

Note that this simplistic envelope description ignores higher order correlations (such as x' with gamma) and other phase space peculiarities of the compressed LCLS beam. One distinct peculiarity is the "S"ing of the LCLS beam head and tail in longitudinal phase space; in the envelope treatment, this results in a relatively large delta-gamma.

LCLS Accelerator Simulation Output Files

These are SDDS Elegant output files. The first row are older 3-kA files from 2002, while the next two include ESASE current modulation at two different laser wavelengths, and the final file is a 22JUN04 run consistent with the ESASE files above (3.4 kA), but with ESASE switched off.

1.0-nC, with CSR 1.0-nC, no CSR 0.2-nC, with CSR 0.2-nC, no CSR
Linac Output: SDDS 200k File SDDS 200k File SDDS 200k File SDDS 200k File
Sliced Bunch: Sliced Bunch File Sliced Bunch File Sliced Bunch File Sliced Bunch File
800-nm E-SASE: SDDS 8-spike file none none none
2200-nm E-SASE: SDDS 8-spike file none none none
no E-SASE: SDDS 200k file none SDDS 200k file none
17NOV04: SDDS 200k file none none none
Sliced Bunch: Sliced Bunch File none none none

LCLS Undulator Beam-Based Alignment Simulation Quadrupole Offset Files

Undulator Quad Offsets: 1 micron BPM res. 2 micron BPM res. 3 micron BPM res. 4 micron BPM res. 5 micron BPM res. 10 micron BPM res.
Undulator Trajector Plots: 1 micron BPM res. 2 micron BPM res. 3 micron BPM res. 4 micron BPM res. 5 micron BPM res. 10 micron BPM res.
Total Phase Error @1.5 Ang: phase err=82 deg phase err=256 deg phase err=538 deg phase err=924 deg phase err=1420 deg phase err=5550 deg

LCLS X-Ray FEL Test Case Specifications

Go to link for LCLS 150-MeV Injector Parmela Files(Consistent with S2E-Workshop Linac Elegant Files)

Go to link for LCLS 135-MeV Injector Parmela Files (Not to be used with S2E-Workshop Linac Elegant Files)

Go to link for SLAC Version of MAD

Go to link for Elegant

Last Updated: 21 Oct 2004
Content Owner: Paul Emma, SLAC
Page Editor: Paul Emma, SLAC