This example describes AWA emittance exchange (EEX) beamline. The model is based on the paper by S.-Y. Kim et al.. For more details on the EEX beamline, please find the reference papers;
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M. Cornacchia, P. Emma, Phys. Rev. ST Accel. Beams 5, 084001, 2002 (https://journals.aps.org/prab/abstract/10.1103/PhysRevSTAB.5.084001)
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P. Piot, Y.-E Sun, J. G. Power, and M. Rihaoui, Phys. Rev. ST Accel. Beams 14, 022801, 2011 (https://journals.aps.org/prab/abstract/10.1103/PhysRevSTAB.14.022801)
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G. Ha et al., Phys. Rev. Lett. 118, 104801, 2017 (https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.104801) Email of the provider of the example.
Goal
Run the EEX linac beamline (OPAL_t), and check the beam parameters obtained from the simulation.
Preparation
If you do not have already access to OPAL, you can visit the download page. In case OPAL is on your cluster please check with the administrator how to use. PSI user please click here.
Needed Input Files
Since this is separated EEX simulation, you will need 6D phase space information as an input by running the drive linac simulation. Here the initial particle distribution is provided as “partcl.data.” In addition, for this simulation, we need fieldmaps of transverse deflecting cavity (TDC) and dipole magnet.
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Inputfile input.in
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Particle data partcl.data
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Tranvserse deflecting cavity (TDC) and dipole magnet field maps: TDC.dat and EEXDIP30cm.opal.
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Transverse mask: TriangularDrive_Witness.pbm
Run the AWA drive linac simulation
Here, space charge and CSR calculations are turned off
opal input.in | tee input.out