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Nuclear and Particle Physics

The Compact Linear Collider’s Drive-Beam complex: How to power electrons up to 1.5 TeV

by Raul Costa

12167 (Ångström)




(PhD starting seminar)

As preparations are made for the next generation of accelerators for high energy physics, the Compact Linear Collider (CLIC) stands out as the most viable project in the TeV range to start commissioning within the next decade. To power its 100MV/m linear accelerators, CLIC uses a two-beam acceleration scheme in which a 244 ns, 100 A drive-beam pulse travels in parallel with the main linac through power extraction structures.

The focus of my work is the drive-beam complex. I will implement full start-to-end simulations of this machine in order to complete and optimize the lattice design. These will mainly be conducted in Placet2, a multi-bunch multi-particle tracking tool being developed to handle re-circulating machines.

My initial studies include characterization of emittance growth due to chromatic effects, coherent and incoherent synchrotron radiation, as well as of the longitudinal bunch profile. I will then insert imperfections into the drive-beam lattice compatible with a real world machine and characterize its performance with and without applying beam-based alignment techniques.

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