CLIC380_linac_knobs

This repository stores the emittance tuning knobs constructed for the Main Linac of CLIC 380 GeV. Each branch hosts some version of the knobs or some attempts to build them. The description of the branches are given below, they are listed chronologically as they were constructed. The full details on each knob set is given in the dedicated README. I try to accompany the knobs creation functions with some Notebooks, displaying the knobs' tests and their usage in the tuning.

So far there are the following Knobs sets here:

• 2024_01_24 - A set constructed with Sequential Forward Selection (SFS) with a custom regularization. Regularization consists of penalties on:
  • the elements' offsets
  • the beam orbit in the ML.
• 2024_03_07 - A set constructed with Sequential Forward Selection (SFS) with a custom regularization. Regularization consists of penalties on
  • the elements' offsets
  • the beam orbit in the ML.
  • the beam orbit at the ML exit.
• LASSO - A set constructed using exactly the same Tensorflow model (forward-backward!) as in 2024_03_07 but with LASSO as a feature selector.
• OMP - A set constructed using exactly the same Tensorflow model (forward-backward!) as in 2024_03_07 but with OMP as a feature selector.
• Variance Threshhold Filter - A set constructed using exactly the same Tensorflow model (forward-backward!) as in 2024_03_07 but with Variance Threshold Filter as a feature selector.
• Optimal (default version) - A set of optimal knobs that uses the best solutions evaluated with SFS and OMP.