Achromatic Telescopic Squeeze (ATS) Optics

Study of Dispersion Collimators in ATS optics:

Studies of the leakage from IR7 in the DS and downstream.
Halo cleaning simulations with extra collimators in the dispersion suppressor.

11T dipoles and DS collimator, Beam 1.
Usual dipoles and "thin" DS collimator, Beam 1.

LHC simulations of ATS optics:

Reference cases for ATS optics with collimation system including LS1 updates.

Reference case for Beam 1, Beam 2