MERLIN for LHC Collimation

MERLIN version 5 delivers a new and efficient simulation tool for large hadron collider (LHC) collimation. Significant upgrades and optimisation have been performed to bring forth a new release of the C++ accelerator physics library. Version 5 offers modularity, including scattering routines with many physics models, which may be user supplemented trivially. The extensibility of MERLIN offers the ad hoc addition of; physics processes such as collimation, lattice elements such as the hollow electron lens (HEL), and tracking integrators. Accurate beam physics, including; synchrotron motion, symplectic tracking, and proton collimation are demonstrated. Using the LHC collimation system to produce loss maps at a beam energy of 7 TeV we validate the capabilities of MERLIN 5.