In absence of the Standard Model Higgs boson the interaction among the gauge
bosons becomes strong at high energies and influences the couplings between
them. Each trilinear and quartic gauge boson vertex is characterised by a set
of couplings which are expected to deviate from their Standard Model values
already at energies lower than the energy scale of the New Physics.The precise
measurement of gauge boson couplings can provide clues to the mechanism of the
electroweak symmetry breaking and their anomalous values can be a sign of a New
Physics effect beyond the Standard Model. The estimated precisions of the
trilinear gauge boson coupling (TGC) measurements at a photon collider are
about one to two orders of magnitude higher than at LEP and Tevatron providing
a measurement highly sensitive to the physics beyond the Standard Model. The
optimisation of the forward region of the photon collider detector brings the
amount of the low-energy background to the manageable level providing a clean
environment for the TGC measurements at a photon collider with estimated
precisions.Comment: PhD Theses, ~150page