  The High Intensity Proton Accelerator (HIPA) cyclotron at the Paul Scherrer
Institut (PSI) delivers 590 MeV CW proton beam with a maximum power of 1.42 MW.
After extraction, the beam is transferred in a 120 m long channel towards two
target stations (TgM and TgE) for surface muon production before depositing its
remaining power at the spallation target SINQ for neutron production. As part
of the High Intensity Muon Beamline (HIMB) feasibility study, the first of
these targets will be replaced with a thicker one thereby increasing the rate
of surface muon production. However, a key challenge for HIMB is to maintain
the proton beam losses to the lowest possible levels which requires improving
our understanding of the distributed losses along the MW-class beamline. To
this end, a new approach was developed where the aim is to relate the
experimental values of the temperature, beam profile measurements as well as
beam current measurements to the combined power deposition calculations and
primary beam losses using Monte Carlo simulation tools.
