Builds a minimal PbWO4 geometry, forces EM physics tables via a
zero-event run, then sweeps photon energy 1 eV-10 MeV with
G4EmCalculator to dump per-process mass attenuation coefficients to CSV.
Mirrors run_pbwo4 but alternates thin absorber and active layers,
with four selectable configs (by name or 1-based index): pb_scint,
fe_scint, w_scint_ecal (homogeneous ECAL-like preshower + W/scint
sampling section), and pb_lar. Each is sized to reach ~20-25 X0 of
absorber despite the dilution from inactive gaps. Wired into the
top-level CMakeLists, superbuild, and Dockerfile alongside run_pbwo4.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Superbuild: install step creates build/run_pbwo4 symlink pointing at
the executable in build/minicalosim-build/.
Regular build: CMAKE_RUNTIME_OUTPUT_DIRECTORY ensures the executable
lands in build/ regardless of generator.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
lars
Jan Kieseler