Tools to generate data files for CRPropa 3. An example to create the necessary data files for a custom photon field can be found in the CRPropa3 documentation.

CRPropa's default data files

• calc_all.py

Interactions between cosmic ray nuclei and background photons

• calc_pairproduction.py : electron pair production
• calc_photopionproduction.py : photo-pion production
• calc_photodisintegration.py : photodisintegration
• calc_elasticscattering.py : elastic scattering on the nuclear structure

Interactions between cosmic ray photons / electrons and background photons

• calc_electromagnetic.py
  • photon : pair and double-pair production
  • electrons : triplet pair production and inverse Compton scattering

Other processes

• calc_decay.py : nuclear decays
• calc_synchrotron.py : synchrotron radiation of charged particles
• calc_mass.py : table of nuclear masses

Helper modules

• photonField.py : collection of background photon fields (CMB, EBL, URB)
• interactionRate.py : functions to calculate interaction rates with isotropic photon fields
• gitHelp.py : function to include git-hash in tabulated data

Galactic magnetic lenses

• create_lens.py : create a magnetic lens from backtracking simualtions. See ./create_lens.py for details.