Considerations When Generating Rock Events

Flux (Dk2Nu)

  • expanding the flux window, building off previous entry
  • reuse file entries
  • setting minimum estimated max weight
  • what to do when max weight exceeded

GENIE proper

  • use "rock box" to limit volume considered based on nu ray energy

(asymrock not yet working)
(does "efromw" flag work ?)

  • example for standalone gevgen_fnal
  • run rays backward to fixed z position (upstream of any volume of consideration)


  • kill particles pointed away and outside some minimum distance from surface
  • tradeoff on killing early vs. possible neutron generation by particle