Projectile/element file format

Projectile/element files have two purposes. At first, they define the projectiles and their properties available for the simulation. Second, they define the chemical elements for the target material (de)composition.
The usual file name extension is .proj. Example.

File version 20090415

For TRAX versions > 0804.
!filetype    trxproj
!fileversion <yyyymmdd>
!filedate    <dow> <mmm> <dd> <hh>:<mm>:<ss> <yyyy>
# Comment
!projectile      <name>
<Z_1> <A_1> <Mr_1> <abundancy_1> [<RMSc_1> [<RMSi_1>]]
<Z_2> <A_2> <Mr_2> <abundancy_2> [<RMSc_2> [<RMSi_2>]]
name can be e-, e+ or n for electrons, photons, and neutrons, respectively. Note, however, that photon and neutron interactions or not yet implemented in this version.
For ionic projectiles name is the generic element symbol.
The nuclides of a particular element are characterized by charge, Z, mass number, A, mass relative to the mass standard (12C), Mr, and natural abundancy (in percent).
RMSc and RMSi denote the nuclear charge and interaction radius, respectively. If RMSi is omitted, RMSc is taken. If both are omitted, an internal formula is applied:
   RMS = 1.36 A ^ (1/3)

For other projectiles (electrons, photons, neutrons) these entries are only formal, since they are filled internally.
TRAX versions > 0804 come with a complete database of supported projectiles in the PROJ subdirectory.


Last updated: M.Kraemer,
$Id: traxfmtproj.html,v 1.3 2015/01/05 17:20:05 kraemer Exp $