UserAlg

UserAlg is a very powerful way of looking at the data. The main advantage is that you have complete access to the full geometry, and can use the propagator.  The main drawback is that you need to write C++ code and compile and run it against the full Glast software environment (GlastRelease/EngineeringModel).

This page is under construction and more examples will soon be added. The examples will only work with the new TkrRecon.

• Extrapolating a track from the tracker to the CAL and histogram the entrance point in the CAL:
  • Step-by-step instructions can be found here.
  • The C++ code can be found here.
  • JobOption file to run it on a digi file can be found here.
  • A script to run UserAlg is here.