Kalman Filter Update

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  • In my test area I have expanded the material properties table in calib/Materials to include the average atomic number, atomic weight and density based on the Monte Carlo, throwing pions from various places within the bore of the magnet.

Density scan.gif

Z scan.gif

A scan.gif

  • The density, A and Z values are used to compute the average energy loss for each step in the trajectory using the Bethe-Bloch formula.
  • I generated 1.5 GeV/c pions in the z-range (50-80) cm from the x-y center of the target with theta=0-20 degrees.

Dpt vs theta.gif

Dpt mean vs theta.gif

Dp vs theta.gif

Dphi vs theta.gif