Positron Emon Paper
An Annihilation target for Energy monitor
Simulation
The simulation is located in the subdirectory
~/src/GEANT4/geant4.9.6.p02/Simulations/IAC_Positrons/AnnihTargAsym
References
Positron Asymmetries in table 3.5 on pg 50.
PG 74 has a simulation of the asymmetry