Final implementation of FGT as intended for run 2012 (geom=y2012)

updated December 5, 2011

Fig 0. FGT in STAR for 2012. Assumed configuration: disk 1  w/ 4 quadrants, disks 2-6 w/ 2 quadrants at phi locations A & B.

Detailed geometry plots are in attachement B)

Fig 1a,b . Side view of FGT in STAR.

Fig 2a,b. End-view at disk 1 for sensitive plane and readout electronics plane

Fig 3a,b. End-view at disk 6 for sensitive plane and readout electronics plane

Fig 4.Radiation length introduced by FGT. For tracks entering FGT (in red) and exiting FGT (in black).

Fig 5. Radiation length introduced by FGT vs. phi for two Rcut off values.

Fig 6. Summary of material mixtures used in FGT modeling in Geant. Full table is in appendix A)