Back Entering e+ - soft shower into Trackerfrom below

Albedo Gamma (rocking)?

e+ enters backside – spacecraft interaction – shower into LAT

Side / Corner entering e+

Scintillator

Back Side Entering Gamma Showers into Tracker

Side entering stopping proton

Proton from below stops in tracker

Corner Crossing e+

Side Row Scintillator

X YY Z

Incoming Proton – makes no sense ????

Found Track (Typ. both views XZ, YZ)

Top View XY

Found Track due to a 2nd Particle??

e+ Interaction in the space craft Produces 85 MeV hitting Calbackside. Shower Frags. createTracker track

11 Gev proton interaction in blanket – makes 250 MeV 0

204 MeV e+ annihilatesin blanket - one converts, theother plows into Cal.

Side entering albedo low energy – direction unreconstructable

Back side entering (367 MeV)Shower boil-out gives track

Alpha Particle – straight through

The Corner

There are a surprizing number of Alpha/Heavy Ions in the residuals