Hits in 1 plane of T1 (2000 evts. minimum bias)
Hits in 1 plane of T1 (2000 evts. minimum bias) and projection
(superimposed) of the origin of secondary particles which hit the plane.
Hits in 2 half planes of T2 (2000 evts. minimum bias)
Hits in 1 half plane of T2 (2000 evts. minimum bias)
Side view of the hits in T1 (2000 evts. minimum bias)