As shown in FIG 2, {HEAD ~ each detector head} has {TAIL ~ an inboard edge} 32A, 32B, an outboard edge 34A, 34B, a top edge 36A, 36B and a bottom edge 38A, 38B 
has
As shown in FIG 2 , { HEAD ~ each detector head } has { TAIL ~ an inboard edge } 32A , 32B , an outboard edge 34A , 34B , a top edge 36A , 36B and a bottom edge 38A , 38B
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH