a second focusing reflector which, in the reflectance mode, directs source provided {HEAD ~ converging radiation} through {TAIL ~ the objective} to focus at the sample, and receives post sample diverging radiation from the objective and directs it toward the detector 
through
a second focusing reflector which , in the reflectance mode , directs source provided { HEAD ~ converging radiation } through { TAIL ~ the objective } to focus at the sample , and receives post sample diverging radiation from the objective and directs it toward the detector
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL 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