The scattering structure includes {HEAD ~ a plurality} of {TAIL ~ scattering dots} located in the form of a plurality of concentric shapes about the center 
of
The scattering structure includes { HEAD ~ a plurality } of { TAIL ~ scattering dots } located in the form of a plurality of concentric shapes about the center
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