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