{HEAD ~ Data} from the look up table drives {TAIL ~ a piezoelectric positioning mechanism} that is physically coupled to a substrate carrying both the detector and the image source 
drives
{ HEAD ~ Data } from the look up table drives { TAIL ~ a piezoelectric positioning mechanism } that is physically coupled to a substrate carrying both the detector and the image source
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH