{HEAD ~ An optional automatic light control sub system} provides greatly extended dynamic range with control inputs derived from {TAIL ~ an amplifying detector} included in each receiver to maximize occurrences of valid data points 
{ HEAD ~ An optional automatic light control sub system } provides greatly extended dynamic range with control inputs derived from { TAIL ~ an amplifying detector } included in each receiver to maximize occurrences of valid data points
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH