{HEAD ~ The apparatus} 5, wherein each photodiode comprises a P+ layer doped into {TAIL ~ the bulk semiconductor material} 
{ HEAD ~ The apparatus } 5 , wherein each photodiode comprises a P+ layer doped into { TAIL ~ the bulk semiconductor material }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL