The signal emanating from said photodiode array is sent through {HEAD ~ a multi channel analyzer} 23 which converts {TAIL ~ the individual signals} into a spectrum, as illustrated at 25 
converts
The signal emanating from said photodiode array is sent through { HEAD ~ a multi channel analyzer } 23 which converts { TAIL ~ the individual signals } into a spectrum , as illustrated at 25
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH