{HEAD ~ The photoelectron patterns} are modified and processed by {TAIL ~ a luminescent target} 7, evaluation means 8 and voltage discrimination means 9 to represent test point voltages 
{ HEAD ~ The photoelectron patterns } are modified and processed by { TAIL ~ a luminescent target } 7 , evaluation means 8 and voltage discrimination means 9 to represent test point voltages
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH