FIG 7 a shows imaging optics 28 with {HEAD ~ laser beams} 12 which are focused on {TAIL ~ the interaction point} 4 and projected by laser arrangements 5, shown schematically, whose imaging optics 28 are arranged in a circle without gaps 
FIG 7 a shows imaging optics 28 with { HEAD ~ laser beams } 12 which are focused on { TAIL ~ the interaction point } 4 and projected by laser arrangements 5 , shown schematically , whose imaging optics 28 are arranged in a circle without gaps
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH