The method 21 wherein said {HEAD ~ diffusion} in said composite film is photolytically activated by {TAIL ~ focussed beam irradiation} 
is photolytically activated by
The method 21 wherein said { HEAD ~ diffusion } in said composite film is photolytically activated by { TAIL ~ focussed beam irradiation }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL