One known way to improve the efficiency of glow discharge sputtering is to use magnetic fields to confine electrons to the glow region in {HEAD ~ the vicinity} of {TAIL ~ the cathode/target surface} 
of
One known way to improve the efficiency of glow discharge sputtering is to use magnetic fields to confine electrons to the glow region in { HEAD ~ the vicinity } of { TAIL ~ the cathode / target surface }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL