Ions, {HEAD ~ neutral particles}, and macro particles generated by {TAIL ~ the cathodic arc flow} into the magnetic duct where substantially all the neutral and macro particles are removed 
Ions , { HEAD ~ neutral particles } , and macro particles generated by { TAIL ~ the cathodic arc flow } into the magnetic duct where substantially all the neutral and macro particles are removed
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH