{HEAD ~ The magnetic duct} provides for the removal of undesirable particles generated by {TAIL ~ the cathodic arc source} 
{ HEAD ~ The magnetic duct } provides for the removal of undesirable particles generated by { TAIL ~ the cathodic arc source }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL