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