In a preferred embodiment, {HEAD ~ the conductor} is surrounded by a Teflon dielectric tube, which provides improved noise suppression during {TAIL ~ operation} 
In a preferred embodiment , { HEAD ~ the conductor } is surrounded by a Teflon dielectric tube , which provides improved noise suppression during { TAIL ~ operation }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL