{HEAD ~ The antenna apparatus} 1 wherein the protective covering is adapted at {TAIL ~ its outer surface} to reflect radiant heat energy and the remainder of said closed cryogenic container forms a vacuum insulated dewar 
{ HEAD ~ The antenna apparatus } 1 wherein the protective covering is adapted at { TAIL ~ its outer surface } to reflect radiant heat energy and the remainder of said closed cryogenic container forms a vacuum insulated dewar
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH