reacting spent nuclear fuel in a voloxidation vessel with an oxidizing gas comprising nitrogen dioxide and {HEAD ~ oxygen} for {TAIL ~ a period} sufficient to generate a solid oxidation product of said spent nuclear fuel, wherein said reacting step comprises: 
for
reacting spent nuclear fuel in a voloxidation vessel with an oxidizing gas comprising nitrogen dioxide and { HEAD ~ oxygen } for { TAIL ~ a period } sufficient to generate a solid oxidation product of said spent nuclear fuel , wherein said reacting step comprises :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH