Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Randall D. Scheele"'
Publikováno v:
AIP Advances, Vol 5, Iss 12, Pp 127230-127230-16 (2015)
Solid NpO2 has been contacted by gaseous NF3 under isothermal conditions at 450°C, 475°C, and 500°C; and the resulting reactions have been monitored using thermogravimetric analysis. In each case, at least two sequential reactions are clearly obse
Externí odkaz:
https://doaj.org/article/d337ebbf61fc472894f734f6681ca588
Autor:
Randall D. Scheele, Chuck Z. Soderquist, Richard A.F. Clark, Samuel S. Morrison, Bruce K. McNamara, Matthew J. O'Hara
Publikováno v:
RSC advances. 10(6)
Production of the important 99mTc medical isotope parent, molybdenum-99 (99Mo), via the fissioning of high- and low-enriched uranium (HEU/LEU) targets followed by target dissolution in acid and solution-phase purification of 99Mo is time-consuming, g
Publikováno v:
Journal of Nuclear Materials. 552:153008
Based on studies indicating that addition of soluble oxides to UO2 increased resistance of UO2 to oxidation to U3O8, PNNL investigated the effects of doping UO2 with several soluble lanthanide oxides and zirconium oxide on stabilizing UO2. PNNL repor
Publikováno v:
Industrial & Engineering Chemistry Research. 56:5505-5515
The molten-salt-cooled nuclear reactor is one of the Generation IV reactor types. One of the challenges of implementing this reactor is purifying and maintaining the purity of the various molten fluoride salts that will be used as coolants. The metho
Autor:
Randall D. Scheele, Bruce K. McNamara, Christopher A. Barrett, David T. Hobbs, Jon M. Schwantes, Michael J. Minette
Publikováno v:
Thermochimica Acta. 650:76-87
In February 2014, an energetic gas-producing chemical reaction occurred in remediated plutonium processing waste emplaced in the Waste Isolation Pilot Plant causing the drum’s seal to fail and release radioactive material into and outside of the pl
Publikováno v:
Annals of Nuclear Energy. 78:40-48
The United States Department of Energy is building the Hanford Waste Treatment and Immobilization Plant (WTP) in south-central Washington State to immobilize a portion of the stored high-level radioactive wastes generated by decades of producing nucl
Autor:
Edgar C. Buck, Randall D. Scheele, Frances N. Smith, Bruce K. McNamara, Chuck Z. Soderquist, Edward Mausolf
Publikováno v:
Journal of Fluorine Chemistry. 162:1-8
Nitrogen trifluoride (NF3) was used to fluorinate the metallic residue from the dissolution of a high burnup, boiling water reactor fuel (∼70 MWd/kgU). The washed residue included the noble-metal phase (containing ruthenium, rhodium, palladium, tec
Publikováno v:
Journal of Fluorine Chemistry. 146:86-97
We present results of our continued investigation into the use of nitrogen trifluoride (NF 3 ) as the fluorinating agent in fluoride volatility-based reprocessing of used nuclear fuel, and as the fluorinating agent for oxides of cobalt and the lantha
Publikováno v:
MRS Proceedings. 1518:73-78
A calcium phosphate ceramic waste-form has been developed at AWE for the immobilisation of chloride containing wastes arising from the pyrochemical reprocessing of plutonium. In order to determine the long term durability of the waste-form, aging tri
Autor:
Jon H. Wahl, Sergey I. Sinkov, G.N. Brown, Samuel A. Bryan, Randall D. Scheele, Sandra K. Fiskum, Karl N. Pool, Deborah S. Coffey, Chuck Z. Soderquist, Lawrence R. Greenwood, Bruce K. McNamara, Richard A.F. Clark, Michael J. Minette, Calvin H. Delegard
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c18ee6777d7949f20b7b84e9e40b613
https://doi.org/10.2172/1274876
https://doi.org/10.2172/1274876