Radiation Effects and Radioactive Waste Management
Research Group


 

Publications

Journal Articles (refereed)

*indicates student author

1.

Rodney C. Ewing and A. J. Ehlmann (1973) Yttrialite and uraninite, additional minerals from the Rode Ranch Pegmatite, Central Mineral Region Texas. The American Mineralogist, 58, 545-547.

2.

Rodney C. Ewing (1973) Vickers hardness and reflectance determinations for metamict AB2O6-type rare earth Nb-Ti-Ta oxides. The American Mineralogist, 58, 942-944.

3.

Rodney C. Ewing (1974) Spherulitic recrystallization of metamict polycrase. Science (cover), 184, 561-562.

4.

Rodney C. Ewing and J. L. Krumhansl (1974) Natural gamma-ray spectra of euxenite, polycrase and aeschynite. The Canadian Mineralogist, 13, 357-359.

5.

Rodney C. Ewing and A. J. Ehlmann (1975) Annealing study of metamict, orthorhombic, rare earth, AB2O6-type, Nb-Ta-Ti oxides. The Canadian Mineralogist, 13, 1-7.

6.

Rodney C. Ewing (1975) Alteration of metamict, rare-earth, AB2O6-type, Nb-Ta-Ti oxides. Geochimica et Cosmochimica Acta, 39, 521-530.

7.

Rodney C. Ewing (1975) The crystal chemistry of complex niobium and tantalum oxides IV. The metamict state: Discussion. The American Mineralogist, 60, 728-730.

8.

Rodney C. Ewing (1976) A numerical approach toward the classification of complex orthorhombic, rare-earth AB2O6-type Nb-Ta-Ti oxides. The Canadian Mineralogist, 14, 111-119.

9.

Rodney C. Ewing (1976) Metamict mineral alteration: An implication for radioactive waste disposal. Science, 192, 1336-1337.

10.

Rodney C. Ewing (1976) Metamict columbite reexamined. Mineralogical Magazine, 40, 898-899.

11.

R. H. Jahns and Rodney C. Ewing (1976) The Harding pegmatite, Taos County, New Mexico. Vermejo Park, Guidebook for the 27th Field Conference of the New Mexico Geological Society, 263-276.

12.

R. H. Jahns and Rodney C. Ewing (1977) The Harding mine, Taos County, New Mexico. Mineralogical Record, 8, 115-126.

13.

Rodney C. Ewing, K. B. Snetsinger and T. E. Bunch (1977) Euxenite from Ampangabe, Madagascar. The Canadian Mineralogist, 15, 92-96.

14.

Rodney C. Ewing and S. Thompson III (1977) Thermal metamorphism of organic matter in drill cuttings from KCM No. l Forest Federal Well, Hidalgo County, New Mexico. In Geology, petroleum source rocks, and thermal metamorphism in KCM No. 1 Forest Federal Well, Hidalgo County, New Mexico. New Mexico Bureau of Mines and Mineral Resources Circular 152, 49-52.

15.

M. Taylor and Rodney C. Ewing (1978) The crystal structures of the ThSiO4 polymorphs: huttonite and thorite. Acta Crystallographica, B34, 1074-1079.

16.

Rodney C. Ewing (1978) The elegant symmetry of crystals. Natural History, February, 63-71.

17.

Wilson W. Crook, Rodney C. Ewing and A. J. Ehlmann (1978) Rowlandite from the Baringer Hill rare-earth pegmatite district, Llano and Burnet counties, Texas. The American Mineralogist, 63, 754-756.

18.

W. L. Mansker*, K. Keil and Rodney C. Ewing (1979) Contributions to the mineral chemistry of Hawaiian rocks VII: Barian-titanian biotites in nephelinites from Oahu, Hawaii. The American Mineralogist, 64, 156-159.

19.

D. G. Brookins, B. C. Chakoumakos*, C. W. Cook, Rodney C. Ewing, G. P. Landis and M. E. Register* (1979) The Harding Pegmatite: Summary of recent research. In New Mexico Geological Society Guidebook, 30th Field Conference, Santa Fe Country, R. V. Ingersoll and L. A. Woodward, Eds., 127-134.

20.

R. F. Haaker and Rodney C. Ewing (1979) Differential thermal analysis of some irradiated materials: Discussion. The American Mineralogist, 64, 1131-1132.

21.

F. Dowsett and Rodney C. Ewing (1980) High temperature alkali feldspars: A compositional gap. The Canadian Mineralogist, 18, 71-72.

22.

Rodney C. Ewing and R. F. Haaker (1980) The metamict state: Implications for radiation damage in crystalline waste forms. Nuclear and Chemical Waste Management, 1, 51-57.

23.

R. F. Haaker and Rodney C. Ewing (1981) A solution gelation method for preparing polycrystalline zircon. Journal of the American Ceramic Society, 63 (11), C-149.

24.

T. J. Headley, Rodney C. Ewing and R. F. Haaker (1981) Amorphous structure of metamict minerals observed by TEM. Nature, 293, 449-450.

25.

Rodney C. Ewing and T. J. Headley (1983) Alpha-recoil damage in natural zirconolite (CaZrTi2O7). Journal of Nuclear Materials, 119, 102-109.

26.

G. Malow, W. Lutze and Rodney C. Ewing (1984) Alteration effects and leach rates of basaltic glasses: Implications for the long-term stability of nuclear waste form borosilicate glasses. Journal of Non-Crystalline Solids, 67, 305-321.

27.

R. B. Greegor, F. W. Lytle, Rodney C. Ewing and R. F. Haaker (1984) Ti-site geometry in metamict, annealed and synthetic complex Ti-Nb-Ta oxides by x-ray absorption spectroscopy. Nuclear Instruments and Methods in Physics Research, B1, 587-594.

28.

W. Lutze, G. Malow, Rodney C. Ewing, M. J. Jercinovic* and K. Keil (1985) Alteration of basalt glasses: Implications for modelling the long-term stability of nuclear waste glasses. Nature, 314,252-255.

29.

G. R. Lumpkin*, B. C. Chakoumakos, Rodney C. Ewing (1986) Mineralogy and radiation effects of microlite from the Harding Pegmatite, Taos County, New Mexico. American Mineralogist, 71, 569-588.

30.

G. R. Lumpkin*, E. M. Foltyn and Rodney C. Ewing (1986) Thermal recrystallization of alpha-recoil damaged minerals of the pyrochlore structure type. Journal of Nuclear Materials, 129, 113-120.

31.

G. R. Lumpkin*, R. C. Ewing, B. C. Chakoumakos, R. B. Greegor, F. W. Lytle, E. M. Foltyn, F. W. Clinard, Jr., L. A. Boatner and M. M. Abraham (1986) Alpha-recoil damage in zirconolite (CaZrTi2O7). Journal of Materials Research, 1, 564-576.

32.

T. J. Headley and R. C. Ewing (1986) TEM study of the microstructure of metamict minerals. Microanalysis-1986 (San Francisco Press, San Francisco) 141-144.

33.

G. R. Lumpkin* and R. C. Ewing (1986) High resolution transmission electron microscopy of microlite from the Harding pegmatite, Taos County, New Mexico. Microanalysis-1986 (San Francisco Press, San Francisco) 145-147.

34.

Rachel Cowan* and Rodney C. Ewing (1986) Alteration products of basaltic glass, Hanauma Bay, Oahu, Hawaii. Microanalysis-1986 (San Francisco Press, San Francisco) 131-134.

35.

T. J. Headley, R. C. Ewing and R. F. Haaker (1986) TEM study of the metamict state. In Physics of Minerals and Ore Microscopy, R. I. Kostov and B. K. Kamenov, Eds., (Bulgarian Academy of Science, Sofia) 281-289.

36.

Rodney C. Ewing, Bryan C. Chakoumakos, Gregory R. Lumpkin* and Takashi Murakami (1987) The metamict state. Materials Research Society Bulletin, 12 (4), 58-66.

37.

Bryan C. Chakoumakos, Takashi Murakami, Gregory R. Lumpkin*and Rodney C. Ewing (1987) Alpha-decay induced fracturing in zircon: The transition from the crystalline to the metamict state. Science (cover), 236, 1556-1559.

38.

G. R. Lumpkin*, Y. Eyal and R. C. Ewing (1988) Preferential leaching and natural annealing of alpha-recoil tracks in metamict betafite and samarskite. Journal of Materials Research, 3 (2), 357-368.

39.

R. C. Ewing, B. C. Chakoumakos, G. R. Lumpkin*, T. Murakami, R. B. Greegor and F. W. Lytle (1988) Metamict minerals: Natural analogues for radiation damage effects in ceramic nuclear waste forms. Nuclear Instruments and Methods in Physics Research, B32, nos. 1-4, and the Proceedings of the Fourth International Conference on Radiation Effects in Insulators, Lyon, France, July 6-10, 1987. Also printed in Nuclear Waste Materials: A Workshop On Radiation Damage Effects in Nuclear Waste Materials, edited by Hj. Matzke, 487-497.

40.

G. R. Lumpkin* and R. C. Ewing (1988) Alpha-decay damage in minerals of the pyrochlore group. Physics and Chemistry of Minerals, 16, 2-20.

41.

R. B. Greegor, F. W. Lytle, B. C. Chakoumakos, R. C. Ewing, R. J. Livak, F. W. Clinard, E.D. Crozier, N. Alberding, A. J. Seary, G. W. Arnold, M. J. Weber, J. Wong and W. J. Weber (1989) Application of various XAFS techniques to the investigation of structurally damaged materials. Physica B, 158, 498-500.

42.

L. Werme, I.K. Björner, G. Bart, H. U. Zwicky, B. Grambow, W. Lutze, R.C. Ewing and C. Magrabi (1990) Chemical corrosion of highly radioactive borosilicate nuclear waste glass under simulated repository conditions. Journal of Materials Research, 5 (5), 1130-1146.

43.

R.B. Greegor, F.W. Lytle, G.W. Arnold and R.C. Ewing (1990) Pb-implanted SrTiO3 analyzed using Rutherford backscattering and surface sensitive EXAFS/XANES spectroscopy. Journal of Non-Crystalline Solids, 122, 121-132.

44.

R.J. Finch* and R. C. Ewing (1991) Alteration of natural uraninite under oxidizing conditions from Shinkolobwe, Katanga, Zaire: A natural analogue for the corrosion of spent fuel. Radiochimica Acta, 52/53, 395-401.

45.

L.M. Wang, R.K. Eby*, J. Janeczek and R.C. Ewing (1991) In situ TEM study of ion-beam-induced amorphization of complex silicate structures. Nuclear Instruments and Methods for Physics Research, B59/60, 395-400.

46.

R. C. Ewing and W. Lutze (1991) High-level nuclear waste immobilization with ceramics. Ceramics International, 17 (5), 287-293.

47.

F.C. Hawthorne, L.A. Groat, Mati Raudsepp, N.A. Ball, M. Kimata, F.D. Spike, R. Gaba, N.M. Halden, G.R. Lumpkin*, R.C. Ewing, R.B. Greegor, F.W. Lytle, T.S.Ercit, G.R. Rossman, F.J. Wicks, R.A. Ramik, B.L. Sherriff, M.E. Fleet, and C. McCammon (1991) Alpha-decay damage in titanite. American Mineralogist, 76, 370-396.

48.

G.R. Lumpkin*, R.K. Eby* and R.C. Ewing (1991) Alpha-recoil damage in titanite (CaTiSiO5): Direct observation and annealing study using high resolution transmission electron microscopy. Journal of Materials Research, 6 (3), 560-564.

49.

W.J. Weber, R.K. Eby* and R.C.Ewing (1991) Accumulation of structural defects in ion-irradiated Ca2Nd8(SiO4)6O2. Journal of Materials Research, 6 (6), 1334-1345.

50.

T. Murakami, B.C. Chakoumakos, R.C. Ewing, G.R. Lumpkin* and W.J. Weber (1991) Alpha-decay event damage in zircon. American Mineralogist, 76, 1510-1532.

51.

F.W. Clinard, Jr., E.M. Foltyn and R.C. Ewing (1991) Stored energy in natural zirconolite and its synthetic counterpart after alpha recoil self-irradiation damage. Journal of Nuclear Materials, 185, 202-207.

52.

J. Janeczek and R.C. Ewing (1991) X-Ray powder diffraction study of annealed uraninite. Journal of Nuclear Materials, 185, 66-77.

53.

B.C. Chakoumakos, W.C. Oliver, G.R. Lumpkin* and R.C. Ewing (1991) Hardness and elastic modulus of zircon as a function of heavy-particle irradiation dose: I. In situ a-decay event damage. Radiation Effects and Defects in Solids, 118, 393-403.

54.

G.R. Lumpkin* and R.C. Ewing (1992) Geochemical alteration of pyrochlore group minerals: Microlite subgroup. American Mineralogist, 77, 179-188.

55.

L.M. Wang and R.C. Ewing (1992) Detailed in-situ study of ion beam-induced amorphization of zircon. Nuclear Instruments and Methods for Physics Research, B: Beam Interactions with Materials and Atoms, B65, 324-329.

56.

R.C. Ewing and L.M. Wang (1992) Amorphization of zirconolite: Alpha-decay event damage versus krypton ion irradiation. Nuclear Instruments and Methods for Physics Research, B: Beam Interactions with Materials and Atoms, B65, 319-323.

57.

R.C. Ewing and Alexandra Navrotsky (1992) Earth materials. Materials Research Society Bulletin, vol. XVII, no. 5, 19-22.

58.

L.M. Wang and R.C. Ewing (1992) Ion beam induced amorphization of complex ceramic materials -- minerals. Materials Research Society Bulletin, vol. XVII, no. 5, 38-44.

59.

R.J. Finch*, M.L.Miller* and R.C. Ewing (1992) Weathering of natural uranyl oxide hydrates: Schoepite polytypes and dehydration effects. Radiochimica Acta, 58/59, 433-443.

60.

R.K. Eby* and R.C. Ewing (1992) The amorphization of complex silicates by ion-beam irradiation. Journal of Materials Research, 7, 3080 - 3102.

61.

J. Janeczek and R.C. Ewing (1992) Dissolution and alteration of uraninite under reducing conditions. Journal of Nuclear Materials, 190, 157-173.

62.

R.J. Finch* and R.C. Ewing (1992) Corrosion of uraninite under oxidizing conditions. Journal of Nuclear Materials, 190, 133-156.

63.

H. Isobe and R.C. Ewing (1992) Alteration of uranium minerals in the Koongarra deposit, Australia - Unweathered zone. Journal of Nuclear Materials, 190, 174-187.

64.

J. Janeczek and R.C. Ewing (1992) The structural formula of uraninite. Journal of Nuclear Materials, 190, 128-132.

65.

Julie K. Warner* and R.C. Ewing (1993) Crystal chemistry of samarskite. American Mineralogist, 78, 419-424.

66.

R.K. Eby*, J. Janeczek, R.C. Ewing, T.S. Ercit, L.A. Groat, B.C. Chakoumakos, F.C. Hawthrone and G.R. Rossman (1993) Metamict and chemically altered vesuvianite. Canadian Mineralogist, 31, part 2, 357-369.

67.

M.L. Miller* and R.C. Ewing (1993) Image simulation of partially amorphous materials. Ultramicroscopy. 48, 203-237.

68.

L.M. Wang, R.C. Birtcher and R.C. Ewing (1993) Ion irradiation-induced nano-scale polycrystallization of intermetallic and ceramic materials. Nuclear Instruments and Methods for Physics Research, B: Beam Interactions with Materials and Atoms. B80/81, 1109-1113.

69.

F. Farges, R.C. Ewing and G.E. Brown (1993) The structure of aperiodic, metamict, (Ca,Th)2Zr2Ti4O14 (zirconolite): An EXAFS study of the Zr, Th, and U sites. Journal of Materials Research. 8 (8), 1983-1995.

70.

L.M. Wang, M.L. Miller*, and R.C. Ewing (1993) HRTEM study of displacement cascades in krypton ion irradiated silicate -- olivine. Ultramicroscopy, 51, 339-347.

71.

J. Janeczek, R.C. Ewing and L.E. Thomas (1993) Oxidation of uraninite: Does tetragonal U3O7 occur in nature?. Journal of Nuclear Materials, 207, 176-191.

72.

W.J. Weber, R.C. Ewing, and Lu-Min Wang (1994) The radiation-induced crystalline-to-amorphous transition in zircon. Journal of Materials Research, 9 (3), 688-698.

73.

R.C. Ewing (1994) The metamict state: 1993 - The Centennial. Nuclear Instruments and Methods in Physics Research, B91, 22-29.

74.

L.W. Hobbs, F.W. Clinard, Jr., S.J. Zinkle, R.C. Ewing (1994) Radiation effects in ceramics. Journal of Nuclear Materials, 216, 291-321 (cover).

75.

S. Ellsworth, A. Navrotsky, and R.C. Ewing (1994) Energetics of radiation damage in natural zircon (ZrSiO4). Physics and Chemistry of Minerals, 21, 140-149.

76.

R.C. Ewing and W. Lutze (1994) Materials science of radioactive waste forms. Materials Research Society Bulletin. vol. XIX (12), 16-18.

77.

P. Eberly*, J. Janeczek and R.C. Ewing (1994) Petrographic analysis of samples from the uranium deposit at Oklo, Republic of Gabon. Radiochimica Acta, 66/67, 455-461.

1995

78.

N. Bordes, K.E. Sickafus, E.A. Cooper and R.C. Ewing (1995) Structural damage in spinel after ion irradiation. Journal of Nuclear Materials, 225, 318-323.

79.

R.C. Ewing, W.J. Weber and F.W. Clinard, Jr. (1995) Radiation effects in nuclear waste forms. Progress in Nuclear Energy: An International Review Journal, 29 (2), 63-127.

80.

R.C. Ewing, W. Lutze and W.J. Weber (1995) Zircon: A host-phase for the disposal of weapons plutonium. Journal of Materials Research, 10 (2), 243-246.

81.

T.C. Onstott, M.L. Miller, R.C. Ewing, G.W. Arnold and D.S. Walsh (1995) Recoil refinements: Implications for the 40Ar/39Ar dating technique. Geochimica et Cosmochimica Acta, 59 (9), 1821-1834.

82.

J. Janeczek and R.C. Ewing (1995) Mechanisms of lead release from uraninite in the natural fission reactors in Gabon. Geochimica et Cosmochimica Acta, 59 (10), 1917-1931.

83.

G.R. Lumpkin* and R.C. Ewing (1995) Geochemical alteration of pyrochlore group minerals: Pyrochlore subgroup. American Mineralogist, 80, 732-743.

84.

N. Bordes, L.M. Wang, R.C. Ewing and K.E. Sickafus (1995) Ion-beam induced disordering and onset of amorphization in spinel by defect accumulation. Journal of Materials Research, 10 (4), 981-985.

1996

85.

A.N. Sreeram*, L.W. Hobbs, N. Bordes and R.C. Ewing (1996) Irradiation-induced amorphization of AlPO4. Nuclear Instruments and Methods in Physics Research (B), 116, 126-130.

86.

A. Meldrum*, L.M. Wang and R.C. Ewing (1996) Ion beam induced amorphization of monazite. Nuclear Instruments and Methods in Physics Research (B), 116, 220-224.

87.

G.R. Lumpkin* and R.C. Ewing (1996) Geochemical alteration of pyrochlore group minerals: Betafite subgroup. American Mineralogist, 81, 1237-1248.

88.

W.L. Gong, L.M. Wang, R.C. Ewing and Y. Fei (1996) Surface and grain boundary amorphization: Thermodynamic melting of coesite below the glass transition temperature. Physical Review B, 53 (5), 2155-2158.

89.

J. Janeczek and R.C. Ewing (1996) Phosphatian coffinite with rare earth elements and françoisite-(Ce,Nd) from sandstone beneath a natural fission reactor at Bangombé, Gabon. Mineralogical Magazine, 60, 665-669.

90.

J. Janeczek and R.C. Ewing (1996) Florencite-(La) with fissiogenic REE from a natural fission reactor at Bangombé, Gabon. American Mineralogist, 81, 1263-1269.

91.

P.P. Newcomer*, J.C. Barbour, L.M. Wang, E.L. Venturini, J.F. Kwak, R.C. Ewing, M.L. Miller and B. Morosin (1996) Temperature dependent microstructural modification in ion irradiated Tl-type high temperature superconductors. Physica C, Superconductivity, 267, 243-253.

92.

R.C. Ewing and L.J. Crossey (1996) In Darwin's Footsteps. Journal of Geoscience Education, 44(5), 518-522.

93.

P.C. Burns, M.L. Miller and R.C. Ewing (1996) U6+minerals and inorganic phases: A comparison and hierarchy of crystal structures. Canadian Mineralogist, 34, 845-880.

94.

M.L. Miller, R.J. Finch, P.C. Burns and R.C. Ewing (1996) Description and classification of uranium oxide hydrate sheet topologies. Journal of Materials Research, 11(12), 3048-3056.

95.

R.J. Finch*, M.A. Cooper, F.C. Hawthorne and R.C. Ewing (1996) The crystal structure of schoepite, [(UO2)8 O2 (OH)12](H2O)12. Canadian Mineralogist, 34, 1071-1088.

96.

J. Janeczek, R.C. Ewing, V.M. Oversby and L.O. Werme (1996) Uraninite and UO2 in spent nuclear fuel: A comparison. Journal of Nuclear Materials, 238, 121-130.

97.

W.L. Gong, L.M. Wang, R.C. Ewing and J. Zhang (1996) Electron-irradiation and ion-beam-induced amorphization of coesite. The Physical Review B, 54(6), 3800-3808.

98.

P.O.Eberly*, R.C. Ewing, J. Janeczek and Armando Furlano* (1996) Clays at the natural nuclear reactor at Bangombé, Gabon: Migration of actinides. Radiochimica Acta, 74, 271-275.

1997

99.

R.J. Finch, F.C. Hawthorne, M.L. Miller and R.C. Ewing (1997) Distinguishing among schoepite, [(UO2) 8O2 (OH)12](H2O)12, and related minerals by X-ray powder difraction. Powder Diffraction, 12(4), 230-238.

100.

R.J. Finch* and R.C. Ewing (1997) Clarkeite: new chemical and structural data. American Mineralogist, 82, 607-619.

101.

P.C. Burns, R.C. Ewing, and M.L. Miller (1997) Incorporation mechanisms of actinide elements into the structures of U6+ phases formed during the oxidation of spent nuclear fuel. Journal of Nuclear Materials 245, 1-9.

102.

S.X. Wang*, L.M. Wang, R.C. Ewing and R.H. Doremus (1997) Ion irradiation-induced amorphization in the Al2O3-SiO2 system: A comparison with glass formation. Journal of Applied Physics, 81(2), 587-593.

103.

L.F. Chen, L.M. Wang, Y.X. Guo and R.C. Ewing (1997) Ion irradiation-induced phase transformation in Al-Cu-Co-Ge decagonal quasicrystal. Nuclear Instruments and Methods in Physics Research, B127/128, 127-131.

104.

A. Meldum*, L.A. Boatner, L.M. Wang and R.C. Ewing (1997) Ion-beam-induced amorphization of LaPO4 and ScPO4. Nuclear Instruments and Methods in Physics Research, B127/128, 160-165.

105.

S.X. Wang*, LM. Wang and R.C. Ewing (1997) Amorphization of Al2SiO5 polymorphs under ion beam irradiation. Nuclear Instruments and Methods in Physics Research, B127/128, 186-190.

106.

Y.X. Guo*, L.M. Wang, L.F. Chen and R.C. Ewing (1997) Ion beam-irradiation induced structure transformation in a-AlMnSi. Nuclear Instruments and Methods in Physics Research, B127/128, 752-755.

107.

A. Meldrum*, L.A. Boatner and R.C. Ewing (1997) Electron irradiation-induced nucleartion and growth in amorphous LaPO4, ScPO4 and zircon. Journal of Materials Research, 12(7), 1816-1827.

108.

W.L. Gong, L.M. Wang, R.C. Ewing and H.S. Xie (1997) Interface-mediated amorphization of coesite by 200 keV electron irradiation. Journal of Applied Physics, 81(6), 2570-2574.

109.

W.J. Weber, R.C. Ewing, C.A. Angell, G.W. Arnold, A.N. Cormack, J.M. Delaye, D.L. Griscom, L.W. Hobbs, A. Navrotsky, D.L. Price, A.M. Stoneham and M.C. Weinberg (1997) Radiation effects in glasses used for immobilization of high-level waste and plutonium disposition. Journal of Materials Research, 12(8), 1946-1978.

110.

A. Meldrum, L.M. Wang and R.C. Ewing (1997) Electron-irradiation-induced phase segregation in crystalline and amorphous apatite: A TEM study. American Mineralogist, 82, 858-869.

111.

Ignasi Casas, Jordi Bruno, Esther Cera, R.J. Finch and R.C. Ewing (1997) Characterization and dissolution behavior of a becquerelite from Shinkolobwe, Zaire. Geochimica et Cosmochimica Acta, 61(18), 3879-3884.

112.

Peter C. Burns, Robert J. Fnch, Frank C. Hawthorne, Mark L. Miller and Rodney C. Ewing (1997) The crystal structure of ianthinite, [U24+(UO2)4O6(OH)4(H20)4](H20)5: a possible phase for Pu4+ incorporation during the oxidation of spent nuclear fuel. Journal of Nuclear Materials, 249, 199-206.

113.

P.C. Burns, F.C. Hawthorne, E. Libowitsky, N. Bordes and R.C. Ewing (1997) Donathite discredited: a mixture of two spinels. Neues Jahrbuch für Mineralogie Monatshefte., 4, 163-174.

114.

Mostafa Fayek, Janusz Jasneczek and R.C. Ewing (1997) Mineral chemistry and oxygen isotopic analyses of uraninite, pitchblende and uranium alteration minerals from the Cigar Lake deposit, Saskatchewan, Canada. Applied Geochemistry, 12, 549-565.

115.

A. Meldrum*, L.A. Boatner and R.C. Ewing (1997) Displacive radiation effects in the monazite- and zircon-structure orthophosphates. Physical Review B, 56, 13805-13814.

116.

W.J. Weber, R.C. Ewing and A. Meldrum (1997) The kinetics of alpha-decay-induced amorphization in zircon and apatite containing weapons-grade plutonium or other actinides. Journal of Nuclear Materials, 250, 147-155.

117.

P.C. Burns, R.C. Ewing and F.C. Hawthorne (1997) Crystal Chemistry of U(6+) phases. Canadian Mineralogist, 35(6), 1551-1570.

118 R.C. Ewing and W. Lutze (1997)  Disposing of Plutonium. Science, vol. 275, 735.
1998

119.

W.J. Weber, R.C. Ewing, C.R.A. Catlow, T. Diaz de la Rubia, L.W. Hobbs, C. Kinoshita, Hj. Matzke, A.T. Motta, M. Nastasi, E.H.K. Salje, E.R. Vance and S.J. Zinkle (1998) Radiation effects in crystalline ceramics for the immobilization of high-level nuclear waste and plutonium. Journal of Materials Research 13 (6), 1434-1484.

120.

A. Meldrum, S.J. Zinkle, L.A. Boatner and R.C. Ewing (1998) Displacement-cascade amorphization and phase decomposition in zircon, hafnon, and thorite. Nature, 395, 56-58.

121.

W.L. Gong, L.M. Wang, R.C. Ewing, E. Vernaz, J.K. Bates and W.L. Ebert (1998) Analytical electron microscopy study of surface layers formed on the French SON68 nuclear waste glass during vapor hydration at 200°C. Journal of Nuclear Materials (cover photograph), 254 (2,3), 249-265.

122

A. Meldrum*, L.A.Boatner, W.J. Weber and R.C. Ewing (1998) Radiation damage in zircon and monazite. Geochimica et Cosmochimica Acta.

123

S.B. Clark, R.C. Ewing and J.C. Schaumloffel (1998) A method to predict free energies of formation of mineral phases in the U(VI)-SiO2-H2O system. Journal of Alloys and Compounds, 271, 189-193.

124.

L.M. Wang, S.X. Wang, W.L. Gong, R.C. Ewing and W.J. Weber (1998) Amorphization of ceramic materials by ion beam irradiation. Materials Science & Engineering A253(1-2), 106-113.

125.

L.M. Wang, S.X. Wang, W.L. Gong and R.C. Ewing (1998) Temperature dependence of Kr ion-induced amorphization of mica minerals. Nuclear Instruments and Methods in Physics Research B141, 501-508.

126.

S.X. Wang, L.M. Wang and R.C. Ewing (1998) Ion irradiation-induced amorphization of CaAl2O4. Nuclear Instruments and Methods in Physics Research B141, 509-513.

127.

A. Meldrum, L.A. Boatner, and R.C. Ewing (1998) Effects of ionizing and displacive irradiation on several perovskite-structure oxides. Nuclear Instruments and Methods in Physics Research B141, 347-352.

128.

R.J. Finch, F.C. Hawthorne and R.C. Ewing (1998) Structural relations among schoepite, metaschoepite and dehydrated schoepite. Canadian Mineralogist 36, 831-845.

129.

W.L. Gong, L.M. Wang and R.C. Ewing (1998) Cross-section transmission electron microscopy of irradiation-induced amorphization in a-quartz. Journal of Applied Physics 84(8), 4204-4208.

130.

S.X. Wang, L.M. Wang, R.C. Ewing and R.H. Doremus (1998) Ion beam-induced amorphization in the MgO-Al2O3-SiO2 system: I - Experimental and theoretical basis. Journal of Non-Crystalline Solids 238(3), 198-213.

131.

S.X. Wang, L.M. Wang, R.C. Ewing and R.H. Doremus (1998) Ion beam-induced amorphization in MgO-Al2O3-SiO2 system: II -- Empirical model. Journal of Non-Crystalline Solids 238(3), 214-224.

132.

Teertstra, D.K., Cerny, P., Hawthorne, F.C., Pier, J., Wang, L.M. and Ewing, R.C. (1998) Rubicline, a new feldspar from San Piero in Canpo, Elba, Italy. American Mineralogist, 83, 1335-1339.

1999

133.

A. Meldrum, S.J. Zinkle, L.A. Boatner and R.C. Ewing (1999) Heavy-ion irradiation effects in the ABO4 orthosilicates: Decomposition, amorphization, and recrystallization. Physical Review B 59(6), 3981-3992.

134.

Fanrong Chen, R.C. Ewing and S.B. Clark (1999) The Gibbs free energies and enthalpies of formation of uranium (VI) phases: An empirical method of prediction. American Mineralogist, 84(4), 650-654.

135.

I. Casas, J. De Pablo, J. Giménez, M.E. Torrero, J. Bruno, E. Cera, R.J. Finch and R.C. Ewing (1998) The role of pe, pH, and carbonate on the solubility of UO2 and uraninite under nominally reducing conditions. Geochimica et Cosmochimica Acta 62(13), 2223-2231.

136.

S.X. Wang, L.M. Wang, R.C. Ewing, G.S. Was and G.R. Lumpkin (1999) Ion irradiation-induced phase transformation of pyrochlore and zirconolite. Nuclear Instruments and Methods in Physics Research B148, 704-709.

137.

A. Meldrum, R.Z. Zuhr, E. Sonder, J.D. Budai, C.W. White, L.A. Boatner, R.C. Ewing and D.O. Henderson, Formation of oriented particles in an amorphous host: ZnS nanocrystals in silicon. Applied Physics Letters 74(5) (1999) 697-699.

138.

A. Meldrum, L. A. Boatner, S. J. Zinkle, S. X. Wang, L. M. Wang and R. C. Ewing (1999) Effects of dose rate and temperature on the crystalline-to-metamict transformation in the ABO4 orthosilicates. The Canadian Mineralogist 37, 207-221.

139.

W.L. Gong, W. Lutze, A. Abdelouas and R.C. Ewing (1999) Vitrification of radioactive waste by reaction sintering under pressure. Journal of Nuclear Materials 265, 12-21.

140.

R.C. Ewing (1999) Nuclear waste forms for actinides. Proceedings of the National Academy of Sciences, 96(7) 3432-3439.

141.

E.K.H. Salje, J. Chrosch and R.C. Ewing (1999) Is “Metamictization” of zircon a phase transition?  American Mineralogist 84, 1107-1116.

142.

Fanrong, Chen, P.C. Burns and R.C. Ewing (1999) 79Se:  Geochemical and crystallo-chemical retardation mechanisms.  Journal of Nuclear Materials 275, 81-94.

143.

R. C. Ewing (1999) Less geology in the geological disposal of nuclear waste. Science 286, 415-417.

144.

R. C. Ewing, M. S. Tierney, L. F. Konikow and R. P. Rechard (1999) Performance assessments of nuclear waste repositories: a dialogue on their value and limitations. Risk Analysis 19, 933-957.

145.

R.J. Finch, M.A. Cooper, F.C. Hawthorne and R.C. Ewing (1999) Refinement of the crystal structure of rutherfordine.  Canadian Mineralogist, vol. 37, 929-938.

146

L.M. Wang, W.L Gong, S.X. Wang, and R.C. Ewing (1999) Comparison of ion-beam irradiation effects in X2YO4 Compounds.  Journal of the American Ceramic Society 82(12), 3321-3329.

147.

S.X. Wang, B.D. Begg, L.M. Wang, R.C. Ewing, W.J. Weber and K.V. Govidan Kutty (1999) Radiation stability of gadolinium zirconate:  A waste form for plutonium disposition.  Journal of Materials Research 14, 4470-4473.

148 L.F. Konikow and R.C. Ewing (1999) Is a probabilistic performance assessment enough? Editorial in Ground Water 37(4), 481-482.
2000
149 L.F. Konikow and R.C. Ewing (2000) Reply to Comments by B. Sagar on “Is a probabilistic performance assessment enough?” in Ground Water, vol. 38(1), 2-3.

150.

Mostafa Fayek, Peter Burns, Young-Xiang Guo and R.C. Ewing (2000) Micro-structures associated with uraninite alteration.  Journal of Nuclear Materials, 277, 204-210.

151.

B.X. Gu*, L.M. Wang and R.C. Ewing (2000) The effect of amorphization on the Cs ion exchange and retention capacity of zeolite-NaY.  Journal of Nuclear Materials 278, 64-72.

152.

W.L. Gong, W. Lutze and R.C. Ewing (2000) Zirconia ceramics for excess weapons plutonium waste.  Journal of Nuclear Materials, 277, 239-249.

153.

W.L. Gong, W. Lutze and R.C. Ewing (2000) Reaction sintered glass:  A durable matrix for spinel-forming nuclear waste compositions.  Journal of Nuclear Materials, 278, 77-84.

154.

S.X. Wang, L.M. Wang and R.C. Ewing (2000) Electron and ion irradiation of zeolites.  Journal of Nuclear Materials 278, 233-241.

155.

B.D. Begg, N.J. Hess, W.J. Weber, S.D. Conradson, M.J. Schweiger and R.C. Ewing (2000) XAS and XRD study of annealed 238Pu and 239Pu-substituted zircons. Journal of Nuclear Materials, 278, 212-224.

156.

S.X. Wang, L.M. Wang, R.C. Ewing and K.V. Govindan Kutty (2000) Ion irradiation of rare earth- and yittrium-titanate pyrochlores. Nuclear Instruments and Methods in Physics Research, B169, 135-140.

157.

L.M. Wang, S.X. Wang, R.C. Ewing, A. Meldrum, R.C. Birtcher, P. Newcomer Provencio, W.J. Weber and Hj. Matzke (2000) Irradiation-induced nanostructures. Materials Science & Engineering A, 286(1), 72-80.

158.

D. Zhao, L.M. Wang, R.C. Ewing, L. Li, L.L. Davis and D.M. Strachan (in press) Electron microprobe and electron microscopy characterization of precipitated gadolinium crystals in borosilicate glasses. Journal of Non-Crystalline Solids.

159.

S.X. Wang, G.R. Lumpkin, L.M. Wang, and R.C. Ewing  (2000) Ion irradiation-induced amorphization of six zirconolite compositions. Nuclear Instruments and Methods in Physics Research, B166-167, 293-298.

160.

F. Chen, P.C. Burns and R.C. Ewing (2000) Near-field behavior of 99Tc during the oxidative alteration of spent nuclear fuel.  Journal of Nuclear Materials, 278, 225-232.

161.

A. Meldrum, L.A. Boatner and R.C. Ewing (2000) A comparison of radiation effects in crystalline ABO4-type phosphates and silicates.  Mineralogical Magazine, 64(2), 183-192.

162.

D. Zhao and R.C. Ewing (2000) Alteration products of uraninite from the Colorado Plateau.  Radiochimica Acta, 88, 739-749.

163.

M. Zhang, E.K.H. Salje, I. Farnan, A. Graemer-Barber, P. Daniel, R.C. Ewing, A. Clark, Hugues Leroux (2000) Metamictization of zircon: Raman spectroscopic study.  Journal of Physics: Condensed Matter, 12, 1915-1925.

164.

L.M. Wang, S.X. Wang and R.C. Ewing (2000) Amorphization of cubic zirconia by cesium ion implantation.  Philosophical Magazine Letters, 80(5), 341-347.

165.

S.X. Wang, L.M. Wang, and R.C. Ewing (2000) Nano-scale glass formation in pyrochlore by heavy ion irradiation.  Journal of Non-Crystalline Solids, 274, 238-243.

166.

S. Rîos, E.K.H. Salje, M. Zhang and R.C. Ewing (2000) Amorphization in zircon: evidence for direct impact damage.  Journal of Physics: Condensed Matter, 12, 2401-2412.

167.

M. Zhang, E.K.H. Salje, Gian Carlo Capitani, Hugues Leroux, A.M. Clark, Jochen Schlüter and R.C. Ewing (2000) Annealing of alpha-decay damage in zircon:  A Raman spectroscopic study. Journal of Physics:  Condensed Matter, 12, 3131-3148.

168.

A. Meldrum, L.A. Boatner, C.W. White and R.C. Ewing (2000) Ion irradiation effects in nonmetals: formation of nanocrystals and novel microstructures.  Materials Research Innovations, 3, 190-204.

169.

M. Zhang, E.K.H. Salje, R.C. Ewing, I. Farnan, S. Ríos, J. Schlüter and P. Leggo (2000) Alpha-decay damage and recrystallization in zircon:  evidence for an intermediate state from infrared spectroscopy. Journal of Physics:  Condensed Matter, 12, 5189-5199.

170.

W.J. Weber and R.C. Ewing (2000) Plutonium immobilization and radiation effects.  Science, vol. 289, No. 5487, 2051-2051.

171.

B.X. Gu*, L.M. Wang, S.X. Wang, D.G. Zhao, V.H. Rotberg and R.C. Ewing (2000) The effect of H+ irradiation on the Cs ion exchange capacity of zeolite-NaY.  Journal of Materials Chemistry, vol. 10, 2610-2615.  

172.

M. Nyman, B.X. Gu*, L.M. Wang, R.C. Ewing and T.M. Nenoff (2000) Synthesis and characterization of a new microporous cesium silicotitanate (SNL-B) molecular sieve. Microporous and Mesoporous Materials, vol. 40, 115-125.

173.

L.M. Wang, S.X. Wang, S. Zhu* and R.C. Ewing (2000) Effects of fission product incorporation on the microstructure of cubic zirconia.  Journal of Nuclear Materials, vol. 289, 122-127.

174.

M. Nyman, F. Bonhomme, D.M. Teter, R.S. Maxwell, B.X. Gu*, L.M. Wang, R.C. Ewing and T.M. Nenoff (2000) Integrated experimental and computational methods for structure determination and characterization of a new highly stable cesium silicotitanate phase, Cs2TiSi6O15 (SNL-A). Chemistry of Materials. Vol. 12, 3449-3458.

2001

175.

L.M. Wang, S. Zhu, S.X. Wang, R.C. Ewing, N. Boucharat, A. Fernandez and