Search Results - "Ullmann, JL"

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    Improved critical currents in a Bi-2223/Ag coil using splayed columnar defects by Coulter, J.Y., Willis, J.O., Maley, M.P., Ullmann, J.L.

    Published in Physica. C, Superconductivity (01-10-2004)
    “…We have irradiated a double pancake coil of Bi-2223/Ag sheathed tape with high energy protons, which yield splayed columnar defects in the superconductor core…”
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    Journal Article
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    Quantum constraints on technological superconductors by Thompson, J. R., Ossandon, J. G., Krusin-Elbaum, L., Song, K. J., Christen, D. K., Ullmann, J. L.

    Published in Applied physics letters (14-06-1999)
    “…Vortex pinning in textured Bi2Sr2CaCu2Ox/Ag superconducting tapes was enhanced by irradiation with 0.8 GeV protons, creating randomly oriented columnar…”
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    Diminished equilibrium magnetization in Hg-1223 and Tl-2212 superconductors with fission-generated columnar defects by Thompson, J.R, Ossandon, J.G, Christen, D.K, Song, K.J, Kim, H.J, Krusin-Elbaum, L, Sorge, K.D, Ullmann, J.L

    Published in Physica. C, Superconductivity (01-05-2003)
    “…When randomly oriented columnar defects (CDs) are added to Hg-1223 and Tl-2212 superconductors, their vortex state equilibrium magnetization Meq decreases…”
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    Quantum tunneling of vortices in Bi-2212 with randomly oriented columnar defects by Thompson, J.R, Ossandon, J.G, Krusin-Elbaum, L, Song, K.J, Christen, D.K, Ullmann, J.L

    “…Vortex pinning in textured Bi-2212/Ag superconducting tapes was enhanced by randomly oriented columnar defects, formed by GeV proton-induced fission of…”
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    Journal Article
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    Current decay from quantum tunneling of vortices in Bi-2212 superconductors by Thompson, J.R., Ossandon, J.G., Krusin-Elbaum, L., Song, K.J., Kim, H.J., Christen, D.K., Ullmann, J.L.

    Published in Physica. C, Superconductivity (2000)
    “…We have created randomly oriented columnar defects in textured Bi 2Sr 2CaCu 2O x /Ag superconducting tapes and Tl-2212 materials, using a fission process…”
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    Single event effects and performance predictions for space applications of RISC processors by Kimbrough, J.R., Colella, N.J., Denton, S.M., Shaeffer, D.L., Shih, D., Wilburn, J.W., Coakley, P.G., Casteneda, C., Koga, R., Clark, D.A., Ullmann, J.L.

    Published in IEEE transactions on nuclear science (01-12-1994)
    “…Proton and ion single event phenomena (SEP) tests were performed on 32-b processors including R3000A's from all commercial manufacturers along with the…”
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    Double differential cross sections for neutron emission induced by 256 MeV and 800 MeV protons by Stamer, S, Scobel, W, Amian, WB, Byrd, RC, Haight, RC, Ullmann, JL, Bauer, RW, Blann, M, Pohl, BA, Bisplinghoff, J, Bonetti, R

    Published in Physical review. C, Nuclear physics (01-04-1993)
    “…Double differential cross sections were measured for neutron emission induced by 256 MeV and 800 MeV protons incident on Li, Al, Zr, and Pb targets. The…”
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    Energy dependence of the Gamow-Teller strength in p-shell nuclei observed in the (n,p) reaction by Sorenson, DS, Aslanoglou, X, Brady, FP, Drummond, JR, Haight, RC, Howell, CR, King, NS, Ling, A, Lisowski, PW, Park, BK, Rapaport, J, Romero, JL, Tornow, W, Ullmann, JL

    Published in Physical review. C, Nuclear physics (01-02-1992)
    “…Cross sections from 0{degree} to 10{degree} (lab) have been measured for ground-state Gamow-Teller transitions for the reactions {sup 6}Li({ital n},{ital…”
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