Zobrazeno 1 - 10
of 47
pro vyhledávání: '"E. R. Gray"'
Autor:
Kevin M. Hubbard, E. R. Gray, G. R. Swain, D. W. Cooke, N. E. Elliott, Paul N. Arendt, Helmut Piel
Publikováno v:
Journal of Superconductivity. 5:431-435
A nonplanar X-band cavity amenable to coating with high-temperature superconducting films by conventional physical vapor deposition processes has been designed, fabricated, and tested. The cavity geometry resembles a symmetric clamshell configuration
Autor:
Barry Ritchie, Hanspeter Vogel, G. Tubb, R. A. DeHaven, E. R. Gray, M. Peiniger, Randall P. Johnson, John M. O'Donnell, D. Kiehlmann, J. Novak, T. Averett, J. A. McGill, J. M. Applegate, Christopher Morris, H. Ward, E. Haebel, C. Fred Moore, B. J. McCloud, J. Beck, Peter Schäfer, J. Davis, U. Klein, R. E. Lomax, B. Rusnak
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 317:445-452
The SCRUNCHER is a superconducting radio-frequency cavity for manipulating the longitudinal phase space of the secondary pion beam from the low energy pion channel at LAMPF. Test results of the cavity performance and initial results from in-beam test
Autor:
G. A. Reeves, D. W. Cooke, Paul N. Arendt, D. R. Brown, E. R. Gray, A. Mayer, N. E. Elliott, A.M. Portis
Publikováno v:
IEEE Transactions on Magnetics. 27:880-883
Microwave surface resistance measurements were made on large-area (11.4-cm/sup 2/) Tl-Ba-Ca-Cu-O thick films/ss ( approximately 10 mu m) which were magnetron sputtered onto oriented Ag alloy (Consil 995) substrates. Initial films were prepared by dep
Autor:
D. W. Cooke, M. S. Jahan, M. A. Maez, W. L. Hults, J. L. Smith, E. R. Gray, A. Mayer, Bryan L. Bennett
Publikováno v:
Journal of Luminescence. :823-827
Thermally stimulated luminescence (TSL) measurements were conducted both on bare substrates and on high-temperature superconducting (HTS) films deposited onto representative substrates, to demonstrate that TSL is applicable to HTS films in detecting
Publikováno v:
Journal of Luminescence. :IN11-822
It was recognized shortly after the discovery of high-temperature superconductors (HTS) that these materials would exhibit thermally stimulated luminescence (TSL) as a manifestation of their granularity and consequent inclusion of insulating material
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 39:1539-1544
Microwave surface resistance measurements have been made on large-area Ti-Ba-Ca-Cu-O thick films magnetron-sputtered onto oriented Ag alloy substrates by replacing the end wall of an 18 GHz TE/sub 011/ mode Cu cavity with the superconducting film. Th
Autor:
N. E. Elliott, Bryan L. Bennett, D. W. Cooke, Paul N. Arendt, D. R. Brown, G. A. Reeves, E. R. Gray, A.M. Portis, A. J. Klapetzky
Publikováno v:
Journal of Superconductivity. 3:261-267
Microwave surface resistance (R s ) measurements on large-area (11.4 cm2) Tl-based films deposited onto Ag (Consil 995) substrates have been made at a frequency of 18 GHz as a function of temperature. Deposition onto unoriented Ag substrates yields u
Publikováno v:
Journal of Superconductivity. 3:297-304
A description of cavities used in the study of the microwave properties of the high-temperature superconductors is followed by a lumped-circuit analysis of the coupling of transmission lines and resonators. The frequency dependence of the reflected a
Autor:
Helmut Piel, H.H.S. Javadi, Paul N. Arendt, D.B. Rensch, J.Y. Josefowicz, R.J. Houlton, D. W. Cooke, Nigel Klein, G. Müller, S. Orbach, E.A. Meyer, B. Rusnak, E. R. Gray, George Grüner, L. Drabeck, F. Krajenbrink
Publikováno v:
Solid State Communications. 73:297-300
We have measured the surface resistance at 22 GHz, 86 GHz, and 148 GHz of a YBa 2 Cu 3 O 7 film (5000 A) deposited on a LaGaO 3 substrate. X-ray diffraction data show the film to be highly c -axis and a -axis oriented, and the low values of measured
Autor:
J. Zumbro, J. Langenbrunner, E. R. Gray, R. A. DeHaven, J. Novak, P. Walstrom, Henry A. Thiessen, B. Rusnak, J. N. Dimarco, G. Spalek
Publikováno v:
Proceedings of International Conference on Particle Accelerators.
The Superconducting RF Cavity Development Program at Los Alamos has designed, fabricated, and tested single-cell niobium cavities at 3 GHz and 805 MHz. This work is being done in preparation for procuring and testing a multicell niobium cavity. The m