Atomic-scale chemical-analyses of niobium for superconducting radio-frequency cavities

IEEE Transactions on Applied Superconductivity

Volumn 17, Issue 2, 2007, Pages 1314-1317

  Yoon, Kevin E ^a   Seidman, David N ^a   Bauer, Pierre ^b,c   Boffo, Christian ^b   Antoine, Claire ^b,d  

^a Northwestern University   (United States)

^b FERMI NATIONAL ACCELERATOR LABORATORY   (United States)

^c EFDA CLOSE SUPPORT UNIT   (Germany)

^d DIF   (France)

Author keywords

Atom probe tomography (APT); Niobium; Oxygen; Superconducting accelerator cavities

Indexed keywords

MASS SPECTROMETRY; NIOBIUM; PARTICLE ACCELERATORS; SURFACE PHENOMENA; TOMOGRAPHY;

ATOM-PROBE TOMOGRAPHY (APT); SUPERCONDUCTING ACCELERATOR CAVITIES; SUPERCONDUCTING RADIO-FREQUENCY (SRF) CAVITY;

SUPERCONDUCTING MATERIALS;

EID: 34547437368     PISSN: 10518223     EISSN: None     Source Type: Journal    
DOI: 10.1109/TASC.2007.898059     Document Type: Conference Paper

References (19)

1. H. Padamsee, "The science and technology of superconducting cavities for accelerators," Superconductor Science & Technology, vol. 14, pp. R28-R51, 2001.
2. H. Padamsee, "Accelerating applications of RF superconductivity - Success stories," IEEE Trans. Applied Superconductivity, vol. 15, pp. 2432-2439, 2005.
3. Q. Ma and R. A. Rosenberg, "Angle-resolved X-ray photoelectron spectroscopy study of the oxides on Nb surfaces for superconducting r.f. cavity applications," Applied Surface Science, vol. 206, pp. 209-217, 2003.
4. I. Arfaoui, C. Guillot, J. Cousty, and C. Antoine, "Evidence for a large enrichment of interstitial oxygen atoms in the nanometer-thick metal layer at the NbO/Nb (110) interface," Journal of Applied Physics, vol. 91, pp. 9319-9323, 2002.
5. J. T. Sebastian, D. N. Seidman, K. E. Yoon, P. Bauer, T. Reid, C. Boffo, and J. Norem, "Atom-probe tomography analyses of niobium superconducting RF cavity materials," Physica C-Superconductivity and Its Applications, vol. 441, pp. 70-74, 2006.
6. G. Ciovati, "Effect of low-temperature baking on the radio-frequency properties of niobium, superconducting cavities for particle accelerators," Journal of Applied Physics, vol. 96, pp. 1591-1600, 2004.
7. J. Halbritter, P. Kneisel, V. Palmieri, and M. Pekeler, "Electric surface resistance R-E(T, f, E-perpendicular to) of Nb/Nb2O5-y-interfaces and Q-drop of superconducting Nb cavities," IEEE Trans. Applied Superconductivity, vol. 11, pp. 1864-1868, 2001.
8. M. K. Miller, A. Cerezo, M. G. Hetherington, and G. D. W. Smith, Atom Probe Field Ion Microscopy. Oxford: Oxford University Press, 1996.
9. M. K. Miller, Atom Probe Tomography: Analysis at the Atomic Level. New York: Kluwer Academic/Plenum Publishers, 2000.
10. A. Cerezo, T. J. Godfrey, S. J. Sijbrandij, G. D. W. Smith, and P. J. Warren, "Performance of an energy-compensated three-dimensional atom probe," Review of Scientific Instruments, vol. 69, pp. 49-58, 1998.
11. D. Blavette, B. Deconihout, S. Chambreland, and A. Bostel, "Three-dimensional imaging of chemical order with the tomographic atom-probe," Ultramicroscopy, vol. 70, pp. 115-124, 1998.
12. T. F. Kelly, P. P. Camus, D. J. Larson, L. M. Holzman, and S. S. Bajikar, "On the many advantages of local-electrode atom probes," Ultramicroscopy, vol. 62, pp. 29-42, 1996.
13. T. F. Kelly, T. T. Gribb, J. D. Olson, R. L. Martens, J. D. Shepard, S. A. Wiener, T. C. Kunicki, R. M. Ulfig, D. R. Lenz, E. M. Strennen, E. Oltman, J. H. Bunton, and D. R. Strait, "First data from a commercial local electrode atom probe (LEAP)," Microscopy and Microanalysis, vol. 10, pp. 373-383, 2004.
14. B. Visentin, "Low, medium, high field Q-slopes change with surface," presented, at the Pushing the Limit of RF Superconductivity, USA, 2004, Argonne National Laboratory, unpublished.
15. B. W. Krakauer, J. G. Hu, S. M. Kuo, R. L. Mallick, A. Seki, D. N. Seidman, J. P. Baker, and R. J. Loyd, "A system for systematically preparing atom-probe field-ion-microscope specimens for the study of internal interfaces," Review of Scientific Instruments, vol. 61, pp. 3390-3398, 1990.
16. O. C. Hellman, J. A. Vandenbroucke, J. Rusing, D. Isheim, and D. N. Seidman, "Analysis of three-dimensional atom-probe data by the proximity histogram," Microscopy and Microanalysis, vol. 6, pp. 437-444, 2000.
17. P. Russell, "Single crystal Nb of various orientations," presented at the Single Crystal Niobium Technology Workshop, Aranxa, Brazil, 2006, unpublished.
18. M. Grundner and J. Halbritter, "XPS and AES studies on oxide-growth and oxide coatings on niobium," Journal of Applied Physics, vol. 51, pp. 397-405, 1980.
19. C. Antoine, A. Aspart, M. Berthelot, Y. Gasser, J. P. Poupeau, and F. Valin, "Morphological and chemical studies of Nb samples after various surface treatments," presented at the 9th International Workshop on RF Superconductivity, Santa Fe, NM, USA, 1999, unpublished.