Search Results - "Reece, C. E."

rf surface impedance of a two-band superconductor by Xiao, Binping, Reece, C. E.

“…In this paper, we extend the Mattis-Bardeen theory to obtain the surface impedance of a two-band superconductor, and apply it to magnesium diboride (MgB2) for…”
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Superconducting surface impedance under radiofrequency field by Xiao, B.P., Reece, C.E., Kelley, M.J.

“…•SRF accelerator cavity performance (quality factor Qo) is controlled by surface impedance.•A field-dependent derivation of the Mattis–Bardeen theory of SRF…”
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Niobium thin film deposition studies on copper surfaces for superconducting radio frequency cavity applications by Roach, W. M., Beringer, D. B., Skuza, J. R., Oliver, W. A., Clavero, C., Reece, C. E., Lukaszew, R. A.

“…Thin film coatings have the potential to increase both the thermal efficiency and accelerating gradient in superconducting radio frequency accelerator…”
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RF surface resistance tuning of superconducting niobium via thermal diffusion of native oxide by Lechner, E. M., Angle, J. W., Stevie, F. A., Kelley, M. J., Reece, C. E., Palczewski, A. D.

“…Recently, Nb superconducting radio frequency cavities vacuum heat treated between 300 and 400 °C for a few hours have exhibited very high quality factors (∼5 ×…”
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Laser polishing for topography management of accelerator cavity surfaces by Zhao, L., Klopf, J. M., Reece, C. E., Kelley, M. J.

“…Improved energy efficiency and reduced cost are greatly desired for advanced particle accelerators. Progress toward these goals can be made by…”
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Roughness analysis applied to niobium thin films grown on MgO(001) surfaces for superconducting radio frequency cavity applications by Beringer, D. B., Roach, W. M., Clavero, C., Reece, C. E., Lukaszew, R. A.

“…This paper describes surface studies to address roughness issues inherent to thin film coatings deposited onto superconducting radio frequency (SRF) cavities…”
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Surface analysis of Nb materials for SRF cavities by Maheshwari, P., Tian, H., Reece, C. E., Kelley, M. J., Myneni, G. R., Stevie, F. A., Rigsbee, J. M., Batchelor, A. D., Griffis, D. P.

“…Superconducting Radio Frequency (SRF) cavities provide enhanced efficiency and reduced energy consumption in present‐day particle accelerators. Niobium is the…”
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Strain Effects on the Crystal Growth and Superconducting Properties of Epitaxial Niobium Ultrathin Films by Clavero, C, Beringer, D. B, Roach, W. M, Skuza, J. R, Wong, K. C, Batchelor, A. D, Reece, C. E, Lukaszew, R. A

“…Superconducting ultrathin films grown epitaxially onto crystalline substrates exhibit strained epitaxial growth due to lattice mismatch, which can have a…”
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Energetic condensation growth of Nb thin films by Krishnan, M., Valderrama, E., James, C., Zhao, X., Spradlin, J., Feliciano, A-M Valente, Phillips, L., Reece, C. E., Seo, K., Sung, Z. H.

“…This paper describes energetic condensation growth of Nb films using a cathodic arc plasma, whose 60-120 eV ions penetrate a few monolayers into the substrate…”
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Thermal-vacuum stability of the surface oxide complex on Cu by Bagge-Hansen, M., Outlaw, R. A., Seo, K., Reece, C. E., Spradlin, J., Manos, D. M.

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rf surface impedance of a two-gap superconductor, considering magnesium diboride for accelerator applications by Xiao, Binping, Reece, C. E

“…Phys. Rev. Accel. Beams 22, 053101 (2019) In this paper, we apply the two-band extension [1] of BCS theory [2] into the Mattis-Bardeen theory [3] to obtain the…”
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Nb3Sn multicell cavity coating system at JLAB by Eremeev, G, Clemens, W, Macha, K, Reece, C. E, Valente-Feliciano, A. M, Williams, S, Pudasaini, U, Kelley, M

“…SRF niobium cavities are the building blocks of modern accelerators for scientific applications. Lower surface resistance, higher fields, and high operating…”
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Laser polishing for topography management of accelerator cavity surfaces: Laserpolieren als Topographiemanagement zur schnellen Herstellung von Oberflächen mit Mulden by Zhao, L., Klopf, J. M., Reece, C. E., Kelley, M. J.

“…Improved energy efficiency and reduced cost are greatly desired for advanced particle accelerators. Progress toward these goals can be made by…”
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Superconducting Surface Impedance under Radiofrequency Field by Xiao, B. P, Reece, C. E, Kelley, M. J

“…Physica C: Superconductivity Volume 490. 15 July 2013. Pages 26-31 Based on BCS theory with moving Cooper pairs, the electron states distribution at 0K and the…”
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Large crystal grain niobium thin films deposited by energetic condensation in vacuum arc by Zhao, Xin, Valente-Feliciano, A.-M., Xu, C., Geng, R. L., Phillips, L., Reece, C. E., Seo, K., Crooks, R., Krishnan, M., Gerhan, A., Bures, B., Elliott, K. Wilson, Wright, J.

“…This article presents evidence for unprecedented, large crystal grain size in ∼ 1 μ m thick Nb films that were grown on sapphire and copper substrates using a…”
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Nb3Sn Superconducting Radiofrequency Cavities: a Maturing Technology for Particle Accelerators and Detectors by Posen, S, Liepe, M, Eremeev, G, Pudasaini, U, Reece, C. E

“…Nb3Sn superconducting radiofrequency (SRF) cavities have substantial potential for enabling new performance capabilities for particle accelerators for high…”
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Next-Generation Superconducting RF Technology based on Advanced Thin Film Technologies and Innovative Materials for Accelerator Enhanced Performance and Energy Reach by Valente-Feliciano, A. - M, Antoine, C, Anlage, S, Ciovati, G, Delayen, J, Gerigk, F, Gurevich, A, Junginger, T, Keckert, S, Keppe, G, Knobloch, J, Kubo, T, Kugeler, O, Manos, D, Pira, C, Proslier, T, Pudasaini, U, Reece, C. E, Rimmer, R. A, Rosaz, G. J, Saeki, T, Vaglio, R, Valizadeh, R, Vennekate, H, Delsolaro, W. Venturini, Vogel, M, Welander, P. B, Wenskat, M

“…Superconducting RF is a key technology for future particle accelerators, now relying on advanced surfaces beyond bulk Nb for a leap in performance and…”
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Secondary ion mass spectrometry for SRF cavity materials by Tuggle, J, Pudasaini, U, Palczewski, A. S, Reece, C. E, Stevie, F. A, Kelley, M. J

“…Historically, many advances in superconducting radio frequency (SRF) cavities destined for use in advanced particle accelerators have come empirically, through…”
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Key directions for research and development of superconducting radio frequency cavities by Belomestnykh, S, Posen, S, Bafia, D, Balachandran, S, Bertucci, M, Burrill, A, Cano, A, Checchin, M, Ciovati, G, Cooley, L. D, Semione, G. Dalla Lana, Delayen, J, Eremeev, G, Furuta, F, Gerigk, F, Giaccone, B, Gonnella, D, Grassellino, A, Gurevich, A, Hillert, W, Iavarone, M, Knobloch, J, Kubo, T, Kwok, W. K, Laxdal, R, Lee, P. J, Liepe, M, Martinello, M, Melnychuk, O. S, Nassiri, A, Netepenko, A, Padamsee, H, Pagani, C, Paparella, R, Pudasaini, U, Reece, C. E, Reschke, D, Romanenko, A, Ross, M, Saito, K, Sauls, J, Seidman, D. N, Solyak, N, Sung, Z, Umemori, K, Valente-Feliciano, A. -M, Delsolaro, W. Venturini, Walker, N, Weise, H, Welp, U, Wenskat, M, Wu, G, Xi, X. X, Yakovlev, V, Yamamoto, A, Zasadzinski, J

“…Radio frequency superconductivity is a cornerstone technology for many future HEP particle accelerators and experiments from colliders to proton drivers for…”
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High Thermal Conductivity Cryogenic RF Feedthroughs for Higher Order Mode Couplers by Reece, C.E., Daly, E.F., Elliott, T., Phillips, H.L., Ozelis, J.P., Rothgeb, T., Wilson, K., Wu, G.

“…The use of higher-order-mode (HOM) pickup probes in the presence of significant fundamental RF fields can present a thermal challenge for CW or high average…”
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