Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Superconducting Nb thin films on Cu and Cu alloys for applications in SRF accelerators

Conference ·
OSTI ID:1968157
 [1];  [1];  [2];  [2];  [2];  [2];  [2];  [3];  [1];  [3];  [3]
  1. Alameda Applied Sciences Corporation, San Leandro, CA, USA
  2. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
+ Show Author Affiliations
This article presents the results of Nb thin films deposited on Cu and phosphor bronze via coaxial energetic deposition (CEDTM). CEDTM is a non-equilibrium cathodic arc process that drives medium energy (50 - 150 eV) ions into a few atomic layers beneath the surface to promote the growth of dense, ordered films via sub-plantation physics1. Nb films deposited on crystalline substrates by CEDTM have shown bulk-Nb like (>300-500) RRR values1. Here we describe Nb films of 1-10 ?m deposited on coupons and complex structures made of Cu and phosphor bronze at substrate temperatures of 100 have been achieved on fine grain Cu with little surface preparation. The vortex penetration magnetic field was measured by DC SQUID and these results are presented along with comparisons between bulk Nb and thin film Nb on crystalline substrates. The CEDTM approach has applications in superconducting bellows interconnects as well as to SRF cavities. 1 M. Krishnan, E. Valderrama, B. Bures, K. Wilson-Elliott, X. Zhao, L. Phillips, Anne-Marie Valente-Feliciano, Joshua Spradlin, C. Reece and K. Seo, Superconductor Science and Technology, vol. 24, no. 11, p. 115002, Nov. 2011.
Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
DOE Contract Number:
AC05-06OR23177
OSTI ID:
1968157
Report Number(s):
JLAB-ACC-12-1498; DOE/OR/23177-2509
Country of Publication:
United States
Language:
English

Similar Records

Nb3Sn thin films grown using energetic condensation for SRF applications
Conference · Mon Oct 01 00:00:00 EDT 2012 · OSTI ID:1968158
Surface Preparation of Metallic Substrates for Quality SRF Thin Films
Conference · Fri Jun 01 00:00:00 EDT 2012 · OSTI ID:1994826
Structural Characterization of Nb Films Deposited by ECR Plasma Energetic Deposition on Crystalline Insulators
Conference · Fri Jun 01 00:00:00 EDT 2012 · OSTI ID:1994823

Related Subjects