Physical and mechanical properties of single and large crystal high-RRR niobium
Conference
·
OSTI ID:876410
High RRR bulk niobium SRF cavities are the building blocks of the latest and future particle accelerators, free electron lasers (FEL's) and energy recovery linacs (ERL's.). These cavities are fabricated from high purity (RRR) poly crystalline niobium sheets via deep drawing, e-beam welding and surface treatment to obtain high accelerating gradients and quality factors. However, the starting bulk RRR niobium properties are not yet optimized with respect to both cost reduction and achievement of ultimate performance. A major limitation in achieving the highest performance can possibly be attributed to imperfections at or near the grain boundaries. Recently, at Jefferson Lab single/large grain RRR niobium cavities are developed using customized RRR ingots with optimized amounts of impurities such as Tantalum and minimizing the interstitial contents (O, C, N and H).
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA
- Sponsoring Organization:
- USDOE - Office of Energy Research (ER)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 876410
- Report Number(s):
- JLAB-ACC-05-314; DOE/ER/40150-3754
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mechanical properties of three types of high RRR niobium
Recent progress in large grain/single crystal high RRR niobium
Introduction to Ingot Niobium
Conference
·
Tue Nov 30 23:00:00 EST 2004
·
OSTI ID:955472
Recent progress in large grain/single crystal high RRR niobium
Conference
·
Sun Nov 06 23:00:00 EST 2005
·
OSTI ID:850168
Introduction to Ingot Niobium
Conference
·
Mon Feb 28 23:00:00 EST 2011
· AIP Conf.Proc.
·
OSTI ID:1021415