Multilayer ALD Films for SRF Cavities

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-09ER86381
Agency Tracking Number: 91296
Amount: $100,000.00
Phase: Phase I
Program: STTR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: 46 a
Solicitation Number: DE-PS02-08ER08-34
Small Business Information
12050 Jefferson Avenue, Suite 240, Newport News, VA, 23606
DUNS: 099194958
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Roy Crooks
 (757) 269-0230
Business Contact
 Tracy Crooks
Title: Ms
Phone: (757) 269-0230
Research Institution
 Old Dominion University
 Mary Garrett
 Office of Grants and Contracts
Norfolk, VA, 23508
 (757) 683-4293
 Nonprofit college or university
The advancement of nuclear physics research relies on advances in accelerator performance, and much of that depends on improvements in superconducting radio frequency (SRF) cavities. While the operating gradients of niobium SRF cavities have increased from about 2 MV/m in the late 1970¿s to more than 40 MV/m today, they are approaching a theoretical limit near 50 MV/m, where the critical magnetic field for niobium is reached. Previous work has suggested a method of surpassing this limit by using multilayer¿s of superconductor-insulator-superconductor thin films. This project will produce single layer and multilayer NbN/Al2O3 films on niobium by atomic layer deposition. The SRF properties of these films will be evaluated by testing at Thomas Jefferson National Laboratory. Commercial Applications and other Benefits as described by the awardee: SRF cavities are used for many areas of nuclear physics and high energy physics research, as well as for medium and low energy particle accelerators, and free electron lasers. Cavities manufactured from alternate materials that support increased accelerating gradients would provide better performance, shorter linacs, and lower cost. Commercial markets for advanced accelerators include industrial processing, medical diagnostics, and pharmaceutical research.

* Information listed above is at the time of submission. *

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