Nb Coatings for Bellows used in SRF Accelerators

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-12ER90246
Agency Tracking Number: 98843
Amount: $150,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2012
Solicitation Year: 2012
Solicitation Topic Code: 12 d
Solicitation Number: DE-FOA-0000577
Small Business Information
Alameda Applied Sciences Corporation
3077 Teagarden St., San Leandro, CA, 94577-5720
DUNS: 836439968
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Colt James
 Dr.
 (510) 483-4156 x1
 james@aasc.net
Business Contact
 Mahadevan Krishnan
Title: Dr.
Phone: (510) 438-4156 x1
Email: krishnan@aasc.net
Research Institution
 Stub
Abstract
High-current particle accelerators have need for low-impedance bellows connecting accelerating cells and in other areas of the accelerator. Typical techniques to decrease surface impedance are to use shields of superconducting Nb, however, as these shields move they produce particulates that can be detrimental to operation if they find their way into the storage ring. Alameda Applied Sciences Corporation proposes to deposit a superconducting layer of Nb on the inside surface of phosphorus bronze bellows. This superconducting layer should lead to a decrease in the surface resistance at cryogenic temperatures and a decrease in the power consumption of the bellows. Thomas Jefferson National Laboratory will provide analysis facilities for this effort. Commercial Applications and Other Benefits: The production of a particulate-free, low-impedance bellows has application in many of todays high-current particle accelerators, such as accelerator light sources and spallation neutron sources.

* information listed above is at the time of submission.

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