Development of a Superconducting RF 500 MHz Quarter Wave Resonator for Synchrotron Light Sources

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-11ER90122
Agency Tracking Number: 97149
Amount: $150,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solicitation Year: 2011
Solicitation Topic Code: 15 b
Solicitation Number: DE-FOA-0000413
Small Business Information
1012 N. Walnut Street, Lansing, MI, 48906-5061
DUNS: 621290001
HUBZone Owned: Y
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Chase Boulware
 Dr.
 (517) 999-3475
 boulware@niowaveinc.com
Business Contact
 Jerry Hollister
Title: Dr.
Phone: (517) 999-3475
Email: hollister@niowaveinc.com
Research Institution
 Stub
Abstract
in accelerators for light sources, first as passive cavities for stabilizing the beam and later in the accelerating sections. In this SBIR proposal, Niowave and Brookhaven National Lab will collaborate to adapt the quarter wave cavity geometry for use as an accelerating structure for light sources. The interaction between the electron beam and higher-order modes in the accelerating cavities can lead to beam breakup instabilities that limit the maximum current that the cavities can maintain. Quarter wave structures have a higher-order mode spectrum which differs greatly from conventional elliptically-shaped cavities, with the frequency of the first such mode almost three times higher than the fundamental. This mode is not so strongly excited by the passing electron beam, allowing higher beam currents which in turn lead to higher brightness for the light source. This SBIR proposes collaboration between Niowave, Inc. and Brookhaven National Lab on the design of a quarter wave accelerating cavity suitable for a light-source accelerator such as the NSLS-II. In Phase I, an electromagnetic design will be optimized and a conceptual plan for the insulating cryomodule will be developed. In Phase II, the niobium cavity will be fabricated and installed in the module for RF tests at cryogenic temperatures. The successful conclusion of this project puts Niowave in position to market quarter-wave accelerating systems to light source projects around the world in Phase III.

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

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