Beam Pipe HOM Absorber for 750 MHz RF Cavity Systems

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$100,000.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-09ER85248
Agency Tracking Number:
90047
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Muons, Inc.
552 N. Batavia Avenue, Batavia, IL, 60510
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
117921259
Principal Investigator:
Michael Neubauer
Mr.
(707) 360-5038
mike@muonsinc.com
Business Contact:
Thomas Roberts
Dr.
(630) 840-2424
tjrob@muonsinc.com
Research Institution:
n/a
Abstract
Superconducting RF (SRF) systems, used in storage ring and linac applications at DOE facilities, typically contain unwanted frequencies or higher order modes (HOM) that must be absorbed by ferrite and other lossy ceramic-like materials. These materials are brazed to substrates that are strategically located and mechanically attached, often to the drift tube adjacent to the SRF cavity. However, the ferrites and their attachments weaken under tensile and thermal stresses and tend to crack. This project will develop an improved HOM absorber for high-gradient 750 MHz superconducting cavity systems. The work will build on novel construction techniques developed earlier at the SLAC B-factory. In Phase I, numerical modeling will be used to determine the optimum ferrite load required to meet broadband loss specifications. Prototype structures will be fabricated and tested for mechanical strength. Attachment techniques to the metal substrates will range from full compression rings to stress-free ferrite assemblies. Commercial Applications and other Benefits as described by the awardee Better attachment techniques for dissimilar materials, such as ferrite bonding to a metal substrate, are needed for many microwave applications where thermal heat transfer is critical and where a great difference between assembly temperature and operating temperatures exist.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government