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Novel RF Couplers with Double Windows Design for the ILC

Award Information

Agency:
Department of Energy 		Branch:
N/A 		Award ID:
84050 		Program Year/Program:
2007 / SBIR
Agency Tracking Number:
82780 		Solicitation Year:
N/A 		Solicitation Topic Code:
N/A 		Solicitation Number:
N/A
Small Business Information
Amac International, Inc.
12050 Jefferson Avenue Suite 328 Newport News, VA 23606
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: Novel RF Couplers with Double Windows Design for the ILC
Agency: DOE
Contract: DE-FG02-07ER84851
Award Amount: $99,995.00
 

Abstract:

The ILC accelerator project will require several thousand superconducting radio frequency (RF) cavities with critical RF Input Couplers. These cavities require ultra-clean vacuum and surface cleanness; however, the breakage of a ceramic RF coupler window, with the consequent inrushing of air and contaminants, can have catastrophic effects on performance, and would require a time consuming and expensive overhaul of the accelerator. To eliminate or minimize this potential risk, the large particle accelerators are increasingly requiring a double windows design with a vacuum space between the two windows. However, the high cost of conventional double windows dictates the need for an innovative coupler design and efficient manufacturing. This project will develop a novel double-window RF coupler design that utilizes a combination of features, including selective capacitive coupling of the inner conductor, the removal of the bellows, and a permanent vacum system for the space between the double windows. In Phase I, the feasibility of the innovative double-window coupler for the ILC will be theoretically calculated for different alternatives, and the optimum solution will be selected for Phase II. In Phase II, a prototype coupler for the ILC will be designed, fabricated, and tested with high RF power. Commercial Applications and other Benefits as described by the awardee: Cost effective, operationally reliable, and system-simplified RF coupler designs should find wide use for many DOE projects besides the ILC. The technologies should have a very strong impact on the cost of the RF input couplers and associated equipment for the ILC project, and for the high RF products industry.

Principal Investigator:

Quansheng Shu
Dr
7572493595
qsshu@amacintl.com

Business Contact:

Ian Phipps
Dr
7572493595
ianp@amacintl.com
Small Business Information at Submission:

Amac International, Inc.
12050 Jefferson Avenue Suite 328 Newport News, VA 23606

EIN/Tax ID: 541916257
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No