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Development of an SRF Crab Crossing Cavity for an Electron Ion Collider

Award Information

Department of Energy
Award ID:
Program Year/Program:
2010 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
45 c
Solicitation Number:
Small Business Information
Niowave, Inc.
1012 N. Walnut Street Lansing, MI 48906-5061
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: Yes
Phase 1
Fiscal Year: 2010
Title: Development of an SRF Crab Crossing Cavity for an Electron Ion Collider
Agency: DOE
Contract: N/A
Award Amount: $100,000.00


The highest priority in the Nuclear Physics program is, at present, the Facility for Rare Isotope Beams. In the longer term it is likely that a high priority will be an Electron Ion Collider, and several concepts are under development. In order to achieve the high luminosities that would be required to make such a machine attractive, some kind of bunch crabbing system will be required. For example, the Electron Ion Collider under study at Jefferson Lab would require a crabbing voltage between 20 and 50 MV at either 499 or 1497 MHz. RF crabbing systems are important components in linear colliders where the beams meet at an angle. A crabbing system rotates the bunches at the collision point so they meet head-on, instead of crossing at an angle, thus restoring and increasing the luminosity. The requirements for a crabbing system for an Electron Ion Collider, as envisaged at Jefferson Lab, are quite stringent, exceeding what has been accomplished so far. A crabbing system could, in principle, be built using room temperature cavities. However, in order to produce the needed voltage a large number of cavities and their associated rf power system would be required. An attractive alternative solution would be based on a superconducting cavity of a new design that has been introduced recently. This new design, if optimized for this application, could provide the required deflecting voltage in a footprint that would be compatible with the design of the interaction regions. Commercial Applications and Other Benefits: This STTR research would continue ODU, JLab, and Niowave

Principal Investigator:

Jean Delayen

Business Contact:

Jerry Hollister
Small Business Information at Submission:

Niowave, Inc.
1012 North Walnut Street Lansing, MI 48906

EIN/Tax ID: 030579926
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Old Dominion University
4600 Elkhorn Avenue
Norfolk, VA 23529
Contact: Gail Dodge
Contact Phone: 7576833468