Supersonic Gas Jet Nozzle for Laser Wakefield Acceleration

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-08ER85041
Agency Tracking Number: 85756
Amount: $76,893.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solitcitation Year: 2008
Solitcitation Topic Code: 49 a
Solitcitation Number: DE-PS02-07ER07-36
Small Business Information
Sti Optronics, Inc.
2755 Northup Way, Bellevue, WA, 98004
Duns: 055499800
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Wayne Kimura
 (425) 827-0460
Business Contact
 Wayne Kimura
Title: Dr.
Phone: (425) 827-0460
Research Institution
Supersonic gas jet nozzles, used to generate the plasma part of a laser wakefield acceleration (LWFA) system, would enable the development of high-gradient advanced electron accelerators. However, the nozzle requires sharp boundaries between the jet stream and the surrounding vacuum. Such sharp boundaries are possible if the gas flows supersonically. The throat dimensions of the supersonic gas jet nozzle must have <10% error in order to ensure a uniform plasma density at the outlet of the nozzle. Due to the miniature size of the nozzle, achieving this high level of dimensional accuracy is a nontrivial fabrication problem. This project will develop fabrication technology for miniature supersonic gas jet nozzle profiles with the required dimensional accuracy. Phase I will build a prototype supersonic gas jet nozzle suitable for use in laser wakefield acceleration experiments. Existing diagnostics and software will be used to characterize the prototype. During Phase II, new capabilities will be incorporated into the nozzle design, including tapered density profiles. Commercial Applications and other Benefits as described by the awardee: In addition to the application to high energy physics, miniature, supersonic gas jet nozzles should have application to accelerators used in industrial processing, medicine, homeland defense, and high-energy physics.

* information listed above is at the time of submission.

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