Rotating Aperture System

Patent · Mon Jan 17 23:00:00 EST 2005

OSTI ID:879860

Rusnak, Brian ^[1]; Hall, James M ^[1]; Shen, Stewart ^[2]; Wood, Richard L ^[3]

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1. Livermore, CA
2. Danville, CA
3. Santa Fe, NM

A rotating aperture system includes a low-pressure vacuum pumping stage with apertures for passage of a deuterium beam. A stator assembly includes holes for passage of the beam. The rotor assembly includes a shaft connected to a deuterium gas cell or a crossflow venturi that has a single aperture on each side that together align with holes every rotation. The rotating apertures are synchronized with the firing of the deuterium beam such that the beam fires through a clear aperture and passes into the Xe gas beam stop. Portions of the rotor are lapped into the stator to improve the sealing surfaces, to prevent rapid escape of the deuterium gas from the gas cell.

• Research Organization: Lawrence Livermore National Laboratory
• DOE Contract Number: W-7405-ENG-48
• Assignee: The United States of America as represented by the United States Department (Washington, DC)
• Patent Number(s): US 6,844,561
• Application Number: 10/284175
• OSTI ID: 879860
• Country of Publication: United States
• Language: English