Electricity: measuring and testing – Determining nonelectric properties by measuring electric... – Beam of atomic particles
Reexamination Certificate
2005-06-23
2008-05-27
Nguyen, Vincent Q. (Department: 2858)
Electricity: measuring and testing
Determining nonelectric properties by measuring electric...
Beam of atomic particles
C324S076110, C324S754120
Reexamination Certificate
active
07378830
ABSTRACT:
A micro beam Faraday cup assembly includes a refractory metal layer with an odd number of thin, radially positioned traces in this refractory metal layer. Some of the radially positioned traces are located at the edge of the micro modified Faraday cup body and some of the radially positioned traces are located in the central portion of the micro modified Faraday cup body. Each set of traces is connected to a separate data acquisition channel to form multiple independent diagnostic networks. The data obtained from the two diagnostic networks are combined and inputted into a computed tomography algorithm to reconstruct the beam shape, size, and power density distribution.
REFERENCES:
patent: 5382895 (1995-01-01), Elmer et al.
patent: 5468966 (1995-11-01), Elmer et al.
patent: 5554926 (1996-09-01), Elmer et al.
patent: 5583427 (1996-12-01), Teruya et al.
patent: 6300755 (2001-10-01), Elmer et al.
patent: 2004/0026627 (2004-02-01), Nakayama et al.
Elmer, J. W., et al., “An Enhanced Faraday Cup for Rapid Determination of Power Density Distribution in Electron Beams,” Welding Journal, 80 (12), pp. 288s-295s, Dec. 2001.
Elmer, John W., et al, “Beam Profile Analysis for the C&MS B231 Electron Beam Welding Machines,” Lawrence Livermore National Laboratory, LLNL UCRL-IS-127549, Jun. 12, 1997.
Elmer, J. W., “Fast Method for Measuring Power Density Distribution of Non-Circular and Irregular Electron Beams,” Science and Technology of Welding and Joining, vol. 3, No. 2, pp. 51-58, 1998.
Teruya, Alan, et al., “A System for the Tomographic Determination of the Power Distribution in Electron Beams,” The Laser and Electron Beam in Welding, Cutting, and Surface Treatment State-of-the-Art 1991, Bakish Materials Corp., pp. 125-140, 1991.
Elmer, J. W., et al., “Tomographic Imaging of Noncircular and Irregular Electron Beam Current Density Distributions,” Welding Journal 72 (ii), pp. 493s-505s, Nov. 1993.
Elmer John W.
Palmer Todd A.
Teruya Alan T.
Walton Chris C.
Lawrence Livermore National Security LLC
Lee John H.
Nguyen Vincent Q.
Scott Eddie E.
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