Tomographic determination of the power distribution in electron beams

Patent · Mon Jan 01 04:00:00 EST 1996

OSTI ID:870733

Teruya, Alan T ^[1]; Elmer, John W ^[2]

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1. Livermore, CA
2. Pleasanton, CA

A tomographic technique for determining the power distribution of an electron beam using electron beam profile data acquired from a modified Faraday cup to create an image of the current density in high and low power beams. A refractory metal disk with a number of radially extending slits is placed above a Faraday cup. The beam is swept in a circular pattern so that its path crosses each slit in a perpendicular manner, thus acquiring all the data needed for a reconstruction in one circular sweep. Also, a single computer is used to generate the signals actuating the sweep, to acquire that data, and to do the reconstruction, thus reducing the time and equipment necessary to complete the process.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5583427
• OSTI ID: 870733
• Country of Publication: United States
• Language: English

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