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Prichard, B. A.

Paper Title Page
WEPMS024 Upgrades to the DAHRT Second Axix Induction Cells 2385
  • K. Nielsen, J. Barraza, M. Kang
    LANL, Los Alamos, New Mexico
  • F. M. Bieniosek, K. Chow, W. M. Fawley, E. Henestroza, L. R. Reginato, W. L. Waldron
    LBNL, Berkeley, California
  • R. J. Briggs, B. A. Prichard
    SAIC, Los Alamos, New Mexico
  • T. E. Genoni, T. P. Hughes
    Voss Scientific, Albuquerque, New Mexico
  The Dual-Axis Radiographic Hydrodynamics Test (DARHT) facility will employ two perpendicular electron Linear Induction Accelerators to produce intense, bremsstrahlung x-ray pulses for flash radiography. The second axis, DARHT II, features a 3-MeV injector and a 15-MeV, 2-kA, 1.6-microsecond accelerator consisting of 74 induction cells and drivers. Major induction cell components include high flux swing magnetic material (Metglas 2605SC) and a MycalexTM insulator. The cell drivers are pulse forming networks (PFNs). The DARHT II accelerator cells have undergone a series of test and modeling efforts to fully understand their operational parameters. Physical changes in the cell oil region, the cell vacuum region, and the cell drivers, together with different operational and maintenance procedures, have been implemented in the prototype. A series of prototype acceptance tests have demonstrated that the required cell lifetime is met at the increased performance levels. Shortcomings of the original design are summarized and improvements to the design, their resultant enhancement in performance, and various test results are discussed.