Publications

Ormond, Eugene C.; Garcia, M.R.; Parrales, Martin F.; Smith, John R.; Amos, Percy A.; Hogge, Keith W.; Misch, Michael K.; Mohammed, Mohammed M.; Truong, Hoai-Tam V.

Abstract not provided.

IEEE International Pulsed Power Conference

Ormond, Eugene C.; Parrales, Martin F.; Garcia, M.R.; Smith, John R.; Amos, Percy H.; Hogge, Keith W.; Misch, Michael K.; Mohammed, Mohammed; Truong, Hoai T.

The Cygnus Dual Beam Radiographic Facility consists of two identical radiographic sources each with a dose rating of 4-rad at 1 m, and a 1-mm diameter spot size. The development of the rod pinch diode was responsible for the ability to meet these criteria1. The rod pinch diode in a Cygnus machine uses a 0.75-mm diameter, tapered tip, tungsten anode rod extended through a 9-mm diameter, aluminum cathode aperture. When properly configured, the electron beam born off the aperture edge can self-insulate and pinch onto the tip of the rod creating an intense, small x-ray source. The Cygnus sources are utilized as the primary diagnostic on Subcritical Experiments that are single-shot, high-value events. The system timing on Cygnus will be evaluated as related to the following system elements: HV trigger generator, Marx, pulse forming line and rod pinch diode. Spare trigger generators will also be included in this evaluation.