DARHT Axis-I Diode Simulations II: Geometric Scaling
Carl Ekdahl
TL;DR
This paper develops scaling laws through simulations to guide the adjustment of beam current in the DARHT Axis-I diode by modifying cathode size, aiding in radiography dose control.
Contribution
It introduces new simulation-based scaling laws for changing the Axis-1 beam current via cathode size modifications.
Findings
Established relationships between cathode size and beam current.
Provided design tools for dose adjustment in radiography.
Enhanced understanding of diode geometry effects.
Abstract
The dual-axis radiography for hydrodynamic testing (DARHT) facility at Los Alamos National Laboratory uses two electron linear-induction accelerators (LIA) to produce the source spots for perpendicular flash radiographs of a dynamic experiment.Manipulating the beam current is a means for adjusting the dose, and one way to do this is to change the size of the cathode. This article describes simulations undertaken to develop scaling laws for use as design tools in changing the Axis-1 beam current by changing the cathode size.
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Taxonomy
TopicsRadio Frequency Integrated Circuit Design · Semiconductor Quantum Structures and Devices