PIC simulations of power flow in the Ursa minor linear transformer driver for radiographic applications

摘要

The linear transformer driver (LTD) is a promising technology for building a compact, high-voltage driver for radiographic applications. The 21 cavity Ursa Minor LTD at Sandia National Laboratories is designed to deliver an output voltage of 2.5 MV. This system provides the first opportunity to evaluate the effects of substantial electron flow in a many-cavity driver at the low end of the voltage range needed for radiography. Each cavity has ten bricks (two capacitors and a single switch). Improving the accuracy and reliability of trigger timing for the 210 switches is a major focus of the research effort on this system.