Eagle and Double-Eagle

Abstract : EAGLE and Double-EAGLE are high-power, Marx-generator- driven, water-dielectric, low-impedance pulse generators. EAGLE was a research test bed. It was built and tested as a prototype module for large accelerators. These large accelerators (called ROULETTE machines) can be built by arranging EAGLE modules into a circle surrounding a central load region. Double-EAGLE (now under construction) is the first example of such a machine. It will use two, horizontally-opposed EAGLE modules to drive a circular vacuum tube feeding dual-MITL's. Design parameters are 0.3 ohms, 7 TW, 0.5 MJ, 75 ns (FWHM power). Double-EAGLE will be a radiation simulator using either imploded-plasma sources or particle beam diodes. Design data for the machine carne from EAGLE experiments which addressed high-power, low-jitter switching in both gas and water, and short-pulse water breakdown. In checking out EAGLE, we measured peak output pulse parameters of 4.6 0.5 TW, 1.6 MA, 275 kJ, 75 ns (FWHM power) into a 1.9 ohm resistive load.