Transmission line and electromagnetic models of the Mykonos-2 accelerator

Madrid, E. A.; Miller, Carol; Rose, D. V.; Welch, D. R.; Clark, Robert E.; Mostrom, C. B.; Stygar, W. A.; Savage, M. E.; Hinshelwood, D.D.; LeChien, K. R.

doi:10.1109/ppc.2011.6191536

Cited by 2 publications

(1 citation statement)

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“…The prime power source of such a machine may consist of a system of linear transformer drivers (LTDs) [7][8][9][10][11][12][13][14][15][16][17][18] fast Marx generators (FMGs) [7,9,[19][20][21][22] or impedance-matched Marx generators (IMGs) [18,23,24]. The pulsed power community has been developing LTD technology for 20 years on various single-cavity experiments [16,[25][26][27][28][29][30][31][32][33][34][35][36][37], multicavity (single "module") experiments [14,27,32,35,[38][39][40][41][42][43][44] and a few multimodule experiments [11,14]. The work presented here describes the design and performance of the first two meter...…”

Section: Introductionmentioning

confidence: 99%

100 GW linear transformer driver cavity: Design, simulations, and performance

Douglass¹,

Hutsel²,

Leckbee³

et al. 2018

Phys. Rev. Accel. Beams

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Herein we present details of the design, simulation, and performance of a 100-GW linear transformer driver (LTD) cavity at Sandia National Laboratories. The cavity consists of 20 "bricks." Each brick is comprised of two 80 nF, 100 kV capacitors connected electrically in series with a custom, 200 kV, threeelectrode, field-distortion gas switch. The brick capacitors are bipolar charged to AE100 kV for a total switch voltage of 200 kV. Typical brick circuit parameters are 40 nF capacitance (two 80 nF capacitors in series) and 160 nH inductance. The switch electrodes are fabricated from a WCu alloy and are operated with breathable air. Over the course of 6,556 shots the cavity generated a peak electrical current and power of 1.03 MA (AE1.8%) and 106 GW (AE3.1%). Experimental results are consistent (to within uncertainties) with circuit simulations for normal operation, and expected failure modes including prefire and latefire events. New features of this development that are reported here in detail include: (1) 100 ns, 1 MA, 100-GW output from a 2.2 m diameter LTD into a 0.1 Ω load, (2) high-impedance solid charging resistors that are optimized for this application, and (3) evaluation of maintenance-free trigger circuits using capacitive coupling and inductive isolation.

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