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S. A. Goldstein - IEEE Xplore Author Profile

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The PBFA I accelerator has been tested and is operational at its full power rating of 30 TW. The PBFA I experiments demonstrated that the multi-modular approach to superpower generators is viable. The modular outputs can be combined in parallel or series-parallel combinations of the magnetically insulated transmission lines to power single, ion-beam diodes or imploding plasma sources. The coupling...Show More
The first Particle Beam Fusion Accelerator (PBFA-I) has recently completed its operational series of tests. It provided 30 TW into 36 power flow lines terminated in electron beam loads at the accelerator's center. The outputs were 2 MV at 15 MA for a 40 ns pulse which provided 1 MJ of output energy. During the accelerator develcpament, several ways of modifying and reconnecting this modular, few M...Show More
Recent theoretical and experimental studies of electron deposition in thin foils and targets are discussed with emphasis on enhancement of collisional deposition resulting from macroscopic self-beam and diode fields. The deposited power/mass ≡ PM was inferred to be PM ≅ 1-2 × 1012 watts/gm for experiments on Hydra (1 MeV, 300 KA, 100 nsec) and PM ≅ 4-16 × 1012 watts/gm on Proto I (1.5 MeV, 250 KA/...Show More
Calculations have shown that efficiently generated and focused ion beams could have significant advantages over electron beams in achieving ignition of inertially-confined thermonuclear fuel. Efficient ion beam generation implies use of a good ion source and suppression of net electron current. Net electron flow can be reduced by allowing electrons to reflex through a highly transparent anode or b...Show More
Proto-I is a 3 MV, 800 kA, 24 ns electron beam accelerator that is under development at Sandia Laboratories. It represents an initial effort to develop a scalable technology that is applicable to accelerators for electron beam driven, inertial confinement fusion studies. Energy is supplied to each of the two diodes from six oil-dielectric Blumlein transmission lines (PFL) operating in parallel. A ...Show More
The use of electrical, optical, x-ray, and particle diagnostics to characterize the production of anode plasma and to monitor its influence on beam generation and focusing are reviewed. Studies using the Nereus accelerator show that after cathode turn-on, deposition of several kJ/gm on the anode is necessary before ions from hydrocarbons, adsorbed gases, and heavier metallic species are detected. ...Show More