Showing papers on "Marx generator published in 1973"
TL;DR: The Hydra electron beam generator as mentioned in this paper was designed to simultaneously produce two 1 MV, 0.5 MA, 80 nanosecond electron beams that could be combined to form a single beam.
Abstract: The Hydra electron beam generator was designed to simrultaneously produce two 1 MV, 0.5 MA, 80 nanosecond electron beams that could be combined to form a single beam. The machine, undergoing final developmental tests, has generated a 0.5 MA, 1 MV peak electron beam from each line. This accelerator consists of a low-inductance Marx generator, two water-dielectric pulse-forming (PF) and impedance-transforming transmission lines and two low-inductance, high-current diodes. A description of the generator is presented along with developmental studies and initial testing data. The Hydra machine is based on accelerator principles described in the literature. The Marx generator is submerged in transformer oil and separated from the transmission line water by a lucite interface. The Marx charges each coaxial PF transmission line which is deionized water insulated to 3 MV in 0.9 microseconds. At peak voltage, a 3 MV SF6 spark gap electrically connects the 4 ohm PF line to the impedance transforming (4 ohm to 2 ohm) transmission line. The pulse is transmitted through this line to the single radial insulator diode. A 30 kilojoule, 100 nanosecond duration electron beam is formed by a cold cathode in each diode.
35 citations
TL;DR: A flashlamp pumped laser system that utilizes a coaxial Marx-Bank driver circuit is described, which minimizes total inductance so that short duration, high energy pulses efficient for dye laser excitation are obtained.
Abstract: A flashlamp pumped laser system that utilizes a coaxial Marx-Bank driver circuit is described. The property of the Marx-Bank circuit, which is to charge storage capacitors in parallel but discharge them in series connection, affords the practical advantage that high applied voltages and flashlamp input energies may be attained with a relatively low dc charging voltage. The use of a coaxial flashlamp and circuit configuration minimizes total inductance so that short duration, high energy pulses efficient for dye laser excitation are obtained.
13 citations
TL;DR: In this article, the authors describe the construction of a streamer chamber of size 60 × 60 × 12.5 cm3 using a Marx generator, which is used to charge up an intermediate capacitor.
2 citations
TL;DR: In this paper, a simple pulse shaping network is described, consisting of a capacitor connected in series with a sparkgap, and a Marx generator feeds the system, which generates a pulse of 450 kV with 1 ns risetime and 7 ns fwhm on a load of 80 Ω.
1 citations
01 Jan 1973
TL;DR: In this paper, experiments for the evaluation of a cold cathode electron gun were described, and small signal gains of 6.3 percent/cm were measured, which were obtained with less energy deposition in the laser gas with the larger pre-ionizing currents from cold cathodes.
Abstract: Experiments for the evaluation of a cold cathode electron gun are described. Different anode and cathode materials and configurations were tried. Small signal gains of 6.3 percent/cm were measured. It was found that the same small signal gains could be obtained with less energy deposition in the laser gas with the larger pre-ionizing currents from a cold cathode. Long-duration pulses were observed that were limited only by the electrical energy available in the Marx bank. (auth)
1 citations
TL;DR: In this paper, it is suggested that it might be feasible to trigger the expansion mechanism immediately a charged particle has passed through a xenon chamber, and then to supply the necessary energy for bubble formation, by causing avalanche multiplication at the moment of superheat with a pulsed electric field (derived from a Marx generator).
1 citations