By Frank B. A. Früngel (Auth.)
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Additional resources for Capacitor Discharges–Magnetohydrodynamics–X-rays–Ultrasonics
W. von Tersch and A. W. Swago, Prentice-Hall, 1953. b. Single Capacitor, Nonlinear RC Circuit  By conventional graphical methods any circuit containing one capacitor, any number of current sources, voltage sources, or linear and nonlinear resistors can be resolved into the circuit of Fig. A6b-1. A completely general system would require the resistance R to be a function of / (or of the voltage eR), and the capacitance C to be dependent upon the terminal voltage ec (or the charge q on the capacitor).
As long as a resistancepoor rectifier with a choke coil will be cheaper than a high-potential power source that has been derated for the output increase necessary for resistor operation, a rectifier will be of advantage. 5 μΐ = 5 x 10- 7 farads as discharge capacitor shall be charged and discharged at a sequence frequency of/ = 10,000 per second and a potential of U = 10 kv. ) For this purpose there is necessary a charging energy of: AL = i2CU2 = \ x 5 x 10" 7 x 108 = 25 watt-sec and the charge is Q = C x U = 5 x 10- 7 x 104 - 5 x 10~3 amp-sec The average or mean current becomes I =f x Q = 104 x 5 x 10- 3 = 50 amp 9.
6-1 ohm spark resistance. The maximum apparent output is therefore 60 megavolt-amp. The effective output can be determined only from oscillographic traces of current and voltage and multiplication of both curves. Such procedure results in about 30-40 megawatts. For large peak currents at high voltage and for the construction of discharge devices having the lowest possible inductance, aluminum-foil-wound paper, or polystyrol-foil, capacitors have gained widespread acceptance, The latter are mostly paraffin impregnated under vacuum.
Capacitor Discharges–Magnetohydrodynamics–X-rays–Ultrasonics by Frank B. A. Früngel (Auth.)