Experiments with the tiny nanosecond output device on the S-300 high-current generator

• Published in: Вопросы атомной науки и техники
• Date: 2003
• Main Authors: Kingsep, A.S., Bakshaev, Yu.L., Bartov, A.V., Blinov, P.I., Chernenko, A.S., Chikin, R.V., Chukbar, K.V., Danko, S.A., Dubas, L.G., Kalinin, Yu.G., Kovalenko, I.V., Lobanov, A.I., Mizhiritsky, V.I., Shchagin, V.A., Smirnov, V.P.
• Format: Article
• Language: English
• Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2003
• Subjects: Релятивистская плазменная электроника
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/111002
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Experiments with the tiny nanosecond output device on the S-300 high-current generator / A.S. Kingsep, Yu.L. Bakshaev, A.V. Bartov, P.I. Blinov, A.S. Chernenko, R.V. Chikin, K.V. Chukbar, S.A. Danko, L.G. Dubas, Yu.G. Kalinin, I.V. Kovalenko, A.I. Lobanov, V.I. Mizhiritsky, V.A. Shchagin, V.P. Smirnov // Вопросы атомной науки и техники. — 2003. — № 4. — С. 26-28. — Бібліогр.: 4 назв. — англ.

On the S-300 pulsed power generator (4.5 MA, 70 ns, 0.15 Ohm), within the frames of ICF program based on fast high-current Z-pinches, experiments are being carried out studying promising schemes of output units. In particular, a device similar to the plasma flow switch is being investigated aimed at sharpening the pulse. In the experiments with such a device, by means of variation the geometry of the inner electrode of a co-axial, as well as the acceleration of a cascade of plasma “washers”, the switching of the current up to 750 kA has been obtained, with the rise time ~ 5…7 ns and subsequent decrease being in accordance with that of the net current (~ 100 ns). Thereby the opportunity of switching of much more amount of energy onto the load has been demonstrated compared to our preliminary experiments (2.5 MA/2.5 ns). Soft X-ray radiation from the cavity was recorded by means of vacuum diodes with a nickel cathode and especially selected filters. The radiative temperature of the cavity walls estimated from the ratio of diode signals was close to 50 eV.