The Voitenko compressor is a shaped charge adapted from its original purpose of piercing thick steel armour to the task of accelerating shock waves. It was proposed by a Russian scientist in 1964. It slightly resembles a wind tunnel.
The Voitenko compressor initially separates a test gas from a shaped charge with a malleable steel plate. When the shaped charge detonates, most of its energy is focused on the steel plate, driving it forward and pushing the test gas ahead of it. Ames translated this idea into a self-destroying shock tube. A 30-kilogram (66 lb) shaped charge accelerated the gas in a 3-cm glass-walled tube 2 meters in length. The velocity of the resulting shock wave was a phenomenal 67 kilometres per second (220,000 ft/s). The apparatus exposed to the detonation was, of course, completely destroyed, but not before useful data were extracted. In a typical Voitenko compressor, a shaped charge accelerates hydrogen gas which in turn accelerates a thin disk up to about 40 km/s. A slight modification to the Voitenko compressor concept is a super-compressed detonation, a device that uses a compressible liquid or solid fuel in the steel compression chamber instead of a traditional gas mixture. A further extension of this technology is the explosive diamond anvil cell, utilizing multiple opposed shaped charge jets projected at a single steel encapsulated fuel, such as hydrogen. The fuels used in these devices, along with the secondary combustion reactions and long blast impulse, produce similar conditions to those encountered in fuel-air and thermobaric explosives.
This method of detonation produces over 100 keV (10^9K) of energy, suitable not only for nuclear fusion, but other higher order quantum reactions as well. The UTIAS explosive-driven-implosion facility was used to produce stable, centered and focused hemispherical implosions to generate neutrons from D-D reactions. The simplest and most direct method proved to be in a predetonated stoichiometric mixture of deuterium-oxygen. The other successful method was using a miniature Voitenko-type compressor, where a plane diaphragm was driven by the implosion wave into a secondary small spherical cavity that contained pure deuterium gas at one atmosphere. In brief, PETN solid explosive is used to form a hemispherical shell (3 mm to 6 mm thick) in a 20-cm diameter hemispherical cavity milled in a massive steel chamber. The remaining volume is filled with a stoichiometric mixture of (H2 or D2 and O2). This mixture is detonated by a very short thin exploding wire located at the geometric center. The arrival of the detonation wave at the spherical surface instantly and simultaneously fires the explosive liner. The detonation wave in the explosive liner hits the metal cavity, reflects, and implodes on the preheated burnt gases, focuses at the center of the hemisphere (50 microseconds after the initiation of the exploding wire) and reflects, leaving behind a very small pocket (1 mm) of extremely high-temperature, high-pressure and high density plasma.
- Войтенко (Voitenko), А.Е. (1964) "Получение газовых струй большой скорости" (Obtaining high speed gas jets), Доклады Академии Наук СССР (Reports of the Academy of Sciences of the USSR), 158 : 1278-1280.
- Войтенко, А.Е. (1966) "Ускорение газа при его сжатии в условиях остроугольной геометрии" (Acceleration of a gas during its compression in conditions of acute angle geometry), Прикладная Механика и Техническая Физика (Applied Mechanics and Technical Physics), no. 4, 112-116.
- Войтенко, А.Е. ; Демчук, А.Ф. ; Куликов, Б.И. (Voitenko, A.E. ; Demchuk, A.F. ; Kulikov, B.I.) (1970) "Взрывная камера" (Explosive chamber), Приборы и Техника Эксперимента (Instruments and Experimental Techniques), no. 1, pp. 250 ff.
- Войтенко, А.Е.; Маточкин, Е.П. ; Федулов, А.Ф. (Voitenko, A.E. ; Matochkin, E.P. ; Fedulov, A.F.) (1970) "Взрывная лампа" (Explosive tube), Приборы и Техника Эксперимента (Instruments and Experimental Techniques), no. 2, pp. 201-203.
- Войтенко, А.Е. ; Любимова, М.А. ; Соболев, О.П. ; Сынах, B.C. (Voitenko, A.E. ; Lyubimova, M.A. ; Sobolev, O.P. ; Sinakh, V.S.) (1970) "Градиентное ускорение ударной волны и возможные применения этого эффекта" (Gradient acceleration of a shock wave and the possible applications of this effect), Институт Ядерной Физики Сибирское отделение Академии Наук СССР (Institute of Nuclear Physics, Siberian branch of the Academy of Sciences of the U.S.S.R.), no. 14-70.
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