A Gas Generator Based on Porous Titanium in the Composition of Sealed-Off Plasma Focus Chambers

The use of a gas absorber based on porous titanium as a gas generator as part of a sealed electrovacuum device, that is, a plasma focus chamber, is considered. The latter are used as pulsed sources of nanosecond neutrons as part of neutron generators. To generate neutrons, the inner volume of the chambers is filled with deuterium or a deuterium–tritium mixture. The physical foundations of the use of a gas generator providing the operation of plasma focus chambers when filled with deuterium or a deuterium-tritium mixture in the pressure range of 1–30 Torr with a chamber volume of 10 to 1000 cm 3 are considered. The gas generator makes it possible to carry out up to several thousand working cycles of gas evolution and absorption in the volume of the chamber with a gas evolution time of the order of several minutes. The safety of using sealed plasma focus chambers with deuterium–tritium filling is provided by the fact that radioactive tritium is in titanium in a bound state and is released into the chamber volume when the porous titanium saturated with a working gas is heated only for the duration of its operation in the neutron generator.