The paper describes a highvoltage facility based on a pulsed current generator (PCG) and a load as a plasma focus chamber (PF) through which flows a periodic discharge with a current amplitude of ~ 1 MA and a period of ~ 10 μs. The facility is used as a source of pulsed neutron radiation and provides for neutrons with an energy of 2.5 MeV an output level of (5÷8)∙109 neutrons per pulse, for neutrons with an energy of 14 MeV an output level of (5÷8)∙10 11 neutrons per pulse; neutron pulse duration is 30÷60 ns.The PF chamber consists of two coaxial electrodes separated by an insulator and it is a sealed gasfilled device. The inter electrode space of the PF chamber is filled with deuterium or a mixture of deuterium and tritium. When energy is transferred from the PCG to the PF chamber, a discharge develops in it near the insulator surface and a plasmacurrent sheath is formed, which further accelerates along the electrodes and contracts on the chamber axis into a pinch. PF chambers are a point sources of nanosecond pulsed neutron radiation.The facility features and operation regimes with the PF chamber are considered. The main characteristics of the PCG for several configurations were determined, the inductance of the facility was 18 nH, and the maximum amplitude of the discharge current was 1250 kA. The results of the PF chambers various configurations operation are presented. The dependences of the neutron yield and the lifetime of the chambers on the total capacitance of the PCG, which varies in the range from 108 to 144 μF, are shown.
