For nuclear weapons applications, dense plasma focus devices can be used as an external neutron source. Other applications include simulation of nuclear explosions and a short and intense neutron source a good choice for non-contact discovery or examination of nuclear materials (uranium, plutonium). Dense plasma focus (DPF) is often a machine that produces, through electromagnetic acceleration and data compresion, a short-lived plasma that’s hot and dense ample to cause nuclear fusion plus the emission of X-rays along with neutrons.