Anisotropy of neutron and hard X-rays radiation in dena and sahand, two Fillipov type plasma focus devices

Abstract

Plasma focus is powerful sources of neutrons and X-rays. The problem of anisotropy in neutron and X-ray emission have been studied experimentally in two Filippov type plasma focus devices (Dena and Sahand) operated at AEOI (Atomic Energy Organization of Iran) and university of Tabriz respectively. The maximum energy and maximum working voltage of these machines are 90 kJ and 25 kV respectively. Substantial effort has been dedicated to the study of the anisotropy in the neutron and hard x-ray radiation by using TLD and Lexan polycarbonate plastic track detector. The experiments have shown that the hard x- rays emitted from the pinched plasma are anisotropic and exhibits a maximum in one angle as found by angular distribution studies. The emissions of neutron particles are also anisotropic which can be attributed to two different neutron production mechanisms. In the other word, the validity of the fusion due to the beam-target reaction has also been confirmed.