Anisotropic Investigation of Hard X-ray Emission with Flat Anode Tips in APF Plasma Focus Device

In this paper behavior of hard X-ray (HXR) anisotropy and its intensity along the anode bar from APF plasma focus facility (16 kV, 36 μf, and 115 nH) with different anode tip materials investigated experimentally. Magnetic probe signals registered to choose only discharges with high degree of current sheath symmetry. The signals obtained by scintillation detectors by a special arrangement at each angular position show that the employment of higher Z anode insert materials not only increase the intensity of HXR signal, but also result to high degree isotropic emission of HXR. The side on emitted intensity along the anode bar has been studied by moving the detector in the direction of central electrode axis. The results confirm the importance of anode tip material on HXR signal intensity.