Discharge can be created by applying a potential difference between two electrodes in a gaseous medium. Electric field generated between these two electrodes (anode and cathode) causes ionization of neutral gas particles and creates a conducting path. This phenomenon is called breakdown of the gaseous medium [1]. Electric field lines between the anode and the cathode depend on the geometry of the electrodes.
Urine assay is the preferred method for monitoring accidental or chronic internal exposure of uranium in human body. In the present study, two typical methods have been used for determination of uranium in human urine for occupational mining workers and residents of selected regions in Iraq. The main technique is kinetic phosphorescence analysis (KPA).
This thesis was including study the effect of different concentration (X=0.1,0.2,0.3,and 0.4), thickness, t (200-500)nm ,and substrate temperature ,T (300-393)K on the structural and electrical properties for CdXSe1-Xs thin films ,which prepared by thermal evaporation on glass substrate under vacuum of (2 2 ×10 -5 mbar), and studying the mechanism of transition for the d.c conductivity and a.c conductivity.
