Physics - Sciene

         A computational investigation has been carried out in some properties of Gabor lens with the aid of personal computer under the absence of space-charge effects.  This work has been concentrated on designing two concentric, electrostatic and magnetic lenses.  Electrostatic lens is a two-electrode immersion lens whose electrodes are cylindrical in shape separated by a separation distance.  Magnetic lens is a number of turns of the current-carrying coil of a hypothetical rectangular field of length L.The variable parameters of the electrostatic lens are th

The aim of this project is to measure the uranium and radon gas concentrations in soil and water samples taken from regions situated in Baghdad, Karbala and Basrah, and to limit the level of contamination with radionuclides for these regions during the 2003 war.The first part contains the determination of uranium concentration in soil and water samples using CR-39 Track detector.

The present work aims to design an optical system for infrared (IR) homing head. The homing head of interest works through ()mµ53 −atmospheric window, so it must have high quality characteristics. The