Exploring the resonant vibrational excitation levels of hydrogen at border angles [0º-180º] by observing the differential cross sections

Abstract

In this research, the experience of exploring the vibrant levels of vibration for hydrogen, through the monitoring of differential sections, was used for the modified cross-brochield. The experiment begins by extracting electrons from hot tungsten directly[u1] cathode. The electron beam is selected by monochrome and then pointed into the interaction region . the same time sends a beam of gas to be vertical at 90◦ with the previous electrons beam. As the experiment includes the use a double Trochoidal electron monochromatic (TEM [ 2u ] ) device for the analysis of the scattered electron multiplier for the detecting of the scattered electrons. In this experiment, the objective was obtaining the DCS at border angles of 0◦ and 180 The signal detected is a sum of inelastically scattered electrons at 0o and 180o, within the same solid angles, and at the given residual energy. The experiment shows a very efficient (100%) collection of the backward scattered electrons. Through the results we note that when measuring vibration excitement of hydrogen gas long-term deficiency for angular distribution of electrons as well as lack of experience differential cross sections (DCS [ 4u ] [ 3u ] ) .