Electron Microscope Research Papers Samples For Students

Introduction

The microscope is derived from two Greek words, mikros and skopeo. Mikros means small while skopeo means “look at.” Thus, the two words form the word mikroskopeo that refers to looking or observing small objects. Since the beginning of scientific developments, there has been an interest to look at the smaller details of the world around us. Biologists have taken the lead in the quest to uncover such small details through their desire to examine cells, viruses, bacteria, and colloidal particles. Material scientists have wanted to observe the limitations and inhomogeneities in metals, ceramics, and crystals. Geologists have also ...

Definition

Magnification refers to the process of making an object larger or smaller in size. It can be said basically to be the altering of the size the object. The magnified object is referred to as an image. Therefore the magnified object is shall only appear larger or smaller in size with the physical size maintained. This change is calculated and given in a numerical number referred to as the magnification.

Areas where magnification is used

Magnification is used in many fields of study and real life situations. In biology, small objects are magnified so as to be viewed properly. This involves the use of microscopes. ...

Scanning electron microscope uses a beam of electrons to form images that reveal the topography and composition of a body. Before being focused on the object, incident electrons have high amounts of kinetic energy. Incident electrons interact with the surface of the specimen, and this interaction is determined by the rate of the acceleration of the incident electrons. Energetic electrons are usually released from the surface of the sample when the incident electrons come into contact with it. The interaction results in the formation of scatter patterns that interpret into the shape, composition, size, and texture of the specimen. ...