PPT-The Transmission Electron Microscope

Bob Ashley 6 21 2013 Overview Systems of the TEM Illumination Condenser lens system Specimen manipulation stage Imaging system Image formation Magnification Recording system Reading List. . 2. Compound Light Microscope. Used to observe small objects. Magnifies images up to 2000X their size. 3. Different parts of a microscope. copyright cmassengale. SCI.9-12.B-1.2. - [Indicator] - Use appropriate laboratory apparatuses, technology, and techniques safely and accurately when conducting a scientific investigation. Fire Protection Laboratory Methods Day. June 25, 2014. Paul M. Anderson. Graduate Research Assistant. University of Maryland. Department of Fire Protection Engineering. Transmission Electron Microscopy. Different types of microscopes. Objectives. Learners should . be able to:. explain how an electron microscope is different to a light microscope. define the terms magnification and resolution. convert units of measurement used in microscopy. Tutor: Peter Harris. Click on the buttons to move between slides. .. (Make sure you are in “Slide Show” mode). The aims of this course are:. ● . to explain how X-rays are generated in the electron microscope. The Microscope. An understanding of cells and the ultrastructure of cells had to wait until objects so small could be visualized by magnification.. Origin of the Microscope. The first record of the invention of a microscope was by Hans and Zacharias Janssen (Netherlands) in 1590?. Depth of . f. ield: small. Magnification. Uses lenses arranged in series, made of optical material that bends light. All magnification takes place via lenses. Uses . diascopic. illumination (that is, light is transmitted through the specimen). Magnification up to about 1000x.. Care. Parts. Focusing. Always carry with 2 hands. Do not force knobs. Always store covered. Keep objects clear of desk and cords. Only use lens paper for cleaning. Microscope Care. Eyepiece. Body. . What Is Microscope?. It is an instrument which deals with too small organisms that they cannot be seen distinctly with the naked eye. Microscopes provide the observer with enhanced . resolution. (ability to observe two nearby objects as distinct objects), . Introduction to the Microscope.  . What Is Microscope?.  . It is an instrument which deals with too small organisms that they cannot be seen distinctly with the naked eye.. Microscope Types. 1. Compound . By the end of this topic, you will be able to:. Name the parts of the microscope and their functions.. Use the microscope to observe biological specimens. Know the difference between the light microscope and the electron microscope. Rekha. . Unni. Assistant Professor in Chemistry. Christian College . Chengannur. TOOLS FOR MEASURING NANOSTRUCTURE. X-RAY DIFFRACTION (XRD). These analytical techniques reveal information about the crystallographic structure, size, chemical composition and physical properties.. (SEM) Electron Microscopy (SEM) and TEM Scanning electron microscopy is used for inspecting topographies of specimens at very high magnifications using a piece of equipment called the scanning electr Theoretically a microscope is an array of two lenses Need of M icroscopy Living organisms, cells and their organelles which are too small to be seen with the human eye, can only be seen with the aid An electron microscope is a microscope that uses a beam of accelerated electrons as a source o f illumination. As the wavelength of an electron can be up to 100,000 times shorter than that of visibl