PPT-Electron microscope Arnór Freyr Sævarsson

Dmitrii Razinkov Kristín Vilbergsdóttir Selma Rut Sófusdóttir The JEOL JXA8230 electron microprobe Mechanism of the instrument Electrons emitted from the electron source are accelerated at a certain accelerating voltage and collimated through electron lenses When this electron beam hits a specimen Xrays are generated from the specimen By dispersing this Xray using a dispersive element the composition of the specimen can be examined This type of spectrometer is called a wavelength dispersive Xray spectrometer WDS. This model comes with color corrected infinity optical system (CSIS), a movable large working distance condenser, 45 degree inclined trinocular head, high eye-point Plan eyepieces, infinity long working distance PLAN achromatic objectives and infinity long working distance PLAN phase contrast objectives. This microscope offers nine brightfield magnification powers, 40X, 60X, 100X, 150X, 200X, 300X, 400X, 600X & 900X, and six phase contrast settings, 100X, 150X, 200X, 300X, 400X & 600X. Its 30 watt adopt Kohler illumination system was designed for 90-240V wide voltage power supplies. . 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. Compound Light Microscope. The compound light microscope is a common tool in a life science laboratory. A . compound light microscope. is an instrument that magnifies small objects so that they can be seen easily. . VIRTUAL ELECTRON MICROSCOPE. Click Here to Begin to Use the Electron Microscope. If you are viewing this message you must switch to “SLIDE SHOW” mode or use the “F5” key to switch to slide show mode. Microscopy is the technical field using microscopes to view samples and objects that can not be seen without unaided eye (objects that are not within the resolution range of the normal eye). There are three well-known branches of microscopy: optical, electron and scanning probe microscopy.. See Us at M&M 2020 in Milwaukee Electron . Microscopic techniques . (EM). 2020-2021. Electron microscopy (EM) is an electron beam which is focused into a small probe across the surface of . a specimen. . The. . first. . electromagnetic lens was developed in 1926 by Hans Busch. Electron microscope follows the same principle of compound microscope, but uses electrons beam as an illumination source instead of light. . 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. . 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.. 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 Lecture 1. The Microscope . by. Assistant Lecture. Zahraa. Mahmoud Hussain. The Microscope. It is a scientific equipment . that . magnifies . very small . objects that is not visible to the naked eye to an extent where it can be seen clearly.. To explain the advantages of using an Electron Microscope . To be able to carry out Simple Magnification Calculations. . Microscopy. Foundations in Biology. SPEC. Objectives and Success Criteria. Objectives. Compare and contrast different types of microscopes. Describe the preparation of specimens for observation using microscopes.