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Topic: Electron microscope

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Electron microscopy

Scanning electron microscope

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	Electron microscope - Wikipedia, the free encyclopedia
		The electron microscope is a type of microscope, which differs from a normal microscope due to it's immense magnification or resolving power of small objects or details through the use of electrons.
		The first practical electron microscope was built at the University of Toronto in 1938, by Eli Franklin Burton and students Cecil Hall, James Hillier and Albert Prebus.
		Unlike the TEM, where electrons are detected by beam transmission, the Scanning Electron Microscope (SEM) produces images by detecting secondary electrons which are emitted from the surface due to excitation by the primary electron beam.
	en.wikipedia.org /wiki/Electron_microscope (1806 words)

	Electron Microscope - MSN Encarta
		Electron microscopes are able to obtain much higher powers of magnification than standard visible light microscopes because electrons have much shorter wavelengths associated with them than light waves.
		The vessels that house electron microscopes must be evacuated to very high vacuum to prevent the scattering of the electrons off of air molecules.
		Electron microscopes have given scientific and lay media remarkable pictures, such as the “faces” of insects, the shapes of microscopic organisms, and the surface structure of molecules of new, high-tech alloys and other substances.
	encarta.msn.com /encyclopedia_761562049/Electron_Microscope.html (818 words)

	Scanning electron microscope - Wikipedia, the free encyclopedia
		The scanning electron microscope (SEM) is a type of electron microscope capable of producing high resolution images of a sample surface.
		The electron beam, which typically has an energy ranging from a few hundred eV to 50 keV, is focused by one or two condenser lenses into a beam with a very fine focal spot sized 1 nm to 5 nm.
		The high-energy electrons from the SEM beam will inject charge carriers into the semiconductor; that is, the beam electrons will loose energy by promoting electrons from the valence band into the conduction band, leaving behind holes.
	en.wikipedia.org /wiki/Scanning_electron_microscope (1180 words)

	What are Electron Microscopes? (Site not responding. Last check: 2007-10-22)
		Electron Microscopes are scientific instruments that use a beam of highly energetic electrons to examine objects on a very fine scale.
		Electron Microscopes were developed due to the limitations of Light Microscopes which are limited by the physics of light to 500x or 1000x magnification and a resolution of 0.2 micrometers.
		The Transmission Electron Microscope (TEM) was the first type of Electron Microscope to be developed and is patterned exactly on the Light Transmission Microscope except that a focused beam of electrons is used instead of light to "see through" the specimen.
	www.unl.edu /CMRAcfem/em.htm (428 words)

	Highbeam Encyclopedia - Search Results for electron microscope (Site not responding. Last check: 2007-10-22)
		microscope MICROSCOPE [microscope] optical instrument used to increase the apparent size of an object.
		By applying the discovery that electron waves are 100,000 times shorter than those of light, Ruska built a microscope that used a beam of electrons to produce a greatly magnified image.
		Viruses usually are too small (100-2,000 Angstrom units) to be seen with the light microscope and thus must be studied by electron microscopes.
	www.encyclopedia.com /articles/04033.html (695 words)

	Electron Microscope
		This instrument was given its name because a beam of electrons are passed through the specimen rather than a beam of light.
		In an electron gun, the electron beam is produced in the hot tungsten filament.
		The strength of electrons passing through the lens coil in the microscope cylinder determines the magnification.
	sln.fi.edu /qa98/biology/journals/part8.html (344 words)

	Lesson Plans -- Virtual Electron Microscope -- (6-8, Microscopic World) (Site not responding. Last check: 2007-10-22)
		The microscope is able to create a picture of the specimen based on the way the electrons bounce off it.
		Compare the use of the compound microscope to the electron microscope.
		In addition to SEMs, there are other types of microscopes that are bringing us closer than ever to a previously invisible world: transmission electron microscopes, acoustic microscopes, and scanning tunneling microscopes, which enable scientists to see individual atoms.
	school.discovery.com /lessonplans/activities/electronmicroscope (1078 words)

	[No title]
		The Electron Microscope Unit is equipped with state of the art scanning and transmission electron microscopes.
		The scanning electron microscope includes a cryo-stage that permits the imaging of fast frozen materials that allows an investigator to obtain images of the surface of biological and physical materials unaltered by preparative procedures.
		All of the microscopes of the Electron Microscope Unit are in the process of being outfitted with digital cameras eliminating the need for darkroom work and permitting any collaborating investigator to use images generated to prepare figures for manuscripts and grants.
	emu.arsusda.gov (389 words)

	MicroAngela's Electron Microscope Image Gallery
		Come explore familiar and unexpected views of the microscopic world with these colorized images from electron microscopes at the University of Hawaii.
		Microscopic organisms that are parasites, and other cells.
		Biological Electron Microscope Facility, (BEMF), part of the Pacific Biomedical Research Center at the University of Hawaii at Manoa.
	www.pbrc.hawaii.edu /bemf/microangela (280 words)

	Electron Microscope Facility at Clemson University
		Located 3.5 miles North of I 85 on SC187, the Clemson University Electron Microscope Facility is equipped with state of the art equipment which represents an outlay in excess of $3.5 million over the last three years.
		The new internal rates for the Electron Microscope Facility for the new fiscal year are:
		Electron Microscope Facility -- Clemson Research Park -- Clemson, SC 29634 -- Email: joanh@clemson.edu or ecash@clemson.edu.
	www.clemson.edu /electronmicroscope (239 words)

	Electron microscopes
		Transmission Electron Microscopy (TEM) methods can be used to measure the mechanical, electrical and field emission properties of individual carbon nanotubes.
		Electron Beam Lithography (EBL) is a special technique for making the very fine patterns that are needed by the electronics sector for integrated circuits.
		The Quanta HV SEM is a high-performance, entry-level scanning electron microscope with a tungsten electron source.
	www.azonano.com /SearchResults.asp?AppKeyWord=Electron+microscopes (557 words)

	Electron Microscope
		The electron microscope is a microscope that can magnify very small details with high resolving power due to the use of electrons rather than light to scatter off material, magnifying at levels up to 500,000 times.
		In the process, High voltage electron beams from a cathode are focused by magnetic lenses on to the specimen.
		Due the sensitive nature of this equipment, the Research Center maintains it, along with the confocal microscope in the hospital basement.
	www.shcc.org /electron.htm (237 words)

	Electron microscope definition - Medical Dictionary definitions of popular medical terms
		A microscope in which an electron beam replaces light to form the image.
		EM has its pluses (greater magnification and resolution than optical microscopes) and minuses (you are not really "seeing" objects, but rather you are looking at their electron densities, and meaningless artifacts may abound).
		EM was invented by a team led by Vladimir Zworykin, an engineer at the RCA Laboratory in Camden, New Jersey.
	www.medterms.com /script/main/art.asp?articlekey=3216 (229 words)

	Electron Microscope Laboratory (Site not responding. Last check: 2007-10-22)
		The Department has a modern electron microscope facility that is used by students,faculty and staff.
		It is equipped with an Hitachi S570 scanning electron microscope and an Hitachi H600 transmission electron microscope.
		Both microscopes are equipped with EDS systems for elemental analysis.
	www.uwm.edu /Dept/Biology/Docs/electronmicro.html (92 words)

	Scanning Electron Microscope (Site not responding. Last check: 2007-10-22)
		An electron microscope uses a focused beam of electrons to obtain much higher magnification than is possible on a conventional light microscopes (the image above has only 100x magnification, which is well within the reach of light microscopy, however, magnification of thousands of times is possible).
		A scanning electron microscope is similar to a light microscope being used in reflection.
		The major difference is that instead of imaging the entire specimen at once, the electron beam is scanned back and forth over the specimen, imaging only one point at a time (much like how a television works--there is only one electron beam, but it scans every spot on the screen).
	people.ccmr.cornell.edu /~mseugrad/micro/scane.html (273 words)

	Transmission Electron Microscope \| Boston College Physics (Site not responding. Last check: 2007-10-22)
		It is capable of an ultimate point-to-point resolution of 0.19 nm, with the ability to image lattice fringes at 0.14 nm resolution.
		It is a multipupose ultrahigh resolution analytical electron microscope with a wide range of capabilities such as high resolution image observation, nanoarea X-ray analysis, versatile analysis by convergent-beam electron diffraction, and analysis of the atomic structure and/or bonding state of atoms.
		With the addition of Energy dispersive X-ray spectrometer (EDS) and Parellel electron energy loss spectrometer (PEELS), the field-emission TEM can also be used as an elemental analysis tool, capable of identifying the elements in areas less than 2 nm in diameter.
	www.physics.bc.edu /Deptsite/facilities/tem.shtml (204 words)

	Electron Microscope Lab at UC Berkeley (Site not responding. Last check: 2007-10-22)
		The Electron Microscope Laboratory (EML) is located in 26 Giannini Hall in the North basement.
		The EML is an instruction and research unit of the College of Letters and Sciences, providing EM services to the Berkeley campus and the academic community at large.
		All are available to anyone with an interest in electron microscopy: graduate and undergraduate students, post-doctoral researchers, faculty, staff and non-UC users.
	biology.berkeley.edu /EML (573 words)

	Electron Microscope Center (Mississippi State University)
		We're a teaching and research facility fully equipped for conventional transmission and scanning electron microscopy and confocal laser scanning microscopy.
		The scanning electron microscope provides high resolution images of the surfaces of biological and non-biological specimens.
		The transmission electron microscope reveals the ultrastructure of cells that make up plant and animal tissues.
	www.msstate.edu /Dept/EMC (345 words)

	Transmission Electron Microscope
		Pam Champness - Electron Diffraction in the Transmission Electron Microscope
		Electron Tomography: Three-Dimensional Imaging With the Transmission Electron Microscope
		R.L. Griffin - Using the Transmission Electron Microscope in the Biological Sciences
	www.shopping.com /xGS-Transmission_Electron_Microscope (216 words)

	Electron Microscope (SEM,TEM) facility @ UofA
		electron microscope electron microscope electron microscope electron microscope sem sem sem sem tem tem tem
		The University of Alberta Faculty of Medicine and Oral Health Sciences administers the Electron Microscope Facility housed in the Dentistry/Pharmacy Building.
		The Facility comprises a Hitachi S-2500 Scanning Electron Microscope (installed 1991), and a Hitachi Transmission Electron Microscope H-7000 (installed 1988).
	www.ualberta.ca /~mingchen (364 words)

	GUMC Cell Biology Electron Microscope (Site not responding. Last check: 2007-10-22)
		Welcome to the Electron Microscopy Core Facility in the Cell Biology Dept at Georgetown University - a multi-user, interdepartmental resource that enables local researchers to implement the technique of electron microscopy in their research programs.
		The facility features a Hitachi Model Number H-7600 high-resolution transmission electron microscope, a state-of-the-art system capable of digital imaging and designed for ease of use with minimal operator training.
		For more information on Electron Microscopy techniques or other related topics be sure to visit other sites dedicated to electron microscopy.
	www.georgetown.edu /departments/cellbiology/confocal/Electron.html (120 words)

	Dennis Kunkel Microscopy, Inc. Scientific Stock Photography
		The science image library holds over 1,500 light microscopy images and electron microscopy images (colorized and fl & white) taken by Dennis Kunkel Ph.D. In addition to the images on this site, our archives contain thousands of fl & white electron micrographs for which colorizations may be arranged.
		Dennis Kunkel Microscopy, Inc. is a scientific stock photography agency (science stock photography) featuring biology, medical and biomedical science stock photographs / pictures taken with light microscopes (LM) and electron microscopes (transmission electron microscope - TEM; scanning electron microscope - SEM).
		Microscopy photographs (science images, electron microscope images) are available for licensed use in editorial and commercial formats including: advertising, magazines, textbooks, television, brochures, documentaries, movies, museum exhibitions, science books, trade books, children's books, posters, products, reports, trade shows, video, CD-ROMs and other commercial projects (science stock photography).
	www.denniskunkel.com (225 words)

	Environmental Scanning Electron Microscope
		A versatile microscope with 2 nm ultimate resolution.
		Energy-Dispersive Spectroscopy Using the Environmental Scanning Electron Microscope.
		Nondestructive Imaging of Pin-Mounted Museum Specimens of Insects Using the Environmental Scanning Electron Microscope (ESEM).
	www.itg.uiuc.edu /ms/equipment/microscopes/esem/index.htm (321 words)

	Customized Scanning Electron Microscope Training
		Offering general and customized electron microscopy courses including Industrial Problem Solving with Scanning Electron Microscopy a custom-designed course at your facility and Fundamentals of Asbestos Analysis by TEM.
		Short courses on image analysis, electron diffraction, energy dispersive spectroscopy, TEM/SEM microscope use.
		The most complete listing of microscopy and microanalysis products on the web including electron microscopes, EDX, surface analysis, light microscopes, scanning probe microscopes, digital cameras, software, and more.
	www.mwrn.com /news/training/electron_microscope.aspx (91 words)

	Microscopes and Microscopy on the Web (Site not responding. Last check: 2007-10-22)
		For electron microscope, scanning probe microscope, confocal microscope, and and light microscope information on the web, visit the new www.microscopy.info web site.
		From stereo microscopes to live cell confocal to high resolution electron microscopes, our Buyers Guide includes product information and direct links to the to vendor web sites.
		Your guide to microscopes and microanalysis resources on the web.
	www.mwrn.com /guide/electron_microscopy/microscope.htm (141 words)

	Electron Microscope Download Page (Site not responding. Last check: 2007-10-22)
		Electron Microscope III Help in DOC format, Word 97 and newer.
		If you have created a skin file for your team and want it hosted here, send me an email with the skin attached and it will be added to this list.
		Electron Microscope III Extreme Overclocking (EOC) Team skin
	home.comcast.net /~wxdude1/emsite/download.html (619 words)

	Definition of electron microscope - NCI Dictionary of Cancer Terms
		Definition of electron microscope - NCI Dictionary of Cancer Terms
		A microscope (device used to magnify small objects) that uses electrons (instead of light) to produce an enlarged image.
		electrolarynx, electrolyte, electromagnetic field, electromagnetic radiation, electron beam
	www.cancer.gov /Templates/db_alpha.aspx?CdrID=44025 (74 words)

	Transmission Electron Microscope
		The Philips CM200 transmission electron microscope operates at up to 200 kV and can achieve a resolution of 2 Angstroms with ultrathin specimens.
		Studying the Structure of Materials using Electron Microscopy, Diffraction and Modeling.
		Automated Acquisition of Cryo Electron Micrographs Using Leginon.
	www.itg.uiuc.edu /ms/equipment/microscopes/tem (255 words)

	Types of Microscopes (Site not responding. Last check: 2007-10-22)
		The image seen with this type of microscope is two dimensional.
		The image is seen in 3-D. It has high magnification and high resolution.
		The specimen is coated in gold and the electrons bounce off to give you and exterior view of the specimen.
	www.cas.muohio.edu /~mbi-ws/microscopes/types.html (177 words)

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