Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 409 for “"scanning electron microscope"”.
-
Scanning Electron Microscope Study of Molluscan Shell Ultrastructures
Made available in DSpace on 2014-12-10T18:13:44Z (GMT). No. of bitstreams: 1 7021088.pdf: 6949525 bytes, checksum: 52ca17596a9d353f665bce121ea55c09 (MD5) Previous issue date: 1970
-
Transmission-mode imaging in the environmental scanning electron microscope (ESEM)
Electron microscopy was first conducted in the 1930s with the advent of the TEM and later the STEM. In 1969, the first commercial SEM was released, with the possibility of retrofitting it to behave like a STEM following soon afterwards. In 1979, Danilatos and Robinson advanced electron microscopy …
-
Progress towards quantitative dopant profiling with the scanning electron microscope
… with high spatial resolution. Secondary electron (SE) imaging in the scanning electron microscope (SEM) has been shown to be a very promising technique for dopant profiling in the past. However, the limited accuracy obtained with SE imaging (> ±20% dopant sensitivity) has hindered this …
-
Low-Energy Electron-Photon Interactions in a Scanning Electron Microscope
The interaction of free-electrons with matter and light is among the most fundamental of processes in nature. From the use of free-electrons for atomic imaging, to their use in the generation of high-intensity, tunable light in synchrotrons, the physics of unconfined electrons has wide application. …
-
Scanning electron microscope study of cracks and pores in crystalline rocks,
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1973.
-
Scanning Electron Microscope Technique for Measuring Electrical Conductivity: Application to Tetrathiafulvalene - Tetracyanoquinodimethane
Made available in DSpace on 2015-05-13T15:22:09Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7804075.PDF: 7196688 bytes, checksum: 41d300b7ff4dfe87ffc32a857d78ce6a (MD5) Previous issue date: 1977
-
Scanning electron microscope technique for measuring electrical conductivity: Application to tetrathiafulvalene-tetracyanoquinodimethane
… A movable current sour(:e provided by the electron beam of a scanning electron microscope is used to map out the potential distribution on crystal faces containing the a-b crystallographic axes. Silver paint contacts are used to return the beam current to ground and measure voltage changes …
-
Surface Microstructure Evolution of Metallic Specimens Using the Large Chamber Scanning Electron Microscope
… initial study into the use of the large chamber scanning electron microscope (LCSEM) to interrogate the surface microstructure evolution of metallic specimens has been carried out. The LC-SEM located at Western Kentucky University is the largest instrument of its type at any university in the …
-
SECONDARY ELECTRON SPECTROSCOPY INSIDE THE SCANNING ELECTRON MICROSCOPE AND ITS MATERIAL SCIENCE APPLICATIONS
The scanning electron microscope (SEM) is a powerful high resolution imaging instrument used in multiple fields of study today. The low energy scattered electrons inside it, used mainly for topographic image of a sample’s surface, contain valuable information in the emitted energy spectrum. In this …
-
Forensic Investigation of Stamped Markings Using a Large-Chamber Scanning Electron Microscope and Computer Analysis for Depth Determination
… This thesis focuses on using a large chamber scanning electron microscope to take secondary electron (SE) images of a stamped metal plate and analyzing them using the MIRA MX 7 UE image processing software for purposes of depth determination. An experimental peak luminance value of 77 (pixel …
-
Measurement of local potentials using the scanning electron microscope, and its application in the failure analysis of micro-electronic circuits
This thesis describes the development of an electron beam test system based on a conventional scanning electron microscope (SEM), and its application for the determination of voltage and timing information for detailed local study of individual components within micro-electronic …
-
Design of a recycling method for treated aluminum fuel
… of fuel waste was generated and viewed under a scanning electron microscope. The sample was then subjected to an energy-dispersive X-ray spectroscopy analysis which focused on points of interest identified by the scanning electron microscope. The results of the imaging and analysis showed that …
-
Study of diffusion damage in the copper-nickel system
… method with supporting measurements using a Scanning Electron Microscope and computer simulations. It has been found that the diffusion behavior is dynamic and is influenced by structure. At lower times a unified grain boundary-volume diffusion model is able to account for the diffusion …
-
An Analysis of the Fatigue Resistance of Beta Titanium and the Effect of Spot-Welding Upon the Fatigue Resistance of this Alloy
… specimen from each group was viewed under the scanning electron microscope to evaluate the fractured area. Specimens from three different batches of 1MA were tested and their fatigue lives compared at .625 inch deflection. One specimen from each batch was viewed under the scanning electron …
-
QUANTIFICATION OF LOW ENERGY X-RAY DETECTION IN EDS DETECTORS
… spectroscopy (EDS) detectors for application in scanning electron microscopy is proposed. In this approach an empirical parameter is computed from the x-ray spectra. This parameter represents absorption of lower energy x-rays by the EDS detector and depends on electron beam conditions and the …
-
Pathological Changes and Immunity Associated With Experimental Eimeria Vermiformis Infections in the Mouse (Mus Musculus)
… Surface changes in ileum were studied with the scanning electron microscope (SEM). Immunity to E. vermiformis was determined 30 and 105 DAI. Cross-immunity to E. ferrisi was also studied. An additional meront generation, discovered during the study, was described.
-
Taxonomy, distribution and toxicity of dinoflagellate species in the southern Benguela current, South Africa
… southern Benguela isolates, a simple and rapid scanning electron microscope preparative technique was developed. In the course of these studies, a new genus and new species were identified and described.
-
Sub-10-nm electron-beam lithography for templated placement of colloidal quantum dots
… the investigation of resolution limits of electron-beam lithography (EBL) at the sub-10-nm scale. EBL patterning was investigated at low electron energy (2 keV) in a converted scanning electron microscope and at high electron energy (200 keV) in an aberration-corrected scanning transmission …
Page 1 of 21