Electron Microscope Unit
نویسندگان
چکیده
منابع مشابه
The Application of GPGPU to Automatic Electron Gun Alignment in the Scanning Electron Microscope
Once trained, the human brain is an excellent image processor; to replicate that skill for scanning electron microscope (SEM) image assessment demands considerable computing power. We have evaluated parallel computing for this purpose and developed an image processing tool for the automatic optimisation of electron gun alignment. The instrumental setup for this work was a Carl Zeiss 1430VP SEM ...
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Experimental resolution values, half distances (HD), were determined for electron microscope radioautography with (14)C as the source of radioactivity. These were about a factor of 1.5-2 times higher than for tritium. Grain distributions normalized in units of HD were found to fit the "universal" curves previously obtained for tritium.
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Of 14 cases of clinically and biochemically confirmed idiopathic steatorrhoea, 11 showed mucosal abnormalities when biopsy specimens from the upper small intestine were examined under the dissecting, the light, and the electron microscope. In the three remaining cases mucosal changes could be detected only under the electron microscope. The simple and inexpensive dissecting microscope can there...
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In van der Veen et al., [Struct. Dyn. 2, 024302 (2015)], femtosecond and nanosecond electron energy loss spectroscopy of deep core-levels are demonstrated. These results pave the way to the investigation of materials and molecules with combined energy, time, and spatial resolution in a transmission electron microscope. Furthermore, the authors elucidate the role of the electron phonon coupling ...
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In this study the cryo-unit is introduced as a new and useful instrument to investigate water-containing specimens with the SEM. Often water-containing biological specimens are studied, but in our case we used water-swollen polymer membranes. The results show that application of a cryo-unit permits the study of this material at low temperatures up to magnifications of about 10 000 times, while ...
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John Cowley and his group at Arizona State University pioneered the use of transmission electron microscopy for high-resolution imaging. Images were achieved three decades ago showing the crystal unit cell content at better than 4 A resolution. This achievement enabled researchers to pinpoint the positions of heavy atom columns within the unit cell. Lighter atoms appear as resolution is improve...
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تاریخ انتشار 2006