LabAdviser/314/Microscopy 314-307/TEM/ETEM: Difference between revisions
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=<span style="background:#FF2800">THIS PAGE IS UNDER CONSTRUCTION</span>[[image:Under_construction.png|200px]]= | =<span style="background:#FF2800">THIS PAGE IS UNDER CONSTRUCTION</span>[[image:Under_construction.png|200px]]= | ||
= FEI Titan 80-300 ETEM = | |||
[[image:mikroskop 07.JPG|400x400px|right|thumb|Titan ETEM in building 314.]] | |||
The Titan ETEM is a transmission electron microscopy equipped with a field emission electron source, a monochromator and an aberration corrector on the objective lens. This gives the microscope a resolution of about 0.8Å in TEM mode. Other tecniques available on the microscope are scanning transmission electron microscopy (STEM, resolution 1.4 Å) with both high-angle annular dark-field (HAADF) and bright-field (BF) detectors. On the analytical side, the microscope is equipped with Oxford X-Max SDD X-ray detector for Energy Dispersive X-ray (EDX) spectroscopy and Gatan Tridiem 965 imaging filter allowing for electron energy-loss spectroscopy (EELS) and energy-filtered imaging. For imaging, the microscope is equipped with Gatan US1000 cameras before and after the energy filter.<br /> | |||
[[image:mikroskop 07.JPG|400x400px|right|thumb|Titan ETEM in building 314.]]The Titan ETEM is a transmission electron microscopy equipped with a field emission electron source, a monochromator and an aberration corrector on the objective lens. This gives the microscope a resolution of about 0.8Å in TEM mode. Other tecniques available on the microscope are scanning transmission electron microscopy (STEM, resolution 1.4 Å) with both high-angle annular dark-field (HAADF) and bright-field (BF) detectors. On the analytical side, the microscope is equipped with Oxford X-Max SDD X-ray detector for Energy Dispersive X-ray (EDX) spectroscopy and Gatan Tridiem 965 imaging filter allowing for electron energy-loss spectroscopy (EELS) and energy-filtered imaging. For imaging, the microscope is equipped with Gatan US1000 cameras before and after the energy filter.<br /> | |||
The microscope is equipped with a differential pumping system which allows gases to be introduced around the sample to a pressure on the order of 10 mbar (gas specie dependent). Several gases are permanently mounted on the system: Hydrogen, helium, methane carbon monoxide, nitrogen and oxygen. Additional gases and gas mixtures can be added as needed. Please contact Cen staff if you need other gases. [[image:Titan-etem-211113.jpg|400x400px|right|thumb|Schematic of the Titan ETEM differential pumping system.]]<br /> | The microscope is equipped with a differential pumping system which allows gases to be introduced around the sample to a pressure on the order of 10 mbar (gas specie dependent). Several gases are permanently mounted on the system: Hydrogen, helium, methane carbon monoxide, nitrogen and oxygen. Additional gases and gas mixtures can be added as needed. Please contact Cen staff if you need other gases. [[image:Titan-etem-211113.jpg|400x400px|right|thumb|Schematic of the Titan ETEM differential pumping system.]]<br /> | ||
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P. A. Crozier, T. W. Hansen, In situ and operando transmission electron microscopy of catalytic materials. ''MRS Bull.'' '''40''', 38-45 (2015). | P. A. Crozier, T. W. Hansen, In situ and operando transmission electron microscopy of catalytic materials. ''MRS Bull.'' '''40''', 38-45 (2015). | ||
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