LabAdviser/314/Microscopy 314-307/TEM/T20: Difference between revisions
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<span style="background:#FF2800">THIS PAGE IS UNDER CONSTRUCTION</span>[[image:Under_construction.png|200px]] | |||
[[File:IMG_2076.JPG|400x400px|right|thumb|Tecnai T20 in building 314.]] | |||
= Tecnai TEM = | = Tecnai TEM = | ||
DTU Nanolabs Tecnai T20 is a transmission electron microscope (TEM) used for performing both conventional, high resolution and scanning transmission microscopy (STEM) measurements. It is a versatile instrument, ideal for studying a wide range of general and advanced materials, soft matter, composites, etc. The microscope is equipped to carry out chemical analysis as well as Cryo-TEM for soft materials.<br /> | |||
The Tecnai T20 is a transmission electron microscope equipped with a thermionic electron source with a Lab6 filament and acceleration voltages that can vary between 80-200 kV. This gives the microscope a resolution @ 200 kV of 1.4 Å in TEM mode. Other tecniques available on the microscope are scanning transmission electron microscopy (STEM, resolution 10 Å) with a high-angle annular dark-field detector (HAADF).<br /> | The Tecnai T20 is a transmission electron microscope equipped with a thermionic electron source with a Lab6 filament and acceleration voltages that can vary between 80-200 kV. This gives the microscope a resolution @ 200 kV of 1.4 Å in TEM mode. Other tecniques available on the microscope are scanning transmission electron microscopy (STEM, resolution 10 Å) with a high-angle annular dark-field detector (HAADF).<br /> | ||
On the analytical side, the microscope is equipped with an Oxford X-Max SDD X-ray detector for Energy Dispersive X-ray ( | On the analytical side, the microscope is equipped with an Oxford X-Max 80T SDD X-ray detector for Energy Dispersive X-ray (EDS) spectroscopy and a Gatan Tridiem 863 imaging filter allowing for electron energy-loss spectroscopy (EELS) and energy-filtered imaging. For imaging, the microscope is equipped with TVIPS XF416 CCD before the the energy filter and a GATAN Ultrascan US1000 after the energy filter.<br /> | ||
= TEM Schematic = | == TEM Schematic == | ||
A general schematic of a transmission electron microscope can be found [[/Schematic|here]] | A general schematic of a transmission electron microscope can be found [[/Schematic|here]] | ||
= Sample holders = | == Sample holders == | ||
The default specimen holder for the | The default specimen holder for the T20 is called Single-Tilt (FEI ST) and it is always present in building 314 Prep Room1. | ||
[[File:ST holder.jpg|300px]]<br /> | [[File:ST holder.jpg|300px]]<br /> | ||
The lab has also other specimen holders used for various application e.g. heating (furnace and MEMS-based), cooling, biasing and tomography. For information on the various specimen holders see [[LabAdviser/CEN/Sample Holders|HERE]] | The lab has also other specimen holders used for various application e.g. heating (furnace and MEMS-based), cooling, biasing and tomography. For information on the various specimen holders see [[LabAdviser/CEN/Sample Holders|HERE]] | ||
= Who may operate the | == Who may operate the Tecnai T20 == | ||
Anybody in need of a TEM microscope is welcome to apply for access to our facility by submitting an [http://labmanager.dtu.dk/function.php?module=Request&view=edit&rt=1 Access Request Form ].Shortly after your ARF has been received you will be contact by the | |||
In order to be authorised to use the Tecnai | Anybody in need of a TEM microscope is welcome to apply for access to our facility by submitting an [http://labmanager.dtu.dk/function.php?module=Request&view=edit&rt=1 Access Request Form ].Shortly after your ARF has been received you will be contact by the microscopy support team in order to set up a meeting to further discuss your application.<br /> | ||
In order to be authorised to use the Tecnai T20 you must compete the Tecnai training with consists of a theoretical lecture and 3 practical sessions of 4 hours each.<br /> | |||
Due to the similarity of the basic operations on a Tecnai TEM and a Titan TEM, a Tecnai trained user can receive additional training and progress in using a Titan TEM.<br /> | Due to the similarity of the basic operations on a Tecnai TEM and a Titan TEM, a Tecnai trained user can receive additional training and progress in using a Titan TEM.<br /> | ||
When you have demonstrated a high level of familiarity with the Tecnai TEM you will be authorized and allowed to book it via our booking system called LabManager.<br /> | When you have demonstrated a high level of familiarity with the Tecnai TEM you will be authorized and allowed to book it via our booking system called LabManager.<br /> | ||
= Booking | == Booking == | ||
Booking on the T20 is done by the users in accordance to the booking rules. Booking rules can be found in LabManager under "Documents" for the T20. | |||
'''Further information*** | |||
[http://labmanager.dtu.dk/function.php?module=Machine&view=view&mach=348 TEM Tecnai T20 in LabManager] | |||
= Calibration = | |||
*Magnification calibration cameras | |||
*Collection angles GIF | |||
*Convergence angles STEM | |||
= Process information = | |||
The following techniques and processes are available on the microscope (list isn't complete): | |||
Techniques: | |||
*[[/BF|Bright Field Imaging]] | *[[/BF|Bright Field Imaging]] | ||
*[[/STEM|Scanning Transmission Electron Microscopy]] | *[[/STEM|Scanning Transmission Electron Microscopy]] | ||
*[[/DF|Diffraction]] | *[[/DF|Diffraction]] | ||
*[[LabAdviser/314/Technique/EDS|EDS/WDS]] | |||
*[[LabAdviser/314/Technique/EELS|EELS]] | |||
*[[LabAdviser/314/Technique/EFTEM|EFTEM]] | |||
= Tips and Tricks = | |||
Here you can find some help to solve small issues on the microscope. Let us know, if you have other suggestions. | |||
*[[LabAdviser/314/TEM/ETEM/GIF-apertures|GIF apertures are not responding]] | |||
= Reference material = | = Reference material = | ||
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[http://www.ammrf.org.au/myscope/tem/introduction/ TEM Introduction by ammrf] | [http://www.ammrf.org.au/myscope/tem/introduction/ TEM Introduction by ammrf] | ||
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