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This section is written by DTU Nanolab internal if nothing else is stated.

FEI Tecnai T20

DTU Nanolabs Tecnai T20 is a transmission electron microscope (TEM) used for performing both conventional imaging and diffraction, 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.

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. It has the FEI super-twin (S-Twin) pole piece with a pole piece gap of 5.2 mm (Cs about 1.35 mm). 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). Additionally, it is equipped with retractable cryo plates, which makes it ideal for cryo experiments.

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 (EF-TEM). For imaging, the microscope is equipped with TVIPS XF416 CMOS (4096x4096 px) before the the energy filter and a GATAN Ultrascan US1000 (2048x2048 px) after the energy filter.

Sample holders

The default specimen holder for the T20 is called Single-Tilt (FEI ST) and it is always present in building 314 Prep Room1.
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 HERE

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 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.
In order to be authorised to use the Tecnai T20 you must complete the Tecnai training with consists of a theoretical lecture and 3 practical sessions of 4 hours each.
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.

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.

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

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:

Tips and Tricks

Here you can find some help to solve small issues on the microscope. Let us know, if you have other suggestions.

Reference material

Books:

L. Reimer, Transmission Electron Microscopy - Physics of image formation and microanalysis (Springer, 1997).

David B. Williams, C. Barry Carter, Transmission Electron Microscopy - A Textbook for Materials Science (Springer, 2009).

Online Material:

Tutorials in Transmission Electron Microscopy by John Rodenburg

TEM Basics by University of Liverpool

TEM Introduction by ammrf

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+<!-- <span style="background:#FF2800">THIS PAGE IS UNDER CONSTRUCTION</span>[[image:Under_construction.png|200px]] -->
+'''Feedback to this page''': '''[mailto:labadviser@nanolab.dtu.dk?Subject=Feed%20back%20from%20page%20http://labadviser.nanolab.dtu.dk/index.php?title=LabAdviser/314/Microscopy_314-307/TEM/T20 click here]'''
-'''Feedback to this page''': '''[mailto:labadviser@danchip.dtu.dk?Subject=Feed%20back%20from%20page%20http://labadviser.danchip.dtu.dk/index.php?title=LabAdviser/CEN/Tecnai_TEM click here]'''
+''This section is written by DTU Nanolab internal if nothing else is stated.''
-<!-- Replace "http://labadviser.danchip.dtu.dk/..." with the link to the Labadviser page-->
+[[Category:314]]
+[[Category:314-Microscopy]]
+[[File:IMG_2076.JPG|400x400px|right|thumb|Tecnai T20 in building 314.]]
-= Tecnai TEM =
-[[File:IMG_2076.JPG|350px|right|thumb|Tecnai TEM in building 314.]]CEN’s Tecnai 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 />
+= FEI Tecnai T20 =
-The Tecnai TEM 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 />
+DTU Nanolabs Tecnai T20 is a transmission electron microscope (TEM) used for performing both conventional imaging and diffraction, 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 />
-On the analytical side, the microscope is equipped with an Oxford X-Max SDD X-ray detector for Energy Dispersive X-ray (EDX) 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 Gatan US1000 CCD cameras before and after the energy filter.<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. It has the FEI super-twin (S-Twin) pole piece with a pole piece gap of 5.2 mm (Cs about 1.35 mm). 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). Additionally, it is equipped with retractable cryo plates, which makes it ideal for cryo experiments.<br />
-= TEM Schematic =
+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 (EF-TEM). For imaging, the microscope is equipped with TVIPS XF416 CMOS (4096x4096 px) before the the energy filter and a GATAN Ultrascan US1000 (2048x2048 px) after the energy filter.<br />
-A general schematic of a transmission electron microscope can be found [[Specific Process Knowledge/Characterization/Tecnai TEM/Schematic|here]]
+<!--
+== TEM Schematic ==
-= Sample holders =
+A general schematic of a transmission electron microscope can be found [[/Schematic|here]]
+-->
-The default specimen holder for the Tecnai TEM is called Single-Tilt (FEI ST)  and it is always present in the Tecnai room.
+== Sample holders ==
+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 />
-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/314/Microscopy 314-307/TEM/Sample Holders|HERE]]
+== Who may operate the Tecnai T20 ==
-= Who may operate the TEM Tecnai =
+Anybody in need of a TEM microscope is welcome to apply for access to our facility by submitting an [https://www.nanolab.dtu.dk/use-nanolab/use-of-our-facilities 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 />
-Anybody in need of a TEM microscope is welcome to apply for access to our facility by submitting an [http://www.cen.dtu.dk/english/-/media/Andre_Universitetsenheder/Cen/Access%20request%20form%20DTU%20Cen.ashx?la=da/ Access Request Form ].Shortly after your ARF has been received you will be contact by the technical 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 complete the Tecnai training with consists of a theoretical lecture and 3 practical sessions of 4 hours each.<br />
-In order to be authorised to use the Tecnai TEM 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 />
 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 Rules =
+== 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 =
-Tecnai Booking rules can be found [[Specific Process Knowledge/Characterization/TEM/Tecnai TEM/Booking rules|here]]<br/>
+The following techniques and processes are available on the microscope (list isn't complete):
-Tecnai Booking rules can be found [[/Booking rules|here]]<br/>
-=Contact information can be found in LabManager=
-<!-- remember to remove the type of documents that are not present -->
-<!-- give the link to the equipment info page in LabManager: -->
+Techniques:
-[http://labmanager.danchip.dtu.dk/function.php?module=Machine&view=view&mach=348  TEM Tecnai in LabManager]
-= Process/ Technique information =
 *[[/BF|Bright Field Imaging]]
 *[[/STEM|Scanning Transmission Electron Microscopy]]
 *[[/DF|Diffraction]]
+*[[LabAdviser/314/Microscopy 314-307/Technique/X-ray_spectroscopy|EDS/WDS]]
+*[[LabAdviser/314/Microscopy 314-307/Technique/EELS|EELS]]
+*[[LabAdviser/314/Microscopy 314-307/Technique/EFTEM|EFTEM]]
-= Comparison between TEMs at DTU Cen =
+<!--
+-->
-{{TEM comparison table}}
+= 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/Microscopy 314-307/TEM/Tips/MagicSwitch|Magic Switch is not working properly]]
+*[[LabAdviser/314/Microscopy 314-307/TEM/Tips/TVIPS camera|TVIPS camera]]
+*[[LabAdviser/314/Microscopy 314-307/TEM/Tips/Aztec|Aztec connection problems]]
+*[[LabAdviser/314/Microscopy 314-307/TEM/Tips/GIF-apertures|GIF apertures are not responding]]
+*[[LabAdviser/314/Microscopy 314-307/TEM/Tips/HAADF-detector|HAADF detector doesn't give a signal]]
+*[[LabAdviser/314/Microscopy 314-307/TEM/Tips/No-STEM|No buttons for STEM acquisition]]
+<!--
+-->
 = Reference material =
@@ Line 56: / Line 90: @@
 David B. Williams, C. Barry Carter, Transmission Electron Microscopy - A Textbook for Materials Science (Springer, 2009).
 '''Online Material:'''