About this Course
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Intermediate Level

Basics of crystallography, geometrical optics are needed prerequisites; Fourier optics, advanced crystallography and solid state physics will help.

Approx. 31 hours to complete

Suggested: 4 hours/week...

English

Subtitles: English

What you will learn

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    You will be able to understand papers where TEM has been used and have the necessary theoretical basis for taking a practical training on the TEM.

100% online

Start instantly and learn at your own schedule.

Flexible deadlines

Reset deadlines in accordance to your schedule.

Intermediate Level

Basics of crystallography, geometrical optics are needed prerequisites; Fourier optics, advanced crystallography and solid state physics will help.

Approx. 31 hours to complete

Suggested: 4 hours/week...

English

Subtitles: English

Syllabus - What you will learn from this course

Week
1
6 hours to complete

Introduction

This week will be devoted to an introduction to the instrument, with some historical notes, as well as a review of the building blocks of a transmission electron microscope. In a second part, we will review the main lens aberrations relevant in transmission electron microscopy.

...
4 videos (Total 38 min), 11 readings, 5 quizzes
4 videos
Introduction: the instrument - I. History and building blocks17m
Reminders! Ray Diagrams.2m
Lens aberrations15m
11 readings
Welcome3m
Discussion forums10m
Grading policy and certificate5m
External resources5m
Where to get help2m
Week 1 introduction1m
Section 1.11m
Exercises for lesson 1.11h
Further resources30m
Section 1.21m
Exercises for lesson 1.21h
4 practice exercises
Awareness Quiz 1.110m
Control Quiz 1.115m
Awareness Quiz5m
Control Quiz 1.215m
Week
2
4 hours to complete

Introduction (II)

This week, we will see how to build the microscope from its individual components: lenses and aperture. Then we will have a review of the operating modes of the microscope.

...
4 videos (Total 45 min), 5 readings, 5 quizzes
4 videos
Quiz-video: 3-lens condenser system4m
Bragg's Law6m
TEM in operation12m
5 readings
Week 2 introduction1m
Section 2.11m
Exercises for lesson 2.130m
Section 2.210m
Exercises for lesson 2.210m
4 practice exercises
Awareness Quiz 2.14m
Control Quiz 2.110m
Awareness Quiz 2.24m
Control Quiz 2.215m
Week
3
7 hours to complete

Diffraction basics (I): Ewald sphere / Reciprocal lattice

In this week on the basics of electron diffraction we discuss the case of 2-beam diffraction at the Bragg angle in TEM and then show how it can be represented by the Ewald sphere/reciprocal lattice construction.

...
3 videos (Total 44 min), 8 readings, 7 quizzes
3 videos
Reciprocal lattice16m
Ewald sphere construction10m
8 readings
Week 3 introduction10m
Section 3.11m
Note on Miller indices (h k l)10m
Exercises for Lesson 3.11h
Section 3.21m
Exercises for Lesson 3.245m
Section 3.31m
Exercises for Lesson 3.330m
6 practice exercises
Awareness Quiz 3.110m
Control Quiz 3.120m
Awareness Quiz 3.215m
Control Quiz 3.215m
Awareness Quiz 3.35m
Control Quiz 3.320m
Week
4
7 hours to complete

Diffraction basics (II): Multi-beam / Kinematical scattering

In this week we finish on the basics of electron diffraction, by first taking a look at zone axis or multi-beam diffraction where we have scattering from many different crystal planes at the same time. Next, we explain this by a relaxation of the Bragg condition in the Ewald sphere/reciprocal lattice construction resulting from the TEM sample size and shape. We then see how this affects diffraction spot intensity when slightly deviated from the perfect Bragg condition in the 2-beam case.

...
3 videos (Total 48 min), 8 readings, 6 quizzes
3 videos
Shape effects on reciprocal lattice14m
Deviation from Bragg scattering17m
8 readings
Week 4 introduction10m
Section 4.11m
Exercises for Lesson 4.11h
Section 4.210m
Exercises for Lesson 4.245m
Section 4.310m
References5m
Exercises for lesson 4.330m
5 practice exercises
Awareness Quiz 4.18m
Control quiz 4.120m
Awareness Quiz 4.26m
Control Quiz 4.215m
Control Quiz 4.320m

Instructors

Avatar

Cécile Hébert

Prof.
Physics and Material sciences
Avatar

Duncan Alexander

Dr.
Physics and Material sciences

About École Polytechnique Fédérale de Lausanne

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