ASTAR device uses novel TEM based orientation/phase mapping technique to characterize any material down to 1 nm scale based on collection of precession electron diffraction patterns (PED). In combination with TOPSPIN acquisition of orientation / phase / strain/ STEM maps is possible


Novel Automated Strain Mapping Solution for TEM/STEM (Patent pending) based on nanobeam precession diffraction patterns and STEM reference image acquisition. Precision up to 0.02% (200kV FEG) with spatial resolution < 2 nm (FEG TEM). In combination with TOPSPIN acquisition of orientation /phase /strain /STEM maps is possible.


Scanned acquisition with
Precession electron diffraction . TOPSPIN is a digital STEM, beam Precession Electron Diffraction analytical Experimental framework offering a suite of beam precession imaging and advanced analytical experiments.


3D diffraction tomography in combination with DigiSTAR and precession diffraction device enable automatic reconstruction of reciprocal space, unit cell determination and crystal structure solution of any material 


e-PDF software suite uses Electron Pair Distribution Function (electron diffraction based technique) that allows to analyze local order in amorphous and nanocrystalline materials from diffuse or ring ED patterns.


4D-SPED acquisition in combination with DigiSTAR and precession diffraction can be applied to characterize local electric or magnetic fields in materials ike transistors, sensors, nanowires, batteries etc. by detecting shift of the intensity distribution of the transmited central electron beam.


Beam Precession with DigiSTAR may enhance EELS & EDX signal reducing channeling effects. EELS quantification possible via TOPSPIN model based EELS quantification.



Celebrating NanoMEGAS 

20th anniversary

20 years is a long way to go full of scientific adventures and excitement ; we had a good reason to celebrate the 20th year anniversary of NanoMEGAS (jointly with our employees and their families) at the beautiful island of  Crete (Greece) from 24-28 July.

Precession electron diffraction was invented by Vincent and Midgley exactly 30 years ago and recently ushered its golden era because of the developments of fast direct electron detectors, fast electron beam precession units & advanced data processing algorithms NanoMEGAS has been pioneering precession diffraction related applications since 20 years ago with developments in orientation /phase and strain mapping, 3D ED tomography, PDF analysis of amorphous phases and electric field mapping in materials science.

Is impossible to thank all our friends and customers that accompanied us in this successful 20 years journey. Just to name a few  of our early adopters like Dr. Douglas Dorset (ExxonMobil, USA) , Prof. A. S. Avilov (Shubnikov Institute of Crystallography, Russian Academy of Sciences, Moscow, Russia), Prof. Del Planck (ULB Brussels, Belgium), Prof. Thomas E. Weirich (Aachen University, Germany), Prof. Ute Kolb (University of Mainz, Germany), Prof. J. P. Abrahams (University of Basel, Switzerland), Dr. Edgar F. Rauch (Université Grenoble Alpes, France), Prof. Muriel Veron (Université Grenoble Alpes, France), Prof. Jean Paul Morniroli  (Université de Lille, France), Prof. Paul Midgley (University of Cambridge, UK), Prof. Sven Hovmöller (Stockholm University, Sweden), Prof. Xiaodong. Zou (Stockholm University, Sweden), Dr. Mauro Gemmi (Istituto Italiano di Tecnologia, Italy), Prof. Peter Moeck (Portland State University, USA) just to name only few of them. 

Today we are proud not only of the more than 290 installations in various TEMs all over the world but also of the more than 900 scientific publications in precession diffraction related fields coming from various scientific laboratories.

NanoMEGAS Workshop 2024

Applications of Precession Enhanced Electron Diffraction


JUNE 5, 2024

Precession 30 Years Anniversary

Quantum Design and NanoMEGAS are excited to announce a special workshop celebrating the 30th anniversary of beam precession development in electron diffraction for Transmission Electron Microscopy (TEM). The event will take place at Cambridge University, where the pioneers in beam precession technology has significant impact in the field. 

Cambridge University and NanoMEGAS have been pivotal contributors on Precession ED applications, keeping the consistently and systematic development of novel applications and methodology improvements.

This workshop will bring together experts and researchers to explore the evolution and impact of beam precession over the past three decades. Through presentations and TEM demonstrations, we will delve into its fundamental principles, advanced applications, and future prospects.

We invite you to join us for this insightful event as we celebrate the achievements and advancements made possible by beam precession in TEM.

NanoMEGAS User Meeting 2024

Applications of Precession Enhanced Electron Diffraction


JUNE 6, 2024

Precession 30 Years Anniversary

We are delighted to invite you to the NanoMEGAS User’s Meeting, celebrating the 30th anniversary of beam precession development in electron diffraction for Transmission Electron Microscopy (TEM). The event is jointly organised by Quantum Design and NanoMEGAS and will be hosted at Cambridge University, an institute with significant historical contributions to beam precession technology.

The meeting aims to showcase the latest developments and upgrades in NanoMEGAS applications, including faster data collection, utilisation of 4D-SPED for advanced applications, integration with various detectors, synergy with in-situ studies, etc.

The invitation is exclusively for experienced NanoMEGAS system users.

In the second part of the meeting, selected scientific works will be presented, highlighting recent advancements and results. We are excited to invite you to present your latest scientific results, using NanoMEGAS applications.

Early registration is highly recommended as the schedule and presentation slots will be limited. Your timely response will help us organise the agenda effectively and ensure your participation in this insightful event.

Further details regarding the agenda will be provided to you soon.

Your contribution will add significant value to the discussions and enrich the collective knowledge sharing during this milestone celebration.

MDPI special issues include a total of 19 published papers including contributions from important researchers in the field of electron crystallography and  from  leading  Electron Diffraction device Manufacturers.

Dr. Partha Pratim Das, Dr. Arturo Ponce-Pedraza,
Dr. Enrico Mugnaioli, Dr. Stavros Nicolopoulos

Deadline for manuscript submissions: 31 January, 2024

Symmetry | Special Issue: Electron Diffraction and Structural Imaging  I (

Symmetry | Special Issue: Electron Diffraction and Structural Imaging II (



21 to 25 April 2024
Vaals, Netherlands

Advanced Analytical Methods
for Formulation Development

4 to 5 June 2024
Darmstadt, Germany


Microscopy & Microanalysis

28 July to 1 August 2024
Cleveland, OH, USA


25 to 30 August 2024
Copenhagen, Denmark