skip to primary navigationskip to content


ATHLETICS: a simple and quick way to simulate Lorentz contrast, electron holography and stray field images.


ATHLETICS (A Tremendous Holography and LorEnTz Image Creation Simulator) is a free software package that can create Lorentz contrast, electron holography and stray out-of-plane magnetic field images of the outputs from micromagnetic simulations. This allows for qualitative and quantitative comparisons of micromagnetic calulations to various experimental results, often allowing for an understanding of the experimental image features. The software is written using Igor Pro by Wavemetrics. Although Igor Pro is a commercial package, Wavemetrics offer a fully functional demo version for both Mac and Windows, so you can download it and get started right away!

The package is designed to work best on output data from LLG micromagnetic simulations, saved either as .llg_dom files or as .txt files. However any confiuration of magnetic moments is a possible starting point, and feel free to contact the authors and we will be happy to help modify the script to any starting input.

ATHLETICS is written by and of the Department of Earth Sciences, University of Cambridge. Please feel free to contact the authors with any questions/bug reports/feature requests.

ATHLETICS can be used for free, but please cite the following reference in any scientific publications that use ATHLETICS outputs:

Bryson JFJ et al. in prep

To get started, go to the Download page.


Runs on Mac OS X and Windows

Reads and manipulates LLG files

Creates electron holography, Lorentz contrast and stray field maps

Easy to use functions

Produces high quality interpolated images

Thickness ramp can easily be included in Lorentz and holography simulations

Various heights above the sample when creating out-of-plane stary field images

All images produced quickly, easily and accurately.


RSS Feed Latest news

International team head to Papua New Guinea to measure volcanic carbon degassing

Sep 01, 2016

An international team of scientists is traveling to the islands of Papua New Guinea this September to study degassing from active volcanoes in remote jungles there. Some of these volcanoes are among the most active on Earth, ejecting a significant proportion of global volcanic gases into the atmosphere.

Mistaken Point - Canada's 10th geological World Heritage Site

Aug 02, 2016

The ancient rugged coastline of Mistaken Point on Newfoundland’s Avalon Peninsula face the winds and waves of the Atlantic Ocean. It can be a difficult place to work, but nevertheless it has been a mecca for geologists for over several decades now.

An underestimated Kevan

Jul 21, 2016

Douglas Palmer on the Sedgwick Museum’s giant Pliosaurus cf. kevani in the latest edition of Geoscientist

Oesia – a new tube worm from deep Cambrian times

Jul 21, 2016

Collections up close, Sedgwick Museum of Earth Sciences

View all news

Stories from the field...