I like to code it, code it

Open-source software development

• GATE / OpenGATE (since 2004)
  Geant4-based Monte Carlo simulation platform for medical physics.
  My role: developer since 2004 (initiated radiotherapy/hadrontherapy modules), scientific coordinator since 2018, lead developer of GATE 10 (Python)
• gaga-phsp (since 2019)
  GAN for phase-space modelling in Monte Carlo simulations.
  My role: main developer
• RTK
  Reconstruction toolkit for tomography.
  My role: contributor (initiated and mostly developed by Simon Rit)
• vvv (since 2026)
  Fast 3D/4D image viewer (LGPL-3.0). Rewrite of VV, the 4D image viewer of the group.
  My role: developer, designer
• radot (since 2026)
  A unified toolbox for radiation dosimetry in radionuclide therapy (LGPL-3.0).
  My role: main author

… and open data

POPI — We believe research on deformable image registration (DIR) of the lungs will greatly benefit from making image and validation data publicly available. Several 4D CT data sets, acquired at the Léon Bérard Cancer Center, can be downloaded for use in your research. Along with the images, we provide large sets of manually identified landmarks, allowing you to validate your motion estimation.

Lymph stations — The dataset used in [Sarrut 2014, Lynch 2013, Pitson 2012]: thoracic CT images of five lung cancer patients on which three experts consensually delineated lymph node stations 1 to 11, following the IASLC stations definition [Rusch et al. 2009]. Several anatomical structures (aorta, vessels…) are also available.

OpenDose / radot data — S-values and reference organ masses for the ICRP 110 adult phantoms, and OpenGATE validation data (Zenodo, 2026).

GATE on the grid

GateLab — An end-user application allowing researchers to easily run GATE on a computing grid, now available within the VIP platform (Virtual Imaging Platform).