Dr. Archambault is a FRQ-S Junior 2 Research Scholar and a radiation physicist with expertise in medical physics, radiation oncology, and medical imaging. He joined the CHU de Québec in 2010 after a postdoctoral fellowship in the division of radiation oncology at the MD Anderson Cancer Center and became a professor in the department of physics, engineering physics, and optics at Laval University in 2013. Hi work focuses on developing new instruments and novel algorithms to make radiation treatments more efficient. His work has been recognized on multiple occasions by the scientific community. Since 2012, he has received the Sylvia Fedoruk prize twice from the Canadian Organization of Medical Physicists (COMP) annually acknowledging the best scientific publication on medical physics by Canadian authors.

Improving the efficiency of radiation treatments

The success of a radiation treatment depends on our ability to focus a high dose of radiation on a tumor target while sparing surrounding tissues. To this end, the complexity of radiation treatment delivery has tremendously increased in recent years, and new tools are required to rapidly and accurately monitor radiation dose delivery. Using materials that emit visible light when irradiated, Dr. Archambault’s team has developed new types radiation dosimeters such as one of the first time-resolved 3D radiation dose detectors. These innovative tools are uniquely positioned to address the challenges of modern radiation treatments (e.g. delivery in the presence of strong magnetic fields) and offer a new way of studying the factors that limit the efficiency of radiation treatments such as anatomical changes.

A second aspect of the research is the development of smart algorithms that automatically analyze data and images produced during radiation treatments to guarantee accurate delivery. Thus, building such a virtual safety net can complement and support the expertise of healthcare professionals to guarantee that every cancer patient treated with radiotherapy receives the best possible treatment. Using machine learning, these algorithms can even predict which patients are likely to require an adaptation of their treatment plan, thus opening new possibilities in personalized radiotherapy.

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Beddar S, Archambault L, Sahoo N, Poenisch F, Chen GT, Gillin MT, Mohan R

Exploration of the potential of liquid scintillators for real-time 3D dosimetry of intensity modulated proton beams.

Journal Article

Med Phys, 36 (5), pp. 1736-43, 2009, ISSN: 0094-2405.

Abstract | Links:

Ponisch F, Archambault L, Briere TM, Sahoo N, Mohan R, Beddar S, Gillin MT

Liquid scintillator for 2D dosimetry for high-energy photon beams.

Journal Article

Med Phys, 36 (5), pp. 1478-85, 2009, ISSN: 0094-2405.

Abstract | Links:

52 entries « 6 of 6 »
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Active projects

  • Centre de recherche du CHU de Québec - Université Laval, Subvention, Centre hospitalier universitaire de Québec - Université Laval, Centres de recherche affiliés, from 2017-01-01 to 2099-12-31
  • Centre de recherche sur le cancer, Subvention, Institutionnel - BDR, BDR - Centres de recherche reconnus, from 1996-05-01 to 2022-06-13
  • New tools and method for monitoring ionizing radiation delivery in medical physics, Subvention, Conseil de recherches en sciences naturelles et génie Canada, Subventions à la découverte SD (individuelles et d'équipe), from 2018-04-01 to 2023-03-31
  • NSERC CREATE in Responsible Health and Healthcare Data Science, Subvention, Conseil de recherches en sciences naturelles et génie Canada, Programme de formation orientée vers la nouveauté, la collaboration et l'expérience en recherche (FONCER), from 2019-09-01 to 2026-08-31

Recently finished projects

  • Développement d'un système de dosimétrie à scintillation multipoints, Subvention, MITACS Inc., Mitacs Accélération grappe, from 2019-03-18 to 2020-05-31
  • Étalonnage autodidacte de dosimètres à scintillation multi-points, Partenariat, Ministère de l'Économie et de l'Innovation, Programme de soutien aux organismes de recherche et d’innovation (PSO) - Volet 1 : Soutien au fonctionnement d'organisme (Ancien PSVT), from 2019-03-29 to 2020-02-15
  • Une radiothérapie plus efficace par un processus évolutif et adaptatif, Subvention, Fonds de recherche du Québec - Santé, Chercheur-boursier Juniors 1 et 2, Seniors, from 2016-07-01 to 2020-06-30
Data provided by the Université Laval research projects registery