# Marie-Catherine Vozenin

Source: https://onco.cc/people/marie-catherine-vozenin/  
OnCo record `marie-catherine-vozenin` (Person). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Radiobiologist who discovered the FLASH effect: ultra-fast radiation spares healthy tissue while still killing tumours.

## Summary

Marie-Catherine Vozenin led the 2014 study showing that radiation delivered at ultra-high dose rates (over 40 Gy per second) spares normal lung tissue in mice while retaining anti-tumour efficacy, the FLASH effect, and went on to confirm it in mini-pigs, cats and the first human patient with Jean Bourhis. Her work launched a global effort to build FLASH-capable machines and understand the underlying biology.

## Fields

- Kind: Person
- Last checked: 2026-09-10
- Tags: radiotherapy; flash; radiobiology
- Role: Head of the Radiotherapy and Radiobiology Laboratory, Geneva University Hospitals; Professor, University of Geneva
- Specialisms: FLASH radiotherapy; Radiobiology; Normal tissue protection; Ultra-high dose rate radiation

## Sources

- PubMed: https://pubmed.ncbi.nlm.nih.gov/?term=Vozenin%20MC%5BAuthor%5D%20FLASH

## Connected records

- technologies: [FLASH radiotherapy](https://onco.cc/technologies/flash-rt/)
- institutions: [Geneva University Hospitals (HUG)](https://onco.cc/institutions/hug-geneva/), [Lausanne University Hospital (CHUV) / Ludwig Institute Lausanne](https://onco.cc/institutions/chuv-lausanne/)
- journals: [Science Translational Medicine](https://onco.cc/journals/science-translational-medicine/)

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