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Updated: Apr 16, 2026

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies
Published on: February 6, 2019
Radiation therapy at compact Compton sources.
Marie Jacquet1, Pekka Suortti2
1Laboratoire de l'Accélérateur Linéaire, Univ. Paris-Sud et IN2P3/CNRS, Orsay, France.
Compact Compton sources generate hard X-rays by colliding electrons and laser pulses. The ThomX machine shows potential for future radiation therapy due to its high photon flux and hospital integration capabilities.
Area of Science:
- Physics
- Medical Physics
- Accelerator Physics
Background:
- Compact Compton sources utilize the Compton scattering principle to generate hard X-rays.
- These sources involve the interaction of ultrarelativistic electron bunches with amplified laser pulses.
Purpose of the Study:
- To present the principle of compact Compton sources.
- To evaluate the potential of the ThomX machine for radiation therapy applications.
Main Methods:
- Back-scattering of laser pulses by ultrarelativistic electron bunches.
- Amplification of laser pulses in a Fabry-Perot resonator.
- Comparison of photon flux from ThomX with existing clinical trial requirements.
Main Results:
- The radiation cone has a few mrad opening and a few percent energy bandwidth.
- Projected photon fluxes range from 10^12 to 10^14 photons/s.
- ThomX provides significant flux at 80 keV, comparable to clinical trial needs.
Conclusions:
- ThomX has the potential to serve as a radiation source for future radiation therapy programs.
- The ThomX machine can be integrated into a hospital environment, facilitating clinical translation.
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