Broad beam three-dimensional irradiation for proton radiotherapy

Area of Science:

• Medical Physics
• Radiation Oncology
• Particle Therapy

Background:

• Proton beam therapy offers precise dose delivery.
• Conformal irradiation of complex target volumes remains a challenge.
• Existing proton therapy systems may require complex modifications for 3D targeting.

Purpose of the Study:

• To propose a novel three-dimensional irradiation system for proton beams.
• To enable precise 3D irradiation of convex-shaped target volumes.
• To utilize readily available techniques for implementation.

Main Methods:

• Implementation of scatterers for lateral beam spreading.
• Utilization of a movable multileaf collimator.
• Employing a variable thickness water column for range modulation.
• Computer control integrating these components.

Main Results:

• The proposed system achieves three-dimensional irradiation.
• Convex target volumes can be effectively treated.
• The system is achievable using ordinary techniques.

Conclusions:

• The developed system provides a practical approach for 3D proton beam irradiation.
• It simplifies the treatment of convex target volumes.
• This method enhances the capabilities of proton therapy delivery.