CPP calculation of multiple scattering distributions for charged particles penetrating compounds or mixtures

Area of Science:

• Physics
• Computational Physics
• Radiation Physics

Background:

• Charged particle interactions with matter are fundamental to radiation transport.
• Accurate modeling of multiple scattering is crucial for dosimetry and detector design.
• Existing methods often rely on approximations or effective parameters.

Purpose of the Study:

• To present a novel compound Poisson process (CPP) method for calculating multiple scattering distributions.
• To demonstrate the method's applicability to compounds and mixtures, using water as an example.
• To highlight the advantages of the CPP method over traditional approaches.

Main Methods:

• Utilizing compound Poisson process (CPP) theory to model multiple scattering events.
• Integrating individual atomic scattering events, including Rutherford and partial wave analysis cross sections.
• Applying the method to electron beams penetrating a water medium.

Main Results:

• The CPP method accurately computes transition probability densities for charged particle multiple scattering.
• The method successfully models scattering in compounds and mixtures without needing an effective atomic number.
• Calculations are accurate and adaptable to different coordinate systems.

Conclusions:

• The compound Poisson process (CPP) method offers a robust and accurate approach for multiple scattering calculations.
• This method enhances the precision of radiation dose calculations.
• The CPP method's flexibility makes it suitable for diverse applications in physics and radiation science.