Current prospects on Low Energy Particle Track Simulation for biomedical applications

Area of Science:

• Radiation Physics
• Computational Chemistry
• Materials Science

Background:

• Accurate simulation of low-energy particle interactions is crucial for understanding radiation effects in materials.
• Existing models often lack detail at the molecular level for electrons and positrons below 10 keV.
• A comprehensive database of scattering parameters is needed for reliable simulations.

Purpose of the Study:

• To provide an updated description of the Low Energy Particle Track Simulation (LEPTS) code.
• To detail the input data sources and selection procedures for LEPTS.
• To summarize the contents of the LEPTS database for electron and positron interactions.

Main Methods:

• Utilizing a radiation interaction simulation code (LEPTS) for electron and positron interactions.
• Focusing on energies below 10 keV and molecular-level interactions.
• Employing preferentially experimental input parameters for scattering processes.
• Simulating collisional events from initial impact to thermalization.

Main Results:

• The LEPTS code accurately describes electron and positron interactions below 10 keV at a molecular level.
• Input parameters are carefully selected from experimental data to cover all expected scattering processes.
• Detailed results on collisional events during particle slowdown are provided.
• An updated database of input parameters is available.

Conclusions:

• The LEPTS code offers a robust tool for simulating low-energy particle radiation interactions.
• The detailed database enhances the accuracy of molecular-level radiation effect predictions.
• This work provides essential resources for researchers in radiation physics and related fields.