# Collision Integrals for Transport in Plasmas: The Phenomenological Approach

## TL;DR

This paper discusses a method for calculating plasma transport properties using collision integrals derived from a phenomenological approach.

## Contribution

The paper introduces a recent generalization of correlation formulas impacting collision integrals involving silicon species.

## Key findings

- The phenomenological approach provides a physics-based framework for deriving transport cross sections.
- Recent generalizations of correlation formulas affect collision integrals involving silicon species.
- The method's validation and features are reviewed for plasma transport characterization.

## Abstract

The accuracy of transport properties, essential to the characterization of technological plasmas of interest in many fields, relies on the fundamental information about the collision integrals for the binary interactions in the system. The phenomenological approach has been demonstrated to provide a very useful theoretical framework for the derivation of transport cross sections, and in turn collision integrals, by a physics-sound description of the chemical species interaction. The features of the method and its validation are here briefly reviewed and the impact of the recent generalization of the correlation formulas on collision integrals for interactions involving Si species is estimated.