Ion-neutral interactions refer to the interactions between ions (charged particles) and neutral particles in a gas phase or plasma environment. These interactions play a crucial role in various scientific fields, such as plasma physics, atmospheric science, and astrochemistry. They can involve processes such as ionization, charge exchange, and collisional energy transfer. Studying ion-neutral interactions can provide insights into the behavior of plasmas, the chemistry of planetary atmospheres, and the processes occurring in interstellar space. Understanding these interactions is essential for developing technologies and models that rely on ion-neutral interactions, such as fusion reactors, chemical sensors, and atmospheric modeling. Researchers in this field use a variety of experimental and theoretical techniques to investigate ion-neutral interactions and their impact on various systems. By studying these interactions, scientists can gain a deeper understanding of the fundamental processes that govern the behavior of ions and neutrals in different environments.