# Particle Matter interaction

- Institution: CERN
- Department: CAS - CERN Accelerator School
- Speaker: Giuseppe Lerner
- Year: 2025
- Level: Graduate
- Language: English
- Subjects: Physics
- Source: [CERN](https://videos.cern.ch/record/3023607)
- Licence: [CERN](https://copyright.web.cern)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

This lecture introduces key concepts in particle-matter interactions, including cross sections, mean free path, and their relation to interaction probabilities. Photon and charged particle interactions are covered, followed by nuclear interactions of hadrons. The main features of electromagnetic and hadronic showers initiated by high-energy projectiles are then presented. The lecture concludes with an introduction to Monte Carlo codes for modelling radiation-matter interactions, and a first look at LHC-type radiation showers.

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## Lectures

1. [Particle Matter interaction](https://invisiblenetwork.ai/learn/cern/3023607/045c4624fb44), 53 min (CERN's player)