Simulation of resistive plate chamber in streamer mode operation

✍ Scribed by Larousse Khosravi Khorashad; Mehdi Eskandari; Ahmad Moshaii

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 952 KB
• Volume: 628
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2010.07.027

✦ Synopsis

Simulation of a streamer initiation inside the gas gap of a trigger Resistive Plate Chamber (RPC) has numerically been performed using a minimal streamer model including transport equations and Poisson equation for electrons, negative and positive ions. The simulation can well predict spatial and temporal development of a signal inside the gap in three different modes; avalanche, saturated avalanche and streamer. The space charge field is shown to be very important for the initiation of a streamer signal. The simulation can also predict existence of a precursor avalanche signal before appearance of a strong streamer signal in agreement with experimental results.