Speaker
Description
Gaseous ionization detectors depend on the ionization of the gaseous media due to the passage of ionizing radiation. The primary electrons / ions are transported and amplified through the application of suitable electromagnetic configuration and, finally, registered in the form of electronic signal. They are relatively inexpensive and found applications in wide-ranging fields related to fundamental studies and industrial applications because of their excellent spatial, temporal and energy resolution leading to reliable particle identification.
An evolution of more than a century has seen the emergence of a large variety of gaseous detectors, starting from the Geiger-Muller counters to the recent crop of Micro-Pattern Gaseous Detectors (MPGD). An array of complex physical and chemical processes occurring inside these devices determine their characteristics and demands close inspection prior to the development of proper insight into them. In its turn, a thorough understanding can help a) in better interpretation of acquired data, b) in improved experiment planning, c) in proposing more optimized design of the detectors and d) in more realistic simulation of the entire experiment based on codes such as Geant4, that rely on device response specified by the user, without trying to estimate the detector response by itself.
In this presentation, we will discuss recent advances in numerical simulation of the detailed device physics of gaseous ionization detectors. Related experimental efforts will also be mentioned since neither can be dealt alone. Discussions on the mathematical formulations, algorithms and simulation frameworks will be presented. Application of the simulation tools to investigate several physics issues of current interest will also be discussed.
| Presentation type | Invited talk |
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