Studying signals in particle detectors with resistive elements such as the 2D resistive strip bulk MicroMegas

• Main Authors: Janssens, Djunes, Brunbauer, Florian, Flöthner, Karl Jonathan, Lisowska, Marta, Muller, Hans, Oliveri, Eraldo, Orlandini, Giorgio, Riegler, Werner, Ropelewski, Leszek, Schindler, Heinrich, Scharenberg, Lucian, Utrobicic, Antonija, Veenhof, Rob
• Format: Journal Article
• Language: English
• Published: 04-04-2023
• Subjects: Physics - Instrumentation and Detectors
• DOI: 10.48550/arxiv.2304.01883

As demonstrated by the ATLAS New Small Wheel community with their MicroMegas
(MM) design, resistive electrodes are now used in different detector types
within the Micro Pattern Gaseous Detector family to improve their robustness or
performance. The extended form of the Ramo-Shockley theorem for conductive
media has been applied to a 1 M$\Omega$/$\Box$ 2D resistive strip bulk MM to
calculate the signal's spreading over neighbouring channels using an 80 GeV/c
muon track. For this geometry, the dynamic weighting potential was obtained
numerically using a finite element solver by applying a junction condition and
coordinate scaling technique to accurately represent the boundary conditions of
a $10\times 10$ cm$^2$ active area. Using test beam measurements, the results
of this model will be used to benchmark this microscopic modelling methodology
for signal induction in resistive particle detectors.