Physics of multi-GEM structures

2002/06/30 by A. Buzulutskov · 4 citations
Engineering · Physics and Astronomy · #CCD and CMOS Imaging Sensors #Particle Detector Development and Performance #Radiation Detection and Scintillator Technologies #physics.ins-det

paper · pdf · doi:10.1016/s0168-9002(02)01458-4

published as Nucl.Instrum.Meth. A494 (2002) 148-155 · Presented at the 8th International Conference on Instrumentation for Colliding Beam Physics, Novosibirsk, Febuary 28 - March 6, 2002. To be published in Nucl. Instr. and Meth. A

arxiv created 2002/07/29 · openalex publication_date 2002/11/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show that physics of multi-GEM structures is rather complex, regarding the number of phenomena affecting detector performance. The high-pressure operation in noble gases and the ion feedback are considered in more detail. It is proposed that the dominant avalanche mechanism in He and Ne, at high pressures, is the associative ionization. Ion feedback effects related to the dependence on gas, pressure and gain and to possible avalanche extension outside the GEM holes are discussed.

Cited by

• Further studies of GEM performance in dense noble gases
• Study of ion feedback in multi-GEM structures
• First results from cryogenic avalanche detectors based on gas electron multipliers
• Two-phase argon and xenon avalanche detectors based on Gas Electron Multipliers