Remarkable features of gas electron multipliers (GEMs) make them attractive for numerous
applications in high-energy physics, nuclear physics, astrophysics, and the medical-imaging …

The operation principle and preliminary results of a novel gas-avalanche patterned hole
electron multiplier, the Thick-COBRA (THCOBRA), are presented. This micro-hole structure …

We report on the progress in the study of cascaded GEM and GEM/MHSP gas avalanche
photomultipliers operating at atmospheric pressure, with CsI and bialkali photocathodes …

A new idea on electrostatic deviation and capture of back-drifting avalanche-ions in
cascaded gaseous hole-multipliers is presented. It involves a flipped reversed-bias Micro …

A new concept for avalanche ion back-flow (IBF) reduction in cascaded gaseous detectors is
presented. The Thick-COBRA is a Thick-GEM (THGEM) with a patterned electrode, aiming at …

We present and discuss in details a concept for the reduction of ion back-flow in GEM-based
cascaded gaseous electron multipliers, by incorporating Micro-Hole & Strip Plate (MHSP) …

A new approach to suppress ion backflow in multi-GEM structures is suggested. In this
approach, the potential difference applied across the gap between two adjacent GEMs is …

Abstract We present a Photon-Assisted Cascaded Electron Multipliers (PACEM) which has a
potential for ion back-flow blocking in gaseous radiation detectors: the avalanche from a first …

Замечательные свойства газовых электронных умножителей (г. э. у.) делают их
привлекательными для многочисленных применений в физике высоких энергий …

The IBF and the transparent rate of electrons are two essential indicators of TPC, which
affect the energy resolution and counting rate respectively. In this paper, we propose several …