MHSP in reversed-biased operation mode for ion blocking in gas-avalanche multipliers
arXiv:physics/0503237 · doi:10.1016/j.nima.2005.04.063
Abstract
We present recent results on the operation of gas-avalanche detectors comprising a cascade of gas electron multipliers (GEMs) and Micro-Hole and Strip Plates (MHSPs) multiplier operated in reversed-bias (R-MHSP) mode. The operation mechanism of the R-MHSP is explained and its potential contribution to ion-backflow (IBF) reduction is demonstrated. IBF values of 4E-3 were obtained in cascaded R-MHSP and GEM multipliers at gains of about 1E+4, though at the expense of reduced effective gain in the first R- MHSP multiplier in the cascade.
23 pages, 8 figures
References in corpus (6)
- The STAR Time Projection Chamber: A Unique Tool for Studying High Multiplicity Events at RHIC
- Thick GEM-like hole multipliers: properties and possible applications
- Study of ion feedback in multi-GEM structures
- Ion backflow in the Micromegas TPC for the future linear collider
- Ion-induced effects in GEM & GEM/MHSP gaseous photomultipliers for the UV and the visible spectral range
- Recent Investigations of Cascaded GEM and MHSP detectors
Cited by in corpus (7)
- Ion-induced effects in GEM & GEM/MHSP gaseous photomultipliers for the UV and the visible spectral range
- Further progress in ion back-flow reduction with patterned gaseous hole-multipliers
- The Thick-COBRA: a New Gaseous Electron Multiplier for Radiation Detectors
- Advances in ion back-flow reduction in cascaded gaseous electron multipliers incorporating R-MHSP elements
- Electric and Photoelectric Gates for ion backflow suppression in multi-GEM structures
- The Photon-Assisted Cascaded Electron Multiplier: a Concept for Potential Avalanche-Ion Blocking
- Simulation on the Transparency of Electrons and Ion Back Flow for a Time Projection Chamber based on Staggered Multiple THGEMs