Design Studies for a TPC Readout Plane Using Zigzag Patterns With Multistage GEM Detectors

New design studies have been carried out for a readout plane for gas electron multiplier detectors using zigzag patterns that can significantly reduce the readout channel count while preserving excellent spatial resolution for tracking detectors. While zigzag patterns have been used in a number of a...

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Bibliographic Details
Published in:IEEE transactions on nuclear science 2018-07, Vol.65 (7), p.1416-1423
Main Authors: Azmoun, B., Garg, P., Hemmick, T. K., Hohlmann, M., Kiselev, A., Purschke, M. L., Woody, C., Zhang, A.
Format: Article
Language:English
Subjects:
Chevron
Design
Detectors
Electrodes
gas detector
Gas detectors
gas electron multiplier (GEM)
Geometry
Heavy ions
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
MPGP
NUCLEAR PHYSICS AND RADIATION PHYSICS
Photomultiplier tubes
Radiation counters
readout
Relativistic Heavy Ion Collider
Signal to noise ratio
Spatial discrimination
Spatial resolution
time projection chamber (TPC)
Two dimensional displays
X ray sources
zigzag
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Summary:New design studies have been carried out for a readout plane for gas electron multiplier detectors using zigzag patterns that can significantly reduce the readout channel count while preserving excellent spatial resolution for tracking detectors. While zigzag patterns have been used in a number of applications, these studies were designed to investigate the fundamental limits of charge sharing between the electrodes to optimize the spatial resolution and minimize the nonuniformities across the readout plane, while exploring the limits of manufacturing capabilities for producing the readout board. Simulation studies were carried out to optimize the readout electrode structure, and readout boards were produced with similar zigzag designs that were tested in the laboratory using a scanning X-ray source. These studies were aimed at developing a readout board for the new time projection chamber for the sPHENIX experiment at relativistic heavy ion collider, but can readily be used in other applications, including various micropattern gas detectors, such as Micromegas.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2018.2846403