Double-hit separation and dE/dx resolution of a time projection chamber with GEM readout

• A time projection chamber (TPC) with micropattern gaseous detector (MPGD) readout is investigated as main tracking device of the International Large Detector (ILD) concept at the planned International Linear Collider (ILC). A prototype TPC equipped with a triple gas electron multiplier (GEM) readout has been built and operated in an electron test beam. The TPC was placed in a 1 T solenoidal field at the DESY II Test Beam Facility, which provides an electron beam up to 6 GeV/c. The performance of the readout modules, in particular the spatial point resolution, is determined and compared to earlier tests. New studies are presented with first results on the separation of close-by tracks and the capability of the system to measure the specific energy loss dE/dx. This is complemented by a simulation study on the optimization of the readout granularity to improve particle identification by dE/dx. © 2022 The Author(s)

Ämnesord

NATURVETENSKAP  -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)

Nyckelord

dE/dx detectors

Micropattern gaseous detectors (MSGC, GEM, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc)

Particle identification methods

Particle tracking detectors (Gaseous detectors)

Time projection chambers

Electron multipliers

Gas detectors

Gases

Germanium alloys

De/dx detector

Gas electron multipliers

Gaseous detectors

Micro pattern

Micromegas

Micropattern gaseous detector (MSGC, gas electron multiplier, THGEM, RETHGEM, MHSP, MICROPIC, MICROMEGAS, ingrid, etc)

Particle Identification Method

Particle tracking

Particle tracking detector (gaseous detector)

Tracking detectors

Energy dissipation

Publikations- och innehållstyp

art (ämneskategori)

ref (ämneskategori)