Arslandok, MesutCortez, A. F. V.Veenhof, R.2023-09-292023-09-292015-07-01Kalkan, Y. vd. (2015). "Cluster ions in gas-based detectors". Journal of Instrumentation, 10(7)1748-0221https://doi.org/10.1088/1748-0221/10/07/P07004https://iopscience.iop.org/article/10.1088/1748-0221/10/07/P07004http://hdl.handle.net/11452/34145Avalanches in gas-based detectors operating at atmospheric pressure and using Ar-CO2 or Ne-CO2 as drift medium produce in a first instance mainly Ar+, Ne+ and CO2+ ions. The noble gas ions transfer their charge to CO2 in a few ns. A few ns later, the CO2+ ions have picked up CO2 molecules, forming cluster ions, in particular CO2+ center dot (CO2)(n). Since the cluster ions are slower than the initial ions, the signals induced by ion motion are altered. The effect is shown to be present in constant-field detectors and TPC readout chambers, and is expected to affect devices such as Micromegas and drift tubes.eninfo:eu-repo/semantics/openAccessArgonAtmospheric pressureIonization of gasesNeonCluster ionsDrift tubeIon motionsMicromegasNoble gas ionsReadout chambersIonsCharge transport and multiplication in gasParticle tracking detectors (Gaseous detectors)Wide energy-rangePositive-ionsCarbon-dioxideTransport-propertiesMolecule reactionsAlkali ionsPlanetary-atmospheresMobility spectrometryInterstellar cloudsDrift velocitiesInstruments & InstrumentationArticle0003622656000232-s2.0-84937902225107Instruments & InstrumentationGas; Neon; Carbon Tetrafluoride