Conveners
Gas Detectors: GEMs
- Christoph Schwanda (Austrian Academy of Sciences)
Gas Detectors: Drift Detectors
- There are no conveners in this block
Gas Detectors: Micromegas
- Winfried Mitaroff (Austrian Academy of Sciences (AT))
Gas Detectors: Micropattern Detectors
- Winfried Mitaroff (Austrian Academy of Sciences (AT))
Patrik Thuiner
(Vienna University of Technology (AT))
2/17/16, 9:00 AM
Gaseous Detectors
Talk
Graphene is a single layer of carbon atoms arranged in a honeycomb lattice with remarkable mechanical, electrical and optical properties. It can be regarded as the thinnest and narrowest conductive mesh with a reported strong asymmetry in transmission of low energetic electrons and ions. Ideally this would make graphene a membrane transparent to electrons and opaque to ions, therefore solving...
Dr
Gianfranco Morello
(Istituto Nazionale Fisica Nucleare Frascati (IT))
2/17/16, 9:25 AM
Gaseous Detectors
Talk
The KLOE-2 experiment started its data taking campaign in November 2014 with an upgraded tracking system including an Inner Tracker built with the cylindrical GEM technology, to operate together with the Drift Chamber improving the apparatus tracking performance. The Inner Tracker is composed of four cylindrical triple-GEM, each provided with an X-V strips-pads stereo readout and equipped with...
Dr
Makoto Kobayashi
(KEK, IPNS)
2/17/16, 9:50 AM
Gaseous Detectors
Talk
Gas amplification of the electrons created by X-rays, UV photons, or charged particles plays an essential role in their detection with gaseous detectors. It acts as a “preamplifier” with a sufficient gain. However, its gain fluctuates because of avalanche statistics, thereby degrading the energy resolution for monochromatic X-rays. For large Time Projection Chambers (TPCs) the azimuthal...
Andrey Sokolov
(Budker Institute of Nuclear Physics)
2/17/16, 10:15 AM
Gaseous Detectors
Talk
Two-phase Cryogenic Avalanche Detectors (CRADs) with THGEM multipliers have become an emerging potential technique for rare-event experiments. In this work the current status of the two-phase CRAD prototype in Ar, with electroluminescence (EL) gap and combined THGEM/GAPD-matrix multiplier, is described. The low threshold and high energy resolution of the detector is provided by the EL gap,...
327.
Construction and Test of New Precision Drift-Tube Chambers for ATLAS Muon Spectrometer Upgrades
Dr
Hubert Kroha
(Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut) (D)
2/17/16, 11:30 AM
Gaseous Detectors
Talk
The Monitored Drift Tube (MDT) chambers of the ATLAS muon spectrometer demonstrated that they provide very precise and robust tracking over large areas. Goals of ATLAS muon detector upgrades are to increase the acceptance for precision muon momentum measurement and triggering and to improve the rate capability of the muon chambers in the high-background regions when the LHC luminosity...
Hajime Nishiguchi
(KEK)
2/17/16, 11:55 AM
Talk
The COMET experiment at J-PARC aims to search for a lepton-flavour violating process of muon to electron conversion in a muonic atom, μ-e conversion, with a branching-ratio sensitivity of better than $10^{-16}$, 4 orders of magnitude better than the present limit, in order to explore the parameter region predicted by most of well-motivated theoretical models beyond the Standard Model. The need...
Kiseki Nakamura
(Kyoto University)
2/17/16, 12:20 PM
Gaseous Detectors
Talk
Observation of neutrinoless double beta decay ($0\nu\beta\beta$) is of essential importance to reveal the nature of neutrino, such as mass hierarchy, absolute mass and especially its Majorana property. In order to search for $0\nu\beta\beta$, we, AXEL project, are developing a time projection chamber filled with high pressure Xenon gas. The detector can potentially achieve high energy...
Jochen Kaminski
(Universitaet Bonn (DE))
2/18/16, 9:00 AM
Gaseous Detectors
Talk
The GridPix detectors are an interesting new technology which combine a highly
granular readout structure implemented by the pixelized Timepix ASIC with a
Micromegas mesh. The mesh is produced by photolithographic processing
techniques and each mesh hole is aligned with one readout pixel. This allows for
detecting single primary electrons with high detection efficiency. Both energy
and...
Fabian Kuger
(Bayerische Julius Max. Universitaet Wuerzburg (DE))
2/18/16, 9:25 AM
Gaseous Detectors
Talk
Resistive Micromegas (Micro MEsh Gaseous Structure) detectors have
proven along the years to be a reliable high rate capable detector technology
characterised by an excellent spatial resolution. The ATLAS collaboration
has chosen the resistive Micromegas technology (mainly
for tracking), along with the small-strip Thin Gap Chambers (sTGC,
mainly for triggering), for the phase-1 upgrade of...
Maximilien Chefdeville
(Centre National de la Recherche Scientifique (FR))
2/18/16, 9:50 AM
Gaseous Detectors
Talk
Fast evacuation of avalanche ions in Micromegas makes these detectors capable of withstanding very high rates with no loss of gain. But this intrinsic high-rate capability is often compromised by sporadic sparking which introduces dead time and is potentially harmful for the readout. Resistive electrode designs, by limiting spark current and keeping voltage drop locally, provide an effective...
Mr
Eran Erdal
(Weizmann Institute of Science)
2/18/16, 10:15 AM
Gaseous Detectors
Talk
We present a new noble-liquid detection concept and experimental results in LXe, based on the bubble-assisted Liquid Hole Multiplier (LHM). In this “local dual-phase detection element”, a gas bubble is supported underneath a micro-pattern electrode (THGEM, GEM etc.) immersed inside the liquid. Ionization electrons and scintillation-induced photoelectrons (PE) extracted from a CsI photocathode,...
Oliver Kortner
(Max-Planck-Institut fuer Physik (Werner-Heisenberg-Institut) (D)
2/18/16, 11:30 AM
Gaseous Detectors
Talk
The High-Luminosity Large Hadron Collider (HL-LHC) will increase the sensitivity of the ATLAS experiment to low-rate high-energy
physics processes. In order to cope with the 10 times higher instantaneous luminosity compared to the LHC, the trigger system of
ATLAS needs to be upgraded. The ATLAS experiment plans to
increase the maximum rate capability of the first two trigger levels...
Giovanni Bencivenni
(Istituto Nazionale Fisica Nucleare Frascati (IT))
2/18/16, 11:55 AM
Gaseous Detectors
Talk
In this work we present the advances performed on the micro-Resistive WELL ($\mu$-RWELL) detector technology. The $\mu$-RWELL is a compact spark-protected single amplification stage Micro-Pattern Gas Detector (MPGD). The detector amplification stage, realized with a structure very similar to a GEM foil, is embedded through a resistive layer in the readout board. A cathode electrode, defining...
Ilaria Vai
(Universita e INFN, Pavia (IT))
2/18/16, 12:20 PM
Gaseous Detectors
Talk
Micropattern gaseous detectors (MPGD) underwent significant upgrades in recent years, introducing resistive materials to build compact spark-protected devices. Exploiting this technology further, various features such as space and time resolution, rate capability, sensitive area, operational stability and radiation hardness can be improved. This contribution introduces a new type of MPGD,...
