Conveners
Gas Detectors
- Ariella Cattai (CERN)
Gas Detectors
- Ariella Cattai (CERN)
Gas Detectors
- Ariella Cattai (CERN)
Gas Detectors
- Ariella Cattai (CERN)
The long baseline neutrino experiment T2K has launched the upgrade project of its near detector ND280, crucial to reduce the systematic uncertainty to less than 4%. An essential component of this upgrade consists of the resistive Micromegas TPCs, for 3D track reconstruction, momentum measurement and particle identification. These TPC, with overall dimensions of 2x2x0.8 m3, will be equipped...
The ATLAS collaboration at LHC has endorsed the resistive Micromegas technology, along with the small-strip Thin Gap Chambers (sTGC), for the high luminosity upgrade of the first muon station in the high-rapidity region, the so called New Small Wheel (NSW) project. After the R&D, design and prototyping phase, the first series production Micromegas quadruplets have been constructed at all...
Detectors with a time resolution of a few 10ps and robustness in high particle fluxes are necessary for precise 4D track reconstruction in future, high luminosity HEP experiments. In the context of the RD51 collaboration, the PICOSEC detector concept has been developed, which is a two-stage Micromegas detector with a photocathode coupled to a Cherenkov radiator. Single channel PICOSEC...
Due to their large active volume and low energy threshold for particle detection Time Projection Chambers (TPCs) are promising candidates to characterise neutrino beams at the next generation long baseline neutrino oscillation experiments such as DUNE and Hyper-K, the successor of the T2K experiment. The higher target density for the incoming neutrino beam of a TPC filled with gas at High...
The MEG experiment, at the PSI, aims at searching the charged lepton flavor violating decay $\mu^{+}\rightarrow e^{+}\gamma$. MEG has already determined the world best upper limit on the branching ratio: BR<4.2$\times10^{-13}$@90\%CL.
The new positron tracker is a high transparency single volume, full stereo cylindrical Drift Chamber (DC), immersed in a non uniform longitudinal B-field, with...
The CMS Muon Spectrometer is being upgraded (the GE1/1 project) during the LS2 shutdown (2019-2020) using large-area, trapezoidal-shaped triple-GEM detectors in the forward region, 1.6 < eta < 2.2. We present the chamber assembly and qualification procedure, as well as an overview of the results obtained during detector qualification. We report preliminary results on system integration and...
Observation of the neutrinoless double-beta decay (0v2b) is a key to solve the neutrino absolute mass and the Majorana nature. Recent 0ν2b search experiments will test the neutrino mass region allowed in case of the inverted mass ordering, but oscillation experiments favor the normal ordering. For 0v2b search in the normal ordering region, a background-free search with a 1-ton scale large...
The KLOE-2 experiment represents the continuation of KLOE and acquired 5.5 fb$^{-1}$ data from November 2014 to March 2018 with the aim of collecting the largest sample of $\phi$ mesons at the DA$\Phi$NE $e^+e^-$ collider at the Frascati National Laboratory of INFN.
A new tracking device, the Inner Tracker, was installed at the interaction region of KLOE-2 and it was operated together with...
Transition Radiation Detectors (TRD) has the attractive features of being able to separate particles by their gamma factor. The classical TRDs are based on Multi-Wire Proportional Chambers (MWPC) or straw tubes, filled with Xenon based gas mixture to efficiently absorb transition radiation photons. While it works for experiments with relatively low particle multiplicity, the performance of...
The instantaneous luminosity of the LHC will be increased by almost an order of magnitude
with respect to the design value by undergoing an extensive upgrade program for the
High-Luminosity LHC (HL-LHC). Many upgrades are foreseen for the thin gap chambers
(TGC) of the ATLAS Muon System. A Phase-I upgrade project is the replacement of the
present first station in the forward regions with the...
Digital and Semi-Digital Hadronic Calorimeters (S)DHCAL were suggested for future Colliders as part of the particle-flow concept. Though studied mostly with RPC-based techniques, studies have shown that MPGD-based sampling elements could outperform. An attractive, industry-produced, robust, particle-tracking detector for large-area coverage, e.g. in (S)DHCAL, could be the novel single-stage...
Resistive Plate Chamber (RPC) detectors are widely used at the CERN LHC experiments as muon trigger thanks to their excellent time resolution. They are operated with a Freon-based gas mixture containing C2H2F4 and SF6, both greenhouse gases (GHG) with a very high global warming potential (GWP). The search of new environmentally friendly gas mixtures is necessary to reduce GHG emissions and...
Scintillation light detection by imaging sensors presents a versatile and intuitive readout modality for gaseous radiation detectors. Based on visible scintillation light emission from gas mixtures such as Ar/CF4, optical readout provides images with high spatial resolution.
We present novel readout approaches including ultra-fast imaging for beam monitoring in addition to studies of optically...
We have developed a gaseous pixel detector based on four Timepix3 chips that can serve as a building block for a large detector plane. To provide the required gas amplification a fine grid has been deposited on the chip surface by wafer postprocessing (GridPix technology). The precisely aligned grid holes and chip pixels having a pitch of 55 µm and the high time resolution of 1.56 ns of the...
