Conveners
New gas mixtures and gas mixture degradation: New gas mixtures and gas mixture degradation a
- Anatoli Romaniouk (National Research Nuclear University MEPhI (RU))
New gas mixtures and gas mixture degradation: New gas mixtures and gas mixture degradation 1
- Beatrice Mandelli (CERN)
New gas mixtures and gas mixture degradation: New gas mixtures and gas mixture degradation 2
- Beatrice Mandelli (CERN)
Resistive Plate Chambers (RPCs) are widely used in high-energy physics experiments because of their excellent ability to cover large detection areas with high particle detection efficiency and good time resolution. Often these properties are achieved by RPC detectors when they are operated with Freon-based gaseous mixtures that cause high global warming potential (GWP). Therefore, in order to...
Resistive Plate Chamber detectors at the CERN LHC experiments use a Freon-based gas mixture containing R-134a and SF6, high global warming potential greenhouse gases. To minimise greenhouse gas emissions and expenses and optimise RPC performance, it is crucial to research new environmentally friendly gas mixtures. Thus, according to CERN's environmental strategies and European regulations,...
Resistive Plate Chambers (RPCs) are gaseous detectors widely used in high energy physics experiments, operating with a gas mixture primarily containing Tetrafluoroethane (C$_2$H$_2$F$_4$), commonly known as R-134a, which has a global warming potential (GWP) of 1430. To comply with European regulations and explore environmentally friendly alternatives, the RPC EcoGas@GIF++ collaboration,...
In the context of particle physics, different families of gaseous detectors are operated with fluorinated-gases for different purposes. It is well known that under the effect of high electric field and radiation, fluorinated molecules may break and form, among other species, free fluorine ions. Such ions may react with water molecules present in the gas, leading to the formation of highly...
In the context of climate change, one of the main contributors to global warming is the greenhouse effect. Regulations have been implemented in different areas of society to reduce or ban the use of greenhouse gases, such as freon. Despite the fact that large-scale experiments (such as the ones held at CERN) have been excluded from these restrictions, as a scientific community, we have the...
The standard gas mixture for the Resistive Plate Chambers (RPC), composed of $\rm{C_{2}H_{2}F_{4}/i-\rm{C_{4}H_{10}/SF_{6}}}$, allows the detector operation in avalanche mode, as required by the high-luminosity collider experiments. The gas density, the low total charge delivered inside the gas and the comfortable avalanche-streamer separation guarantee high detection efficiency, rate...
Cathode Strip Chambers (CSC) are used for precise measurements of muon track coordinates in the CMS endcap region. CMS CSCs operate with 40%Ar+50%CO2+10%CF4 as a working gas mixture, where the CF4 component provides reliable protection against anode wire aging sufficient for operation during the HL-LHC period. However, CF4 has a Global Warming Potential (GWP) of 6630 over 100 years, and is...
Recent advancements in active target detectors, enabling the detection gas to act as a target for nuclear reactions, have provided a significant boost to the exploration of nuclei near the drip lines and the exotic nuclear phenomena associated with them. ACTAR-TPC at GANIL is a novel detector of such kind that can construct a 3-D mapping of the decay or reaction products from two-dimensional...
