Proposed upgrade of PHENIX to sPHENIX at RHIC is focused on measuring jets, jet correlations and three states of upsilons to determine the temperature dependence of transport coefficients of the quark-gluon plasma and complementing measurements being made at LHC. The sPHENIX detector will have GEM based Time Projection Chamber (TPC) as an outer tracking detector with a length of 211 cm and...
A picoammiter system has been developed by prototyping and engineering. It consists in a current-voltage converter, based on an operational amplifier with very low input current, a high precision ADC, a radio controlled data acquisition unit and the computer-based control, visualization and storage. The picoammiter is characterized by a precision of the order of a tenth of picoamperes and it...
In order to maintain the physics performance and the detection efficiency of the CMS muon system in the future HL-LHC environment, the CMS muon group has proposed to instrument the vacant regions of the forward muon end-caps with the Gas Electron Multiplier (GEM) technology, which can operate in high-rate environment with detection performance fully compatible with the CMS requirements.
This...
New large size Micromegas gaseous detectors (40x40 cm² active area) were developed since 2009 in view of the COMPASS new physics programs started in 2015, which uses the CERN high intensity muon and hadron beams of a few hundred GeV scattered on thick fixed targets. The new detectors feature a huge reduction of the discharge rate compared to original COMPASS Micromegas by a factor of above 100...
From the heart of stars to laboratories, plasmas constitute one of the major objects of the physics in many research institutes. Very big research infrastructures aim at big advances in the understanding of the physics of plasmas. Some Fields of application of science, as inertial confinement fusion experiment or Magnetic confinement fusion for energy, produce very energetics particles that...
The CBELSA/TAPS experiment located at the Elektronen Stretcher Anlage (ELSA) in Bonn (Germany) aims to investigate the excitation spectrum of baryons and the properties of baryon resonances.
The high-resolution electromagnetic calorimeter is optimized for the study of reactions with photons in the final state.
In order to enhance the sensitivity of the detector system to charged particles, a...
The ALICE experiment at the Large Hadron Collider at CERN is upgrading its central tracking detector, the Time Projection Chamber (TPC). The installation is foreseen during the second long shutdown of the Large Hadron Collider. The upgrade includes the complete exchange of the present MWPC readout chambers (ROC) with new ones based on Gas Electron Multiplier detectors. This is necessary due to...
The proposed sPHENIX detector design is focused mainly on a physics program of precise upsilon spectroscopy and jet measurements, which require a high tracking efficiency and excellent momentum resolution. A time projection chamber (TPC) is proposed as the outer tracking detector for sPHENIX, which has a rapidity coverage of |η|<1.1 and full azimuthal coverage. The sPHENIX TPC design has to be...
Heavy ion collisions provide a direct experimental framework to study the properties of the Quark Gluon Plasma.
The sPHENIX detector will be the next state-of-the-art system to measure hard processes observables with high accuracy in a broad p$_\mathrm{T}$ range.
The sPHENIX tracking system will feature a compact Time Projection Chamber working in continuous read-out mode as the main tracking...
SPHENIX plans to build a world class jet detector at RHIC. Previously inaccessible measurements include jets reconstructed with hadronic calorimeters and fully resolved upsilon states. The current plan includes a highly granular silicon pixel detector (MAPS), a silicon strip detector (INTT) and a time projection chamber (TPC). The tracking system will work in continuous read out, at high data...
We have developed a gas electron multiplier (GEM), which is mainly applied to the X-ray polarimeter with a micro pattern TPC. The GEM has a hole diameter of 70 $\mathrm{\mu}$m, a hole pitch of 140 $\mathrm{\mu}$m, an insulator thickness of 100 $\mathrm{\mu}$m, and a size of an effective area of 30 × 78 mm$^2$. We adopted a liquid crystal polymer (LCP) sheet as the GEM insulator. To simplify a...
The DarkLight experiment has been proposed to search for a heavy photon, A'
in the mass range of 10-100 MeV/c$^2$ produced in electron-proton
collisions. Phase-I of DarkLight has started to take place in 2016 at the
Low Energy Recirculator Facility (LERF) at Jefferson Lab. LERF delivered a
100 MeV electron beam onto a windowless hydrogen gas target. The phase-I
detector tracks leptons inside...
This work presents a new industrial application of MPGDs for thin films characterization and quality control. This is made by the design and adaptation of an optimal electronics and other technical features of a 3GEM that take advantage of the great qualities of these detectors for the specific application. This work have been developed at the Laboratorio de Detectores of the Universidad...
