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Computer generated cut-away view of ALICE showing the 18 detectors of the experiment. ALICE is designed to study high-energy collisions between lead nuclei.These collisions mimic the extreme temperature and energy density that would have been found in the fractions of a second after the Big Bang by forming a quark–gluon plasma, a state of matter in which quarks and gluons are unbound.
The extended barrel section of the hadronic calorimeter. The calorimeters [1] [2] [3] are situated outside the solenoidal magnet that surrounds the Inner Detector. Their purpose is to measure the energy from particles by absorbing it. There are two basic calorimeter systems: an inner electromagnetic calorimeter and an outer hadronic calorimeter ...
Further out from the beam pipe, OPAL's calorimeter system was divided into electromagnetic calorimeters (mostly made of lead-glass blocks), hadron calorimeters (part of the return yoke of the magnet, largely made of iron) and forward calorimeters placed around, and close to, the beam pipe at the two ends of the detector to catch particles ...
The innermost layer is a silicon-based tracker. Surrounding it is a scintillating crystal electromagnetic calorimeter, which is itself surrounded with a sampling calorimeter for hadrons. The tracker and the calorimetry are compact enough to fit inside the CMS solenoid, which generates a powerful magnetic field of 3.8 T. Outside the magnet are ...
DELPHI detector at CERN. The electromagnetic calorimetry system consisted of two very forward calorimeters and two small angle calorimeter. The high-density projection chamber (HPC) was a barrel electromagnetic calorimeter mounted on the inside of the solenoid outside the OD. [14]
The experiment has a photon veto system that provides hermetic coverage between 0 and 50 milliradians. This system is made up of several subsystems covering different angular ranges; the Large Angle Vetos (LAVs) cover 8.5 - 50 mrad, the Liquid Krypton Calorimeter (LKr) covering 1 - 8.5 mrad and the Small Angle Vetos (SAV) covering 0 - 1 mrad.
The UA2 detector shown in open position at the CERN Proton-Antiproton Collider in 1982 Particle physics experiment at CERN The Underground Area 2 (UA2) experiment was a high-energy physics experiment at the Proton-Antiproton Collider ( Sp p S ) — a modification of the Super Proton Synchrotron ( SPS ) — at CERN .
CASTOR (standing for "Centauro And Strange Object Research") [1] is an electromagnetic (EM) and hadronic (HAD) calorimeter of the CMS experiment at CERN.It is based on plates made out of tungsten and quartz layers, positioned around the beam pipe in the very forward region of the CMS (at 14.385 m from the interaction point), covering the pseudorapidity range 5.1–6.55.