CERN / ALICE ToF Detector
The Alice Collaboration is building a dedicated heavy-ion detector to exploit the unique physics potential of nucleus-nucleus interactions at LHC energies. The collaboration's aim is to study the physics of strongly interacting matter at extreme energy densities, where the formation of a new phase of matter, the quark-gluon plasma, is expected.
The existence of such a phase and its properties are key issues in QCD for the understanding of confinement and of chiral-symmetry restoration. For this purpose, the collaboration intends to carry out a comprehensive study of the hadrons, electrons, muons and photons produced in the collision of heavy nuclei. Alice will also study proton-proton collisions both as a comparison with lead-lead collisions in physics areas where Alice is competitive with other LHC experiments
CAEN will supply the Alice experiment at CERN / Geneva with 710 TDC boards, to be known as “TRM”: TDC Read-out Module and their 77 special crates with VME64X bus and power supply.
The whole system will be used in the Time-of-Flight detector and is to work under huge magnetic field and moderate radiation.
The TRM is a custom-board developed by CAEN and to be known as VX1390 - derived from the standard V1290A - with 240 TDC channels with 25 ps resolution. Each board hosts 30 TDC chips developed by CERN's ECP-MIC Division (HPTDC).
Because of the radioactive environment, an accurate choice of components is required and the TRMs implement protections from Single Event Latch-up and from Single Event Upset.
The boards will be inserted in a special crate developed by CAEN and to be known as SY2390 - 'Alice-ToF-box'. The same crate hosts the power supply modules for both the TRMs and the TOF detector front-end modules. CAEN is also in charge for the design and implementation of the water-cooling system of the crate. The whole power supply system to guarantee smooth operation in a magnetic field up to 5 thousand gauss.
Schematic of ALICE
The detector is 25 m wide, has a diameter of 15 m and weighs 10'000 tons
The existence of such a phase and its properties are key issues in QCD for the understanding of confinement and of chiral-symmetry restoration. For this purpose, the collaboration intends to carry out a comprehensive study of the hadrons, electrons, muons and photons produced in the collision of heavy nuclei. Alice will also study proton-proton collisions both as a comparison with lead-lead collisions in physics areas where Alice is competitive with other LHC experiments
CAEN will supply the Alice experiment at CERN / Geneva with 710 TDC boards, to be known as “TRM”: TDC Read-out Module and their 77 special crates with VME64X bus and power supply.
The whole system will be used in the Time-of-Flight detector and is to work under huge magnetic field and moderate radiation.
The TRM is a custom-board developed by CAEN and to be known as VX1390 - derived from the standard V1290A - with 240 TDC channels with 25 ps resolution. Each board hosts 30 TDC chips developed by CERN's ECP-MIC Division (HPTDC).
Because of the radioactive environment, an accurate choice of components is required and the TRMs implement protections from Single Event Latch-up and from Single Event Upset.
The boards will be inserted in a special crate developed by CAEN and to be known as SY2390 - 'Alice-ToF-box'. The same crate hosts the power supply modules for both the TRMs and the TOF detector front-end modules. CAEN is also in charge for the design and implementation of the water-cooling system of the crate. The whole power supply system to guarantee smooth operation in a magnetic field up to 5 thousand gauss.
Schematic of ALICE
The detector is 25 m wide, has a diameter of 15 m and weighs 10'000 tons
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