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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:13 |
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Conference: Bucharest University Faculty of Physics 2022 Meeting
Section: Nuclear and Elementary Particles Physics
Title:
An innovative architecture of MSMGRPCs based on low resistivity glass
Authors:
Daniel DOROBANȚU (1, 2), Mariana PETRIȘ (1), Mihai PETROVICI (1, 2)
Affiliation:
1) Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering -Hadron Physics Department;
2) University of Bucharest, Faculty of Physics.
E-mail
dany.do98@gmail.com
Keywords:
Gaseous detectors, Muti-Strip, Multi-Gap RPCs, ageing, high irradiation dose
Abstract:
Understanding the phase diagram of strongly interacting matter predicted
by Quantum Chromodynamics (QCD), its phase transitions and potential critical points, using heavy ion collisions is a challenging task in our days.
While at Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider(LHC) energies, the studies are concentrated on the properties of very high energy density and temperature of produced fireballs, expected to be
characteristic for the expanding Universe, a few microseconds after Big Bang, at lower collision energies, nuclear baryonic matter at densities of 5-7 times higher than the normal nuclei is produced, characteristic for the inner core of the neutron stars.
An experiment where detailed studies on the properties and dynamics of highly compressed baryonic object will be performed is the fixed target Compressed
Baryonic Matter (CBM) experiment at Facility for Anti-proton and Ion Research
(FAIR) in Darmstadt, Germany. Multi-differential analysis and high precision measurements of rare probes require unprecedented high statistics. Therefore, CBM experiment is designed to run at interaction rates up to 10 MHz for Au-Au collisions at centre of mass energies √(s_NN )=4.7 GeV at SIS100 accelerator. At this interaction rate, the low polar angles of the experiment are exposed to high particle densities with rates up to 4·10^4 particles/sec·cm2. A new generation of detectors has to be developed in order to cope with such unprecedented counting rate without deteriorating their performance. Charged hadrons identification will be provided by the Time-of-Flight (ToF) system based on Resistive Plate Counters (RPC) and tracking in a dipolar magnetic field
based on silicon detectors and out of magnetic field by Transition Radiation Detectors (TRD). For maintaining its performance over the whole lifetime of the experiment, expected to be at least 10 years, with about 2 months/year of data taking, the ageing effects due to high irradiation dose have to be reduced at maximum.
An innovative architecture of Multi-Strip Multi-Gap RPC (MSMGRPC) which fulfils all these requirements will be presented.
Acknowledgement:
This work was carried out under the contracts sponsored by the Romania Ministry for Education, Research and Digitalization: CBM FAIR-RO-03 (via IFA Coordination Agency) and PN-19-06 01 03.
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