2025-02-28
06:07 |
Triple GEM detectors for the Phase-2 upgrade of the CMS experiment at the LHC
/ Buonsante, M (Bari U. ; INFN, Bari) ; Pellecchia, A (Bari U. ; INFN, Bari) ; Radogna, R (Bari U. ; INFN, Bari)
/CMS Collaboration
The High-Luminosity LHC (HL-LHC) will increase proton-proton collision rates to 5–7.5 times the nominal LHC luminosity, with an expected number of 140–200 pp-interactions per bunch crossing (Pile-up or PU). To maintain the performance of muon triggering and reconstruction under high background, the forward part of the Muon spectrometer of the CMS experiment will be upgraded with Gas Electron Multiplier (GEM) and improved Resistive Plate Chamber (iRPC) detectors. [...]
2025 - 7 p.
- Published in : JINST
Fulltext: PDF;
In : 25th international Workshop on Radiation Imaging Detectors (iWoRiD2024), Lisbon, Portugal, 30 Jun - 4 Jul 2024, pp.C02003
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2025-02-28
06:07 |
Development of a novel compact and fast SiPM-based RICH detector for the future ALICE 3 PID system at LHC
/ Mazziotta, M N (INFN, Bari) ; Altamura, A R (INFN, Bari) ; Congedo, L (INFN, Bari) ; De Robertis, G (INFN, Bari) ; Di Mauro, A (CERN) ; Guerra-Pulido, J O (Mexico U., ICN) ; Licciulli, F (INFN, Bari) ; Lorusso, L (INFN, Bari ; Bari Polytechnic) ; Martinengo, P (CERN) ; Nappi, E (INFN, Bari) et al.
A dedicated R&D; is ongoing for the charged particle identification system of the ALICE 3 experiment proposed for the LHC Run 5 and beyond.One of the subsystems for the high-energy charged particle identification will be a Ring-Imaging Cherenkov (RICH) detector.The possibility of integrating Cherenkov-based charged particle timing measurements is currently under study.The proposed system is based on a proximity-focusing RICH configuration including an aerogel radiator separated from a SiPM array layer by an expansion gap. A thin high-refractive index window of transparent material, acting as a second Cherenkov radiator, is glued on the SiPM array to enable time-of-flight measurements of charged particles by exploiting the yield of Cherenkov photons in the thin window.We assembled a small-scale prototype instrumented with different Hamamatsu SiPM array sensors with pitches ranging from 1 to 3 mm, readout by custom boards equipped with the front-end Petiroc 2A ASICs to measure charges and times.The primary Cherenkov radiator consisted of a 2 cm thick aerogel tile, while various window materials, including SiO$_{2}$ and MgF$_{2}$, were used as secondary Cherenkov radiators.The prototype was successfully tested in a campaign at the CERN PS T10 beam line with pions and protons. [...]
2025 - 8 p.
- Published in : JINST
Fulltext: PDF;
In : 25th international Workshop on Radiation Imaging Detectors (iWoRiD2024), Lisbon, Portugal, 30 Jun - 4 Jul 2024, pp.C01001
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2025-02-26
06:01 |
Experimental investigation under laser-driven shocks of the dynamic behavior of materials for beam-intercepting devices in particle accelerators
/ Accettura, C (CERN) ; Baudin, L (CERN) ; Bertarelli, A (CERN) ; Brabetz, C (Darmstadt, GSI) ; Carra, F (CERN) ; Martynenko, A S (Darmstadt, GSI) ; Morena, A (Polytech. Turin) ; Moros, A (CERN) ; Peroni, L (Polytech. Turin) ; Scapin, M (Polytech. Turin) et al.
In the present work the results of an extensive experimental campaign in which laser-shocks were used to assess the mechanical strength of graphitic materials are
presented. The aim of the project was to study innovative advanced materials used in high energy particle accelerators for beam intercepting devices (BIDs), such as
collimators, absorber blocks and dumps. [...]
2024 - 10 p.
- Published in : Results Materials 24 (2024) 100638
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2025-02-26
06:01 |
Dynamic response to short-pulsed U-ion beams of material candidates for vacuum beam windows manufacturing
/ Notari, Lorenzo (Polytech. Turin) ; Pasquali, Michele (Rome U.) ; Carra, Federico (CERN) ; Losasso, Marcello (CERN) ; Guardia-Valenzuela, Jorge (CERN) ; Tomut, Marilena (Munster U. ; Darmstadt, GSI)
The introduction of next-generation extremely energetic particle accelerator facilities, such as the High-Luminosity upgrade of the LHC (HL-LHC) or the proposed future circular collider (FCC), will dramatically increase the energy stored in the circulating particle beams. This will critically affect the thermo-physical and mechanical properties of the materials adopted, possibly compromising their reliability during the operating lifetime. [...]
2024 - 26 p.
- Published in : Heliyon 10 (2024) 40707
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2025-02-26
06:01 |
Quench Protection Analysis of 20 T Hybrid Accelerator Dipole Magnets
/ Ravaioli, E (CERN) ; Ambrosio, G (Fermilab) ; Araujo, D (PSI, Villigen) ; D'Addazio, M (LBNL, Berkeley ; Polytech. Turin) ; Ferracin, P (LBNL, Berkeley) ; Gupta, R (Brookhaven Natl. Lab.) ; Marinozzi, V (Fermilab) ; Rochepault, E (IRFU, Saclay ; U. Paris-Saclay) ; Vallone, G (LBNL, Berkeley) ; Verweij, A (CERN) et al.
The US Magnet Development Program is leading an effort to design and manufacture a 20 T accelerator dipole magnet. Various designs are under development featuring cos-theta, block-coil, or common-coil geometries. [...]
FERMILAB-PUB-24-0949-TD.-
2024 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 35 (2025) 4701005
Fulltext: document - PDF; ca512b4b77b9e4bb2d2a8d74148c7725 - PDF; External link: Fermilab Accepted Manuscript
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2025-02-26
06:01 |
Design and experimental verification of a bunch length monitor based on coherent Cherenkov diffraction radiation
/ Davut, C (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Xia, G (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Apsimon, O (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; McGunigal, J (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Karataev, P (JAI, UK) ; Lefevre, T (CERN) ; Mazzoni, S (CERN) ; Senes, E (CERN)
This paper presents the design and experimental commissioning of a noninvasive electron bunch length monitor based on the detection of coherent Cherenkov diffraction radiation (ChDR). The measurement technique effectively eliminates the influence of bunch-by-bunch charge fluctuations, as each detector measures the signal from the same bunch while mitigating the impact of bunch position jitter on the measurements, providing a potential real-time diagnostic tool with significant operational advantages. [...]
2025 - 13 p.
- Published in : Phys. Rev. Res. 7 (2025) 013193
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2025-02-26
06:01 |
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2025-02-26
06:01 |
CMS CSC aging study at GIF++ setup
/ Perelygin, V V (Dubna, JINR)
/CMS Muon Collaboration
The investigation into the longevity of gaseous detectors is of paramount importance, particularly in anticipation of the forthcoming upgrade of the Large Hadron Collider (LHC) to the High-Luminosity LHC (HL-LHC) and the planned alterations to the CMS forward endcap zone. Aging effects are meticulously examined at the Gamma Irradiation Facility (GIF++) at CERN, focusing on two crucial components: the ME1/1 and ME2/1 cathode strip chambers (CSC) within the CMS. [...]
2024 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1072 (2025) 170169
In : 3rd International Conference on Detector Stability and Aging Phenomena in Gaseous Detectors, CERN, Geneva, Switzerland, 6 - 10 Nov 2023, pp.170169
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2025-02-26
06:01 |
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2025-02-26
06:01 |
Search for the Critical Point via Intermittency Analysis in NA61/SHINE
/ Reyna Ortiz, V Z (Jan Kochanowski U.)
/NA61/SHINE Collaboration
The existence and location of the QCD critical point are objects of both experimental and theoretical studies. The comprehensive data collected by NA61/SHINE during a two-dimensional scan in beam momentum and system size allows for a systematic search for the critical point – a search for a non-monotonic dependence of various correlation and fluctuation observables on collision energy and size of colliding nuclei. [...]
2024 - 5 p.
- Published in : Ukr. J. Phys. 69 (2024) 858
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