A5013364763- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Nuclear Physics and Applications
- Graphite, nuclear technology, radiation studies
- Muon and positron interactions and applications
- Dark Matter and Cosmic Phenomena
- Nuclear reactor physics and engineering
- Radiation Detection and Scintillator Technologies
- Radiation Therapy and Dosimetry
- Fusion materials and technologies
- Microstructure and mechanical properties
- Nuclear and radioactivity studies
- Aluminum Alloys Composites Properties
- Medical Imaging Techniques and Applications
- High-Velocity Impact and Material Behavior
- International Science and Diplomacy
- Advanced materials and composites
- Boron and Carbon Nanomaterials Research
- Intermetallics and Advanced Alloy Properties
- Ion-surface interactions and analysis
- Nuclear Materials and Properties
- Non-Destructive Testing Techniques
European Organization for Nuclear Research
2021-2024
The neutron time-of-flight (n_TOF) facility at the European Laboratory for Particle Physics (CERN) is a pulsed white-spectrum spallation source producing neutrons two experimental areas: Experimental Area 1 (EAR1), located 185 m horizontally from target, and 2 (EAR2), 20 above target. based on pure lead, impacted by high-intensity 20-GeV/c proton beam. was conceived to study neutron-nucleus interactions kinetic energies between few meV several GeV, with applications of interest nuclear...
Two 6-t beam dumps, made of a graphite core encapsulated in stainless steel vessel, are used to absorb the energy two Large Hadron Collider (LHC) intense proton beams during operation accelerator. Operational issues started appear 2015 LHC Run 2 (2014-2018) as consequence progressive increase kinetic energy, necessitating technical interventions highly radioactive areas around dumps. Nitrogen gas leaks appeared after energetic impacts and instrumentation measurements indicated an initially...
The Experimental Cavern North 3 (ECN3) is an underground experimental cavern on the CERN Pr\'evessin site. ECN3 currently hosts NA62 experiment, with a physics programme devoted to rare kaon decays and searches of hidden particles approved until Long Shutdown (LS3). Several options are proposed longer term in order make best use worldwide unique potential high-intensity/high-energy proton beam extracted from Super Proton Synchrotron (SPS) ECN3. current status their study by Physics Beyond...
The "target and capture channel" is one of the crucial systems in a Muon Collider, whose function to create an intense muon beam from decay pions generated by multi-MW proton impinging on particle-producing target. To guarantee resulting muons, channel consists sequence solenoids, providing well-defined profile axis, with 20 T peak at target location adiabatic decrease along length. solenoids need substantial shielding radiation heat load dose originating nuclear interactions target, which...
The Beam Dump Facility (BDF) is a planned fixed-target installation in CERN's North Area, set to start operating 2031. A proton beam of 400 GeV/c will be delivered 1 s pulses 4e13 protons every 7.2 s, amounting 4e19 on target (PoT) per year, with an average thermal power deposition 305 kW. experiment requires high-Z and high-density materials involves challenging thermomechanical conditions; hence, water-cooled refractory metal core proposed. To prevent corrosion erosion, the - tungsten...
Particle-producing targets in high-energy research facilities are often made from refractory metals, and they typically require dedicated cooling systems due to the challenging thermomechanical conditions experience. However, direct contact of water with target blocks can induce erosion, corrosion, embrittlement, especially tungsten (W). One approach overcoming this problem is cladding tantalum (Ta). Unfortunately, Ta generates high decay heat when irradiated, raising safety concerns event a...
Abstract CERN’s North Area comprises several target and experimental systems is a zone of interest for future development. Provision beam to this area relies upon beam-intercepting devices located in various branched transfer lines from the Super Proton Synchrotron. In lines, these include primary production system beryllium plates followed by combined collimation, attenuation dump device made set aluminum, copper iron blocks known as ‘TAX’ (Target Attenuator [for] eXperimental areas). These...
This study introduces numerical advancements in an alternative design for the SPS Beam Dump Facility (BDF) at CERN. The envisions a high-power operation target made of flowing liquid lead. BDF is proposed versatile facility CERN, intended both beam-dump-like and fixed-target experiments. behavior assessed, assuming proton beam with momentum 400 GeV/c, pulse frequency 1/7.2 Hz, average power 355 kW. An evaluation conducted using various Computational Fluid Dynamics (CFD) codes to analyze lead...
This study introduces numerical advancements in an alternative design for the Super Proton Synchrotron (SPS) Beam Dump Facility (BDF) at European Laboratory Particle Physics (CERN). The envisions a high-power operation target made of flowing liquid lead. proposed BDF is versatile facility both beam-dump-like and fixed-target experiments. behavior studied, assuming proton beam with momentum 400 GeV/c, pulse frequency 1/7.2 Hz, average power 355 kW. Using various Computational Fluid Dynamics...
Flexible graphite (FG) with ρ = 1 g/cm3 density is a type of highly porous and anisotropic graphite, mainly used for gaskets sealing applications, but also suitable energy absorption, such as in the beam dumping devices Large Hadron Collider (see Heredia 2021 [1]). Knowledge its microstructure mechanical properties needs to be developed selection an adequate material model able accurately predict stresses failure FG components. Here, available literature are reviewed, followed by Focused Ion...
Abstract The Chopper Dump in the Linac4 accelerator at CERN is a beam-intercepting device responsible for absorption of 3 MeV H − ion beam produced by source and deflected upstream an electromagnetic chopper. It allows portion beam, which would otherwise fall into unstable region radiofrequency buckets Proton Synchrotron Booster, to be dumped low energy with minimal induced radiation. may also used absorb entire beam. With peak currents 25 45 mA shallow penetration, this results large...
Flexible graphite (FG) with 1 - 1.2 g/cm$^3$ density is employed as beam energy absorber material in the CERN's Large Hadron Collider (LHC) dumping system. However, increase of deposited expected for new HL-LHC (High-Luminosity LHC) design demanded an improvement reliability and safety devices, need a calibrated model suitable high-level FE simulations has been prioritized. This work sets basic knowledge to develop FG this aim. A review properties available literature first given, followed...
As part of the main focus BDF Working Group in 2021, this document reports on study alternative locations and possible optimisation that may accompany reuse existing facilities with aim significantly reducing costs facility. Building BDF/SHiP Comprehensive Design Study (CDS), assessment rests generic requirements constraints allow preserving physics reach facility by making use $4\times 10^{19}$ protons per year at 400\,GeV are currently not exploited SPS for which no is compatible. The...