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08/06/2026, 08:00
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Alexander Lunt (University of Bath (GB)), Raymond Veness (CERN)08/06/2026, 09:00
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Francesca Addesa (PSI)08/06/2026, 09:30
At the Paul Scherrer Institute (PSI), nanotechnology has been successfully employed to develop a new generation of minimally invasive Wire Scanners with sub-micrometer spatial resolution for monitoring the transverse beam size at SwissFEL during lasing operation. The devices consist of a monolithic low-stress Si₃N₄ structure with a C-shaped silicon fork, integrating two perpendicular wires for...
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Alexander Lunt (University of Bath (GB))08/06/2026, 10:00
Low-density, carbon-based materials are widely used in accelerators for beam-intercepting instruments. Ongoing upgrades to the CERN accelerator complex have exposed the physical limits of these materials to beam damage, which are expected to become increasingly problematic with future upgrades. Novel high strength, lower density 1-D materials such as long-strand Carbon Nanotubes (CNTs) wires...
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Federico Roncarolo (CERN), Stephane Burger (CERN)08/06/2026, 10:30
Screen-based instruments are deployed throughout the CERN accelerator chain for beam steering, transverse profile measurement, and machine setup. Conventional scintillating and Optical Transition Radiation (OTR) screens act as solid interceptors, but their interaction with high-intensity beams leads to significant beam losses and material degradation, limiting their applicability in...
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Simon Thomas Stegemann (CERN)08/06/2026, 11:30
In the field of particle accelerators, materials are routinely exposed to extreme environments, including high vacuum, intense particle irradiation, and both ultra-low and ultra-high temperatures. These demanding conditions place stringent requirements on structural and functional materials, particularly in fixed target experiments where high-energy, high-intensity proton beams are used to...
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Wim Weterings (CERN)08/06/2026, 12:00
at CERN, the Linac4 accelerator is injecting 160 MeV H− beam into the 4 superposed PS Booster rings. This is achieved by a H− charge-exchange injection chicane system, using 200 µg/cm2 low density material stripping foils, to convert the negative hydrogen ions into protons by stripping off the electrons. In parallel, stripping efficiency measurements, of different foil types, are done with a...
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Emi Yamakawa (STFC)08/06/2026, 12:30
A feasibility study of a single-wire Scanner profile Monitor (WSM) was conducted for the demonstration ring of a Fixed Field Alternating gradient (FFA) accelerator, together with the Front-End Test Stand (FETS), called FETS-FFA, as a part of the ISIS-II upgrade project. A Carbon Nano Tube (CNT) wire was selected for the FETS-FFA WSM as it is durable against heat damage from low-energy proton...
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Matteo Pasquali (Rice University)08/06/2026, 13:30
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James Elliott (University of Cambridge)08/06/2026, 14:00
Carbon nanotube macromaterials are promising low-density candidates for accelerator beam instrumentation because they combine low mass, high specific mechanical properties, electrical and thermal transport, and potential resilience under demanding environments. Their performance, however, is governed not only by the intrinsic properties of individual nanotubes, but by the full hierarchy of...
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Yoku Inoue (Shizuoka University)08/06/2026, 14:30
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Dr Anastasiia Mikhalchan08/06/2026, 15:30
Interconnected networks of carbon nanotubes (CNT) synthesized by the direct Floating Catalyst CVD process (FCCVD) are the key structural components in macroscopic yarns and sheets. These macromaterials demonstrate high mechanical and electrical properties relevant to a wide range of applications.
Mechanical testing of CNT macromaterials usually involves dedicated equipment, such as micro-...
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Shiqi Huang (University of Bath)08/06/2026, 16:00
Generating pores in graphene by decoupled nucleation and expansion is desired to achieve a fine control over the porosity and is desired to advance several applications. In situ studies of pore formation are particularly valuable, as they enable direct observation of the process while simultaneously allowing measurement of the associated properties within the same experimental setup.1
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Habib Rostami (University of Bath)08/06/2026, 16:30
Two-dimensional materials offer a versatile platform for nonlinear optoelectronics, where light can generate electrical currents and optical signals that are strongly tunable, symmetry-sensitive, and intrinsically linked to the microscopic dynamics of electrons. In contrast to conventional photodetection, nonlinear photocurrent generation can provide direct access to electronic structure,...
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Fernando Lomello09/06/2026, 09:30
Fostering rapid research and the market entry of more efficient and sustainable materials derived from non-critical and non-toxic resources represents a major challenge. In this context, the French nationwide program PEPR DIADEM (Development of Innovative Materials Using Artificial Intelligence), launched in 2022, aims to accelerate the entire innovation chain “from concept to fruition”...
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Ana Teresa Perez Fontenla (CERN)09/06/2026, 10:00
The microscopy team at CERN supports the community by providing advanced material characterization, including topographical imaging, morphology analysis, phase identification, and chemical characterization using Scanning Electron Microscopy (SEM), Focused Ion Beam (FIB)-SEM, and X-ray Diffraction (XRD).
A wide range of materials is investigated, with emphasis on metals and alloys, as well...
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Marcel Himmerlich (CERN)09/06/2026, 10:30
Nanostructured carbon allotropes have a wide range of applications for the integration into functional and hybrid materials as well as essential element in integrated sensors and detectors. Their chemical functionalisation furthermore enhances the spectrum of application. Photoelectron spectroscopy is a material characterisation tool that supports the synthesis of such materials via enabling...
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Dr Carmelo Herdes Moreno09/06/2026, 11:30
Carbon nanotubes (CNTs) and related low-density materials are attracting growing interest for next-generation particle accelerator and beam instrumentation applications due to their unique combination of low density, high thermal conductivity, mechanical resilience, and radiation tolerance. However, understanding their behaviour under extreme accelerator environments requires bridging multiple...
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Ryan Paul Camilleri09/06/2026, 12:00
Beam-induced damage poses a critical threat to the functionality of diagnostic instruments and the operational safety of accelerator facilities. This contribution presents recent advancements and insights into the thermomechanical modelling of invasive beam diagnostic devices (e.g. SEM grids, wire scanners, and screens) under irradiation conditions. Modelling strategies are outlined along with...
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Dr Emmanuel Flahaut (University of Tolouse)09/06/2026, 12:30
Carbon nanomaterials, and especially Carbon Nanotubes (CNTs) and Graphene have been among the most studied nanomaterials due to their exceptional combination of physical properties which have led to applications in almost all fields. Unfortunately, in the case of graphene, the large-scale production of good quality samples (low number of layers (less than five, what is called "few-layer...
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Carsten Peter Welsch (Cockcroft Institute / University of Liverpool), Dr Bifeng Lei09/06/2026, 13:30
The development of next-generation particle accelerators increasingly depends on materials that can withstand extreme fields while enabling new regimes of beam–matter interaction. Within this context, low-density and nanostructured materials, in particular carbon nanotube (CNT) systems, offer a transformative platform for passive components and active acceleration media.
This contribution...
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Thierry Stora (CERN)09/06/2026, 14:00
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Raymond Veness (CERN)09/06/2026, 14:30
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09/06/2026, 15:30
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