Low Density Materials for Particle Accelerator Applications

Session

Session 1B:

8 Jun 2026, 09:30

University of Bath 10W 2.45

Conveners

Session 1B:: Applications, state-of-the-art and needs of the community

• Chiara Pasquino (CERN)

6. Wire scanners in electron machines

Francesca Addessa (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...

7. Wire scanners in Hadron machines

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...

8. 2D low-density materials for screens

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...