A5016678350- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Advanced Measurement and Metrology Techniques
- Particle accelerators and beam dynamics
- Particle Detector Development and Performance
- Optical measurement and interference techniques
- Astronomical Observations and Instrumentation
- Advanced Optical Sensing Technologies
- Distributed and Parallel Computing Systems
- Advancements in Photolithography Techniques
- Geodetic Measurements and Engineering Structures
- Optical Systems and Laser Technology
- Experimental Learning in Engineering
- Advanced MEMS and NEMS Technologies
- Robotic Mechanisms and Dynamics
- Electric Motor Design and Analysis
- Photonic and Optical Devices
- 3D Surveying and Cultural Heritage
- Magnetic confinement fusion research
- Genetics, Bioinformatics, and Biomedical Research
- Advanced Fiber Laser Technologies
- Parallel Computing and Optimization Techniques
- Mechanical Engineering and Vibrations Research
- Geothermal Energy Systems and Applications
- Advanced Fiber Optic Sensors
European Organization for Nuclear Research
2017-2023
University of Nottingham
2023
The HL-LHC project aims at increasing the LHC luminosity by a factor 10 beyond design value. installation of set RF Crab Cavities to increase bunch crossing angle is one key upgrades program. Two concepts, Double Quarter Wave (DQW) and Dipole (RFD) have been proposed are being produced in parallel for test SPS beam before next long shutdown CERN accelerator’s complex. In retained concept, two cavities hosted single cryomodule, providing thermal insulation interfacing with coupling, tuning,...
Many future particle colliders require beam crabbing to recover geometric luminosity loss from the nonzero crossing angle at interaction point (IP). A first demonstration experiment of with hadron beams was successfully carried out high energy protons. This breakthrough result is fundamental achieve physics goals LHC (HL-LHC) and circular collider (FCC). The expected peak gain (related collision rate) 65% for HL-LHC even greater FCC. Novel experiments proton in CERN's Super Proton...
RF Crab Cavities are an essential part of the HL-LHC upgrade. Two concepts such systems being developed: Double Quarter Wave (DQW) and Dipole (RFD). A cryomodule with two DQW cavities is in advanced fabrication stage for tests protons SPS. The must be operated at 2 K, without excessive heat loads, a low magnetic environment compliance CERN safety guidelines on pressure vacuum systems. large set components, as thermal shield, layers lines, helium tank tuner required successful safe operation...
Abstract In a particle accelerator, two beams are accelerated and collided at one or several physics detectors. The machine detector interface (MDI) is the place where accelerator ring linked to detector. It area alignment requirements most stringent, MDI of lepton version future circular collider (FCC-ee) no exception. will implement complex design requirement for typical components in order 30 μm. Until now, working solutions have been proposed such MDI. this contribution, different...
To increase by more than 10 times the luminosity reach w.r.t first years of LHC lifetime, HL-LHC project will replace nearly 1.2 km accelerator during Long Shutdown 3 scheduled in 2024 [1][2][3]. This paper presents alignment and internal metrology requirements all new components to be installed, from magnet beam instrumentation vacuum devices. As for LHC, a combination Hydrostatic Levelling Sensors (HLS) Wire Positioning (WPS) is proposed main components, but on longer distance (210 m...
High radiation levels, ultra-high vacuum, cryogenic temperatures of the measured components and high electro-magnetic noise push accelerator surveyors to look for more robust accurate solutions alignment. In framework High-Luminosity LHC project at CERN, a range new cost-optimized using Fourier analysis based Frequency Sweeping Interferometry (FSI), are under development. The technique allows measurement absolute distances multiple targets simultaneously is less sensitive reflected optical...
Aligning accelerator components over 200 m with 10 μm accuracy is a challenging task within the Compact Linear Collider (CLIC) study. A solution based on laser beam in vacuum as straight line reference proposed. The positions of accelerator’s are measured respect to by sensors made camera/shutter assemblies. To validate these sensors, pointing stability has be studied m. We perform experiments air and order know how varies distance propagation environment. show that standard deviations spot...
Engineers and more specifically surveyors frequently choose optical interferometry techniques for high precision metrology applications, as they offer a very good resolution traceability of the measured distances. Nowadays, multiple interferometric solutions interferometer configurations are available on market. Part them, typically single wavelength ones, relative displacement measurement capability, with advantage (even picometre) resolution, but impractical in applications where distance...
Since several years CERN is studying the feasibility of building a high energy e+ e- linear collider: CLIC (Compact LInear Collider). The pre-alignment precision and accuracy requirement for transverse positions linac components typically 14 micrometers over sliding window 200m. One challenges precise adjustment Drive Beam quadrupole’s magnetic axis. It has to be done with micrometric resolution along 5 DOF in common support’s coordinate system. This paper describes design study solution...