Nuria Catalán Lasheras
A5037020941- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Gyrotron and Vacuum Electronics Research
- Particle Detector Development and Performance
- Radio Frequency Integrated Circuit Design
- Advanced Antenna and Metasurface Technologies
- Advancements in Photolithography Techniques
- Radiation Therapy and Dosimetry
- Microwave Engineering and Waveguides
- Physics of Superconductivity and Magnetism
- Particle physics theoretical and experimental studies
- Graphite, nuclear technology, radiation studies
- Superconductivity in MgB2 and Alloys
- Soil Moisture and Remote Sensing
- Manufacturing Process and Optimization
- Astronomical Observations and Instrumentation
- Antenna Design and Optimization
- Pulsed Power Technology Applications
- Magnetic confinement fusion research
- Advanced MEMS and NEMS Technologies
- Antenna Design and Analysis
- Advanced Frequency and Time Standards
- Spacecraft and Cryogenic Technologies
- Laser-Plasma Interactions and Diagnostics
European Organization for Nuclear Research
2009-2024
Lancaster University
2020
Vifor Pharma (Switzerland)
2020
Instituto de Física Corpuscular
2020
Brookhaven National Laboratory
2000-2014
Forschungszentrum Jülich
2005
ELCA (Switzerland)
2005
Rutherford Appleton Laboratory
2005
Oak Ridge National Laboratory
2003
The Compact Linear Collider (CLIC) is a TeV-scale high-luminosity linear $e^+e^-$ collider under development at CERN. Following the CLIC conceptual design published in 2012, this report provides an overview of project, its current status, and future developments. It presents physics potential reports on design, technology, implementation aspects accelerator detector. foreseen to be built operated stages, centre-of-mass energies 380 GeV, 1.5 TeV 3 TeV, respectively. uses two-beam acceleration...
On the wake of results obtained so far at SPARC_LAB test-facility Laboratori Nazionali di Frascati (Italy), we are currently investigating possibility to design and build a new multi-disciplinary user-facility, equipped with soft X-ray Free Electron Laser (FEL) driven by ∼1 GeV high brightness linac based on plasma accelerator modules. This study is performed in synergy EuPRAXIA study. In this paper report about recent progresses going facility.
A conceptual design is presented of a novel energy-recovering linac (ERL) facility for the development and application energy recovery technique to linear electron accelerators in multi-turn, large current regime. The main characteristics powerful experiment (PERLE) are derived from Large Hadron Collider, an beam upgrade under study LHC, which it would be key demonstrator. PERLE thus projected as investigate efficient, high (HC) (>10 mA) ERL operation with three re-circulation passages...
A prototype 11.994 GHz, traveling-wave accelerating structure for the Compact Linear Collider has been built, using novel technique of assembling from milled halves. The use halves many advantages when compared to a made individual disks. These include potential reduction in cost, because there are fewer parts, as well greater freedom choice joining technology no rf currents across halves' joint. Here we present design and fabrication structure, followed by results high-power test post-test...
The Compact Linear Collider (CLIC) is a TeV-scale high-luminosity linear e$^+$e$^-$ collider under development by international collaborations hosted CERN. This document provides an overview of the design, technology, and implementation aspects CLIC accelerator detector. For optimal exploitation its physics potential, foreseen to be built operated in stages, at centre-of-mass energies 380 GeV, 1.5 TeV 3 TeV, for site length ranging between 11 km 50 km. uses two-beam acceleration scheme,...
The PolariX TDS (Polarizable X-Band Transverse Deflection Structure) is an innovative TDS-design operating in the X-band frequency-range. design gives full control of streaking plane, which can be tuned order to characterize projections beam distribution onto arbitrary transverse axes. This novel feature opens up new opportunities for detailed characterization electron beam. In this paper we present first measurements Polarix at FLASHForward beamline DESY, including three-dimensional...
Abstract The Compact Linear Collider (CLIC) beam-based acceleration baseline uses high-gradient travelling wave accelerating structures at a frequency of 12 GHz. In order to prove the performance these high peak power and short pulse width RF, two klystron-based test facilities will be put in operation this year. first Southern Hemisphere X-band Laboratory for Accelerators Beams (X-LAB) is currently being commissioned University Melbourne, it house half CERN stand XBOX3, which has been...
This paper summarizes the low-loss design for Spallation Neutron Source accumulator ring [``Spallation Design Manual'' (unpublished)]. A hybrid lattice consisting of FODO arcs and doublet straights provides optimum matching flexibility injection collimation. For this lattice, optimization focuses on six goals: a space-charge tune shift low enough (below 0.15) to avoid strong resonances, adequate transverse momentum acceptance efficient beam collimation, optimized desired target shape minimal...
A collaboration between DESY, PSI and CERN has developed built an advanced modular X-band transverse deflection structure (TDS) system with the new feature of providing variable polarization deflecting force. The prototype novel TDS, polarizable (PolariX) was fabricated at following high-precision tuning-free production process for C-band Linac SwissFEL project. Bead-pull rf measurements were also performed to verify, in particular, that dipole fields does not have any rotation along...
The occurrence of vacuum arcs or radio frequency (rf) breakdowns is one the most prevalent factors limiting high-gradient performance normal conducting rf cavities in particle accelerators. In this paper, we search for existence previously unrecognized features related to incidence by applying a machine learning strategy cavity data from CERN's test stand Compact Linear Collider (CLIC). By interpreting parameters learned models with explainable artificial intelligence (AI), reverse-engineer...
Longitudinal electron-beam diagnostics play a critical role in the operation and control of x-ray free-electron lasers, which rely on parameters such as current profile, longitudinal phase space, or slice emittance particle distribution. On one hand, femtosecond-scale electron bunches produced at these facilities impose stringent requirements resolution achievable with diagnostics. other, research development novel accelerator technologies beam-driven plasma-wakefield accelerators (PWFA)...
CERN has constructed and is operating a klystron- based X-band test stand, called Xbox-1, dedicated to the high-gradient testing of prototype accelerating structures for CLIC other applications such as FELs. The stand now been in operation year significant progress made understanding system, improving its reliability, upgrading hardware implementing automatic algorithms conditioning structures.
The Compact Linear Collider (CLIC) is a multi-TeV high-luminosity linear e$^+$e$^-$-collider under development by the CLIC accelerator collaboration, hosted CERN. has been optimised for three energy stages at centre-of-mass energies 380 GeV, 1.5 TeV and 3 TeV. uses novel two-beam acceleration technique, with normal-conducting accelerating structures operating in range of 70-100 MV/m. report describes recent achievements design, technology prototyping, system tests beam tests. Large-scale...
A novel high-gradient accelerating structure with low phase velocity, $v/c=0.38$, has been designed, manufactured and high-power tested. The was designed built using the methodology technology developed for CLIC $100\text{ }\text{ }\mathrm{MV}/\mathrm{m}$ structures, which have speed of light but adapts them to a nonrelativistic particles. parameters were optimized compact proton therapy linac project, specifically 76 MeV energy protons, type opens more generally possibility velocity linacs....
A wind-and-react MgB <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> solenoid magnet for klystrons has been developed. While the current normal-conducting (Cu) consumes 20 kW per magnet, this less than 3 in refrigerator power. The conduction-cooled half coil of is 337 mm inner diameter; winding pack, 19.4 wide × 136.6 high, uses 2.7 km 10 filament circular conductor, which insulated with glass 0.83 diameter, and reacted after being wound...
In the framework of upgrade SPARC_LAB facility at INFN-LNF, named EuPRAXIA@SPARC_LAB, a high gradient linac is foreseen. One most suitable options to realize it in X-band. A preliminary design study both accelerating structures and power distribution system has been performed. It based on 0.5 m long travelling wave (TW) operating 2{\pi}/3 mode fed by klystrons pulse compressor systems. The main parameters are presented with basic RF layout.
Several state-of-the-art metrology measurement methods have been investigated and combined for a fiducialization of accelerator components in the micrometric regime. The PACMAN project at CERN applied stretched-wire to Compact Linear Collider quadrupole cavity beam position monitor prototypes, locate their magnetic, respectively, electromagnetic, axis using dedicated test stand determine wire with respect external alignment targets (fiducials) testing different methods, such as coordinate...
The beam alignment requirements for the next generation of lepton colliders have become increasingly challenging. As an example, three major collider components CLIC linear are as follows. Before first circulates, Beam Position Monitors (BPM), Accelerating Structures (AS)and quadrupoles will to be aligned up 10 μm w.r.t. a straight line over 200 m long segments, along 20 km linacs. PACMAN is study on Particle Accelerator Components' Metrology and Alignment Nanometre scale. It Innovative...
The collimation system for the Spallation Neutron Source accumulator ring is designed a capture efficiency close to 95% of proton beam halo, dissipating about 2 kW power. consists two-stage (one scraper and two absorbers) cleaning transverse halo beam-in-gap kicker gap residual longitudinal halo. Preliminary studies indicate that maximum level uncontrolled loss 0.01% total achievable. On other hand, energy lost in primary may kick protons outside rf bucket concentrating losses areas...
The accident in the LHC September 2008 occurred an interconnection between two magnets of 13 kA dipole circuit. Successive measurements resistance other interconnects revealed defective joints, even though SC cables were properly connected. These joints are characterized by a poor bonding cable and copper stabilizer combination with electrical discontinuity stabilizer. A quench at 7-13 level such joint can lead to fast unprotected thermal run-away hence opening It has therefore been decided...
Several scenarios are considered for the upgrade of LHC insertions in view increasing luminosity beyond 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">34</sup> cm xmlns:xlink="http://www.w3.org/1999/xlink">-2</sup> s xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> . In case "quadrupole first" option, superconducting low-quadrupoles with apertures range 90-110 mm required increased heat loads and beam crossing angles. We present possible...
The objectives of the PACMAN* project are to improve precision and accuracy alignment accelerator components. Two steps concerned: fiducialisation, i.e. determination reference axis components w.r.t targets, initial on a common support assembly. main considered for study quadrupoles, 15 GHz BPM RF structures from Compact LInear Collider (CLIC) project. Different methods have been developed determine these with micrometric accuracy, as well position this in coordinate frame tools validated...