A5035056064- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Particle Detector Development and Performance
- Nuclear Physics and Applications
- Particle physics theoretical and experimental studies
- Advanced X-ray Imaging Techniques
- Sensor Technology and Measurement Systems
- Laser-Plasma Interactions and Diagnostics
- Gyrotron and Vacuum Electronics Research
- Lightning and Electromagnetic Phenomena
- Inertial Sensor and Navigation
- Advanced Data Storage Technologies
- Magnetic Field Sensors Techniques
- Analytical Chemistry and Sensors
- Medical Imaging Techniques and Applications
- Fluid Dynamics and Turbulent Flows
- Magnetic confinement fusion research
- Plasma and Flow Control in Aerodynamics
- Geophysics and Gravity Measurements
- Advanced Electrical Measurement Techniques
- Distributed and Parallel Computing Systems
École Polytechnique Fédérale de Lausanne
2024
European Organization for Nuclear Research
2020
University of Sannio
2013-2017
Abstract A method to monitor the length of a particle bunch, based on combination Radio Frequency Deflector (RFD) with magnetic focusing elements, is presented. With respect state-of-the-art bunch measurement, additional element allows measure also correlations between longitudinal and transverse planes in terms both position divergence. Furthermore, quadrupole-based increases input dynamic range measurement system (i.e. for larger beam Twiss parameters at entrance RFD). Thus, resolution...
The effects of assumptions about bunch properties on the accuracy measurement method length based radio frequency deflectors (RFDs) in electron linear accelerators (LINACs) are investigated. In particular, when at RFD has a non-negligible energy chirp (i.e. correlation between longitudinal positions and energies particle), is affected by deterministic intrinsic error, which directly related to phase offset. A case study this effect LINAC gamma beam source Extreme Light Infrastructure-Nuclear...
We present a linearized method to study transverse instabilities due electron clouds. It is based on an accurate and compact characterization of the cloud dipolar quadrupolar forces, that can be easily obtained from quick single-pass numerical simulations. The long-term stability properties bunch are then predicted by solving Vlasov equation, taking into account forces introduced e-cloud along as well betatron tune modulation with longitudinal coordinate forces. benchmarked against...
In high-brightness electron linear accelerators (LINACs), the particle bunch length is measured by a radio frequency deflector (RFD). The deflected vertically toward screen and its can be obtained using vertical spot size measurements after proper calibration, e.g., measuring centroid while varying deflecting voltage phase. energy parameters of (the chirp spread) correlation between positions, divergences, energies contribute to dimension at position RFD so far were considered as source...
The Ironless Inductive Position Sensor has been introduced as a valid choice for precise and accurate position sensing in harsh magnetic environments. It is made of 4 fixed coils one moving coil presents complete immunity to external interfering fields. This paper introduces the model stray capacitance coil, since presence such parasitic capacitances can seriously affect supply frequency sensor design optimization. results are then compared with experimental measurements. constitutes...
In high-brightness LINear ACcelerators (LINACs), electron bunch length can be measured indirectly by a radio frequency deflector (RFD). this paper, the accuracy loss arising from non-negligible correlations between particle longitudinal positions and transverse plane (in particular vertical one) at RFD entrance is analytically assessed. Theoretical predictions are compared with simulation results, obtained means of ELEctron Generation ANd Tracking (ELEGANT) code, in case study gamma beam...
Abstract The Future Circular Collider (FCC) study is developing designs for a new research infrastructure to host the next generation of higher performance particle colliders extend currently being conducted at LHC. In particular, FCC-ee an electron-positron collider, which first stage towards 100 TeV proton-proton collider FCC-hh. may be affected by electron cloud (e-cloud) and strongest effects are foreseen Z configuration, due highest number bunches, corresponds smallest bunch spacing....
The Gamma Beam System (GBS) is a high brightness LINAC to be installed in Magurele (Bucharest) at the new ELI-NP (Extreme Light Infrastructure - Nuclear Physics) laboratory. accelerated electrons, with energies ranging from 280 720 MeV, will collide power laser produce tunable energy photons (0.2-20MeV ) intensity (10e13 photons/s), brilliance and spectral purity (0.1% BW), through Compton backscattering process. This light source open users for nuclear photonics physics advanced...