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Pulsed-Mode Magnetic Field Measurements with a Single Stretched Wire System / Vella Wallbank, Joseph (Malta U.) ; Buzio, Marco (CERN) ; Parrella, Alessandro (CERN) ; Petrone, Carlo (CERN) ; Sammut, Nicholas (Malta U.)
In synchrotrons, accurate knowledge of the magnetic field generated by bending dipole magnets is essential to ensure beam stability. Measurement campaigns are necessary to characterize the field. [...]
2024 - 26 p. - Published in : Sensors 24 (2024) 4610 Fulltext: PDF;

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NC Modelling & measurement of non-linear effects / Buzio, Marco (speaker) (CERN)
This lecture concerns the techniques to measure and model mathematically non-linear effects in iron-dominated magnets, with the aim to control the magnetic field with a high precision, 100 ppm or better, as typically required in particle accelerators. The topics covered include a review of the physical phenomenology of magnetic saturation, hysteresis and eddy currents in material samples and accelerator magnets, as well of the most popular models to represent them; a discussion on the available instrumentation and measurement techniques; and a survey of open-loop and closed-loop (feedback-based) magnetic field control methods, with a critical comparison about their cost and effectiveness..
2023 - 2632. CERN Accelerator School; CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria External links: Talk details; Event details In : CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria

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Magnetic measurement systems overview / Buzio, Marco (speaker) (CERN)
This lecture provides a broad overview of the topic of measurement of the field generated by accelerator magnets. First, the need of magnet testing is put in context by comparing it with numerical modelling and beam-based measurements. [...]
2023 - 3807. CERN Accelerator School; CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria External links: Talk details; Event details In : CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria

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Introduction to practical exercises / Yang, Yifeng (speaker) (University of Southampton (GB)) ; Eisterer, Michael (speaker) ; Buzio, Marco (speaker) (CERN) ; García-Tabarés, Luis (speaker) ; Fiscarelli, Lucio (speaker) (CERN)
2023 - 2613. CERN Accelerator School; CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria External links: Talk details; Event details In : CAS course on "Normal- and Superconducting Magnets", 19 November - 02 December 2023, St. Pölten, Austria

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Rotating-Coil Measurement System for Small-Bore-Diameter Magnet Characterization / Lauria, Anna (Polytech. Turin ; CERN) ; Arpaia, Pasquale (CERN ; U. Naples (main)) ; Buzio, Marco (CERN) ; Gilardi, Antonio (SLAC) ; Parvis, Marco (Polytech. Turin) ; Pentella, Mariano (CERN) ; Sabbatini, Lucia (Frascati) ; Simoni, Enzo (Savoie U. (main)) ; Vannozzi, Alessandro (Frascati)
Rotating-coil measurement systems are widely used to measure the multipolar fields of particle accelerator magnets. This paper presents a rotating-coil measurement system that aims at providing a complete data set for the characterization of quadrupole magnets with small bore diameters (26 mm). [...]
2022 - 22 p. - Published in : Sensors 22 (2022) 8359 Fulltext: PDF;

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A Static-Sample Magnetometer for Characterizing Weak Magnetic Materials / Arpaia, Pasquale (Naples U.) ; Buzio, Marco (CERN) ; Parrella, Alessandro (CERN) ; Pentella, Mariano (CERN) ; Ramos, Pedro M (Lisbon, IST)
In this article, a static-sample magnetometer is presented to measure the relative permeability of weakly magnetic materials. The method consists of scanning the magnetic field inside a dipole magnet by using an NMR teslameter to measure the perturbation of a test specimen on the externally applied field. Then, an inverse problem is used to compute the specimen’s relative permeability. [...]
2021 - 9 p. - Published in : IEEE Trans. Instrum. Meas. 70 (2021) 1-9

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Drift-Free Integration in Inductive Magnetic Field Measurements Achieved by Kalman Filtering / Arpaia, Pasquale (Naples U.) ; Buzio, Marco (CERN) ; Di Capua, Vincenzo (Naples U. ; CERN) ; Grassini, Sabrina (Turin Polytechnic) ; Parvis, Marco (Polytech. Turin) ; Pentella, Mariano (CERN ; Turin Polytechnic)
Sensing coils are inductive sensors commonly used to measure magnetic fields, such as those generated by electromagnets used in many kinds of industrial and scientific applications. Inductive sensors rely on integrating the output voltage at the coil’s terminals in order to obtain flux linkage, which may suffer from the magnification of low-frequency noise resulting in a drifting integrated signal. [...]
2022 - 16 p. - Published in : Sensors 22 (2022) 182 Fulltext: PDF;

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Development of a Real-Time Magnetic Field Measurement System for Synchrotron Control / Vella Wallbank, Joseph (CERN ; U. Malta) ; Amodeo, Maria (CERN ; Turin Polytechnic) ; Beaumont, Anthony (CERN) ; Buzio, Marco (CERN) ; Di Capua, Vincenzo (CERN ; U. Naples (main)) ; Grech, Christian (CERN ; U. Malta) ; Sammut, Nicholas (U. Malta) ; Giloteaux, David (CERN)
The precise knowledge of the magnetic field produced by dipole magnets is critical to the operation of a synchrotron. Real-time measurement systems may be required, especially in the case of iron-dominated electromagnets with strong non-linear effects, to acquire the magnetic field and feed it back to various users. [...]
2021 - 29 p. - Published in : Electronics 10 (2021) 2140 Fulltext: PDF;

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Hysteresis Modeling in Iron-Dominated Magnets Based on a Multi-Layered NARX Neural Network Approach / Amodeo, Maria (CERN ; Turin Polytechnic ; U. Naples (main)) ; Arpaia, Pasquale (CERN ; U. Naples (main)) ; Buzio, Marco (CERN) ; Di Capua, Vincenzo (CERN ; U. Naples (main)) ; Donnarumma, Francesco (CNR, Italy)
A full-fledged neural network modeling, based on a Multi-layered Nonlinear Autoregressive Exogenous Neural Network (NARX) architecture, is proposed for quasi-static and dynamic hysteresis loops, one of the most challenging topics for computational magnetism. This modeling approach overcomes drawbacks in attaining better than percent-level accuracy of classical and recent approaches for accelerator magnets, that combine hybridization of standard hysteretic models and neural network architectures. [...]
2021 - 18 p. - Published in : Int. J. Neural Syst. 31 (2021) 2150033 Fulltext: PDF;

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Error characterization and calibration of real-time magnetic field measurement systems / Grech, Christian (CERN ; Malta U.) ; Amodeo, Maria (Turin Polytechnic ; CERN) ; Beaumont, Anthony (CERN) ; Buzio, Marco (CERN) ; Capua, Vincenzo Di (CERN ; Naples U.) ; Giloteaux, David (CERN) ; Sammut, Nicholas (CERN ; Malta U.) ; Wallbank, Joseph Vella (CERN ; Malta U.)
In synchrotrons at the European Organization for Nuclear Research (CERN), magnetic measurement systems known as B-trains measure the magnetic field in the main bending magnets in real-time, and transmit this signal for the control of the synchrotron’s RF accelerating cavities, magnet power converter and beam monitoring systems. This work presents an assessment of the capabilities and performance of the new FIRESTORM (Field In REal-time STreaming from Online Reference Magnets) system as part of the first phase of commissioning. [...]
2021 - 9 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 990 (2021) 164979 Fulltext: PDF;

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Veja também: nomes de autores similares
76	Buzio, M
3	Buzio, M.
1	Buzio, Marco Carlo Luigi

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