IPAC2017 - List of Authors (Parrella, A.)

Paper	Title	Page
THPVA113	Inverse Problem-Based Magnetic Characterization of Weekly Magnetic Alloys	4722
SUSPSIK118	use link to see paper's listing under its alternate paper code
	A. Parrella, M.P. Ramos IT, Lisboa, Portugal P. Arpaia, A. Liccardo Naples University Federico II, Science and Technology Pole, Napoli, Italy M.C.L. Buzio CERN, Geneva, Switzerland
	Understanding the magnetic properties of materials used in accelerator components is becoming more and more important. For example, in the upcoming LHC upgrade at CERN, the increasing luminosity will boost the radiation dose received by the accelerator magnet's coil and consequently decrease its lifespan. Hence, a radiation shield with relative permeability less than 1.005 is required. The goal of this research is to design and validate a new method for characterizing weekly magnetic materials, suitable to be used in quality control of series production. The proposed method is based on inverse analysis approach coupled with a finite-element model. A material with unknown permeability is inserted in the air gap of a dipole magnet and the consequent perturbations of the dipole background flux density are measured. The magnetic permeability is then identified through gray-box inverse modelling, based on a finite-element approach. The results have been used to predict the magnetic impact of the radiation shield and develop further research on this subject.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA113
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Paper

Title

Page

THPVA113

Inverse Problem-Based Magnetic Characterization of Weekly Magnetic Alloys

4722

SUSPSIK118

use link to see paper's listing under its alternate paper code

A. Parrella, M.P. Ramos
IT, Lisboa, Portugal
P. Arpaia, A. Liccardo
Naples University Federico II, Science and Technology Pole, Napoli, Italy
M.C.L. Buzio
CERN, Geneva, Switzerland

Understanding the magnetic properties of materials used in accelerator components is becoming more and more important. For example, in the upcoming LHC upgrade at CERN, the increasing luminosity will boost the radiation dose received by the accelerator magnet's coil and consequently decrease its lifespan. Hence, a radiation shield with relative permeability less than 1.005 is required. The goal of this research is to design and validate a new method for characterizing weekly magnetic materials, suitable to be used in quality control of series production. The proposed method is based on inverse analysis approach coupled with a finite-element model. A material with unknown permeability is inserted in the air gap of a dipole magnet and the consequent perturbations of the dipole background flux density are measured. The magnetic permeability is then identified through gray-box inverse modelling, based on a finite-element approach. The results have been used to predict the magnetic impact of the radiation shield and develop further research on this subject.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA113

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)