TY - JOUR N2 - This paper deals with an inverse magnetostatic problem related to the reconstruction of a permanent magnet encapsulated inside the cathode of a magnetron sputtering device. The numerical analysis is aimed to obtain the estimation of a short solenoid equivalent to the unknown magnet. Least squares approach has been used to solve the functional defined as squared sum of the residuals. A comparison of the results obtained with Genetic Algorithm approach and nonlinear system of equations is performed. A regularized solution, which is in good agreement with the experimental data, was found by applying a Newton adapted regularization technique. L1 - http://www.czasopisma.pan.pl/Content/84578/PDF/04_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/84578 PY - 2011 IS - No 4 December EP - 444 DO - 10.2478/v10171-011-0036-1 KW - solenoid model KW - nonlinear problem KW - numerical methods KW - least squares A1 - Miron, O. A1 - Desideri, D. A1 - Micu, D.D. A1 - Maschio, A. A1 - Ceclan, A. A1 - Czumbil, L. PB - Polish Academy of Sciences VL - vol. 60 DA - 2011 T1 - Estimation of an equivalent short solenoid model using different numerical methods SP - 433 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/84578 T2 - Archives of Electrical Engineering ER -