Open AccessNd-Fe-B MAGNETS UNDER ELECTRON IRRADIATION WITH THE ENERGY OF 23 MeV
Author(s) -
V.А. Bovda,
А. М. Бовда,
I.S. Guk,
А.N. Dovbnya,
V. Lyashchenko,
Andriy Mytsykov,
L.V. Onishchenko,
S. Kandybei,
О.А. Repikhov
Publication year - 2020
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2020-127-023
Subject(s) - bremsstrahlung , irradiation , tungsten , materials science , cathode ray , electron , magnet , magnetic field , saturation (graph theory) , electron beam processing , atomic physics , nuclear magnetic resonance , nuclear physics , physics , metallurgy , mathematics , quantum mechanics , combinatorics
Four Nd-Fe-B magnets underwent irradiation under 23 MeV electron beam. Nd-Fe-B magnets were magnetized to the technical saturation in the magnetic field of 3.5 T before electron treatment. Two Nd-Fe-B samples (1 and 2) were exposed to the direct electron beam with the energy of 23 MeV. Sample 2 was shielded by tungsten converter. The thickness of the tungsten converter was 4.72 mm. The absorbed dose for the samples was 16 GRad. Sample 3 was subjected to bremsstrahlung of electron irradiation with the energy of 23 MeV. Sample 4 was used as a reference sample for calibration and control measurements. While magnetic flux of sample under direct electron beam of 23 MeV was changed significantly, sample 2 showed the change of magnetic flux to a less degree. Magnetic performance of sample 3 corresponded closely to the initial state.