Nd-Fe-B MAGNETS UNDER ELECTRON IRRADIATION WITH THE ENERGY OF 23 MeV-Reference-Cited by-同舟云学术

Nd-Fe-B MAGNETS UNDER ELECTRON IRRADIATION WITH THE ENERGY OF 23 MeV

Published:2020-06-01 Issue: Volume: Page:23-27
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Container-title:Problems of Atomic Science and Technology
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Bovda V.A.,Bovda А.М.,Guk I.S.,Dovbnya A.N.,Lyashchenko V.N.,Mytsykov A.O.,Onishchenko L.V.,Каndybei S.S.,Repikhov О.А.

Abstract

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.

Publisher

Problems of Atomic Science and Technology

Reference12 articles.

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