Abstract

1. IntroductionSoft-magnetic metallic glasses are considered for mag-netic cores of accelerator radio-frequency (RF) cavities.In this particular application, they are exposed to ionirradiation, which alters their magnetic properties. Theradiation eld is rather complex (dierent particles, en-ergies and uences) because it originates from interactionof lost primary heavy ions with the beam-pipe producingdierent secondary particles. That is why a systematicstudy of the in uence of ion irradiation on magnetic prop-erties of the soft-magnetic metallic glasses is important.Our study is connected to the AIRF project [1]. Hav-ing some experience with neutron- and laser-irradiationof dierent metallic glasses [2, 3], we started with lightions [4, 5]. However, the data for light ions cannotbe extrapolated to heavy ions, because the mechanismof radiation damage is qualitatively dierent for lightvs. heavy ions [6]. The recent work covers a,T Auand U ions irradiating ribbons of VITRAOCV

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