電子ビームとCT手法による高周波磁場測定

概要

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This paper presents a stroboscopic electron beam tomography system for measuring the dynamic micromagnetic field of a recording head. A pulsed electron beam, which is synchronized with the recording head driver, is scanned along the recording head surface from all directions. The integration of the magnetic field intensity along the beam path is calculated from the electron beam deflection angle, and the intensity distribution of the dynamic magnetic field is calculated by using a tomographic reconstruction algorithm. The paper gives the results of measureing the high-frequency characteristics of thin-film heads.
社団法人日本磁気学会の論文
1998-05-01