Coherent bremsstrahlung in ferrite observed by an analytical transmission electron microscope

T. Satoh, E. Otsuki, D. Shindo

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Energy dispersive X-ray spectra of ferrite were observed with an analytical transmission electron microscope (TEM) with the accelerating voltages from 100 to 300 kV, and coherent bremsstrahlung (CB) peaks have been investigated in detail. The energy and intensity of the CB peaks have been measured by changing the incident beam direction and the accelerating voltage. It was found that in addition to the shift of CB peaks to higher energy, the intensities of CB peaks generally tend to become higher with increasing the accelerating voltage. It was also found that the shapes in most CB peaks were asymmetrical and the intensities of CB peaks were generally different in each spectrum. The peak energy of CB basically agreed with the calculated values. Furthermore, it was pointed out that since the CB peaks could be confused with the characteristic X-ray peaks of small amounts of added elements such as Si and Ca in ferrite, it was necessary to analyse away from major zone axes.

    Original languageEnglish
    Pages (from-to)345-350
    Number of pages6
    JournalJournal of Electron Microscopy
    Volume47
    Issue number4
    DOIs
    Publication statusPublished - 1998 Jan 1

    Keywords

    • Analytical TEM
    • Coherent bremsstrahlung
    • Ferrite

    ASJC Scopus subject areas

    • Instrumentation

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