Omega filter installed in the 1 MV microscope of Kyushu University

K. Omoto, K. Tsuno, M. Ohsaki, S. Matsumura, Y. Tomokiyo

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


A 1.25 MV high-voltage electron microscope with a B-type omega filter has been successfully installed at Kyushu University. An image detection chamber has been set inside a concrete block below the ground level without changing the frame structure for anti-vibration. Nearly the same design as that for the 200 kV microscope has been kept for the present omega filter except for its size. A new pre- and post-filter lens system with rotation-free imaging has been designed. Energy resolution, beam shape and stability of the filter have been measured. Some application data have been obtained to demonstrate the performance of the filter.

Original languageEnglish
Pages (from-to)666-675
Number of pages10
Issue number6
Publication statusPublished - Aug 2008

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Materials Science(all)
  • Physics and Astronomy(all)
  • Cell Biology


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