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Figure 1
Images of the cathode-grid assembly and a cross-sectional view. The cathode, of diameter 2 mm, is located on the white ceramic insulator (left). The aperture grid is threaded into the top of a stem (right). The sectional drawing of the cathode-grid assembly shows the detailed structure of the electron gun (bottom).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 15| Part 3| May 2008| Pages 258-261
https://doi.org/10.1107/S0909049507066769
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