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Mica windows for electronographic image tubes

J D McGee and D McMullan

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The curvature of and stress in rectangular and circular thin mica windows in a vacuum tube are analysed and it is shown that a circular window has advantages. A method of pressing an electron-sensitive Melinex-based emulsion against a circular window is described and the results of tests on actual windows are reported. Details are given of the method used for making a vacuum-tight seal between mica and chrome-iron.


PACS

84.47.+w Vacuum tubes

Subjects

Electronics and devices

Dates

Issue 1 (January 1969)

Received 19 August 1968



  1. Mica windows for electronographic image tubes

    J D McGee and D McMullan 1969 J. Phys. E: Sci. Instrum. 2 36

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