Electric lamp and discharge devices – Cathode ray tube – Image pickup tube
Patent
1994-01-07
2000-11-14
O'Shea, Sandra
Electric lamp and discharge devices
Cathode ray tube
Image pickup tube
H01J 3150
Patent
active
061474460
ABSTRACT:
Disclosed is an improvement in image converter tubes that convert the X-ray image given by their input screen into a visible image. Stray glimmer develops on the insulators inside these tubes and the disclosure makes it possible to eliminate this glimmer by the deposition, on the insulators, of a thin layer of a product such as diamond-like carbon having a low secondary electron emission rate. Metal oxides are also suitable for this purpose. Application to image intensifiers.
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A.R. Nyaiesh, R.E. Kirby, F.K. King and E. L. Garwin "New radio frequency technique for deposition of hard carbon films"; 1985 Vacuum Society J. Vac. Sci. Technol. A3 (3), May/Jun. 1985; Pp. 610-613.
T.L. Bekker, J.A. Dayton, Jr., A.S. Gilmour, Jr., I.L. Krainsky, M.F. Rose, R. Rameshan, D. file, and G. Mearini "Observations of secondary electron emission from diamond films"IEEE, I.B. Johnson, Phys. Rev. 92, p.843(1953), IEDM 92-949 TO 92-952. 1992 (no month).
O'shea Sandra
Thomson Tubes Electroniques
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