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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 1,639 records · Page 91

Nonelectric cathode heating.

Vacuum tube with cathode heated directly by external radioisotope source, noting heat pipe providing isothermal heat transfer

Beggs, J. E.↗

Improved magnetron cold-cathode ion source

Cold cathode ionization source generates smaller amounts of spurious gases and has a higher sensitivity than commonly used hot-filament ion sources. Photon and X-ray background noise are reduced below detectable levels.

Roehrig, J.↗

Multilayer screen gives cathode ray tube high contrast

Fabrication method for cathode ray tubes uses low-cost siloxane resin formulations. The resins contain sufficient methyl or phenyl groups for solubility in organic solvents. After vaporization and baking, the polymerized material is stable under vacuum and under temperatures required for tube fabrication.

Bullinger, H.↗