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Measurements on a number of cathode-ray tubes of widely different design confirm these predictions.
Obtained results have great practical value for design of cathode-ray equipment.
Of all the display devices which have been so far proposed, the cathode ray tube still offers a number of advantages of its own: high luminous efficiency, easy addressing a wide dynamic range of brightness, and a well-established manufacturing process.
This allows the implementation of almost every cathode material.
This method is useful for applications, such as field-emission lamps and x-ray tubes, which do not require nanofabricated cathode structures.
It is also pointed out that further miniaturization of field emission x-ray sources may need new concepts in designing the tube in shapes acting as ``self focusing'' structures for the electron beams.
The tonal gradation of the picture which the tube produces is satisfactory when viewed on modern cathode-ray tubes.
The unique combination of efficient cathode emission and hot injection possible in these devices suggests that a solid state analogue of the cathode ray tube may be realizable.
Proceedings ArticleDOI
Zhifei Wen, Rebecca Fahrig, Norbert J. Pelc 
05 Jun 2003
11 Citations
We conclude that fixed anode x-ray tubes can be used in a magnetic field although its desired electron optics must be fairly “straight” and the cathode-anode axis must be well aligned with the field.
Systematic comparison of many forms of tube counters reveals that the sensitivity to gamma‐radiation from a source of given strength and geometry, may be markedly increased (a) by increasing the effective area of the cathode by employing screen‐wire cathodes or grooved tube cathodes in place of solid smooth cathodes, and by using cathodes of high atomic number.

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