Abstract
This research is devoted to investigating the properties of X-ray tube models with massive carbon cathode: field emission cathode in DC-mode and pulsed explosive emission cathodes. Construction of device with field emission cathode is described. It is able to operate at non-ultrahigh vacuum conditions. Two types of ring explosive emission cathodes were examined: metal-ceramic with slits (of a comb-shaped kind) and carbon-ceramic. The installation which makes it possible to investigate demountable models of pulsed X-ray tubes was designed. Experiments show better performance of carbon pulse cathode. It generates greater dose rate, possesses shorter current pulse, longer lifetime. Developed devices can be used in medicine, flaw detection, scientific researches and security systems.
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