The traditional X-ray tube adopts the hot cathode technology, but the hot cathode has many problems such as large volume, large weight, high energy consumption, short life, long electron emission modulation time due to many factors, and is affected by nuclear power ray detection. Very limited.
The so-called cold cathode refers to a cathode in an electron tube that emits electrons without heating. Generally, a cold cathode X-ray tube is produced by using a carbon nano-sized material having high conductivity and good field emission as a cold cathode, because of its small size. The advantages of light weight and small radiation dose have broad application prospects in nuclear power ray detection.
Principle of cold cathode technology
Cold cathode" refers to a cathode in an electron tube that emits electrons without heating, and a cold cathode X-ray tube is fabricated using a high conductivity field emission excellent material (carbon nano) as a cold cathode. The cold cathode X-ray machine is a conifer-type carbon nanostructure cold cathode tube developed by the principle of tip discharge.
Cold cathode vs. traditional hot cathode
Compared with traditional hot cathodes, carbon nano-cold cathode X-ray tubes have the outstanding advantage. Under relatively small vacuum, X-ray tubes based on carbon nanotube emission can be quickly digitized and have low power consumption. Small size, light weight, no need for preheating, no need for cooling, low power consumption, long life and so on.
Cold cathode digital ray imaging system
The cold cathode digital ray imaging system is composed of a cold cathode X-ray apparatus (transmitting module), a digital ray detector (acquisition module), an imaging software (operation module), a battery module, and the like. The digital ray flat panel detector adopts Leading Sight/S755, the phase element size is 120 μm, suitable for X/γ ray; the imaging software adopts Leading Sight Analysis 1.0, which is easy to operate, integrates image acquisition and processing; Battery module, long battery life.
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