X-ray pulse apparatus based on explosive electron emission
نویسنده
چکیده
One of the basic problems of the design of the portable x-ray devices for the works under the field conditions is to get smallest possible weight and the overall sizes. The classical apparatuses, which contain thermo-emission X-ray tube and source of constant high voltage as a rule have weight about 15-30 kg, which strongly impedes their use in the nonstationary conditions. In the proposed work are described pulse X-ray machines containing tube with the cold cathode on the base of explosive electron emission. It explains the essence of explosive electron emission and the basic principles of the construction of the pulse X-ray emitters containing the cold cathode tube and the source of its power, capable to form the pulses of high voltage with an amplitude of 100-300 kV and with the duration of 10 s. Specifically with this duration and this voltage appears the effect of explosive electron emission, which is accompanied by the intensive flash of X-radiation. In this work are also given the technical characteristics of pulse flaw detectors with general name of “ARINA” serially produced by “Spectroflash Ltd”, the major advantages of which are small overall sizes and weight, about 5-8 kgs.
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