三相X線発生装置の短時間特性について : 第1報 : 単相で初期投入を行う2段投入方式

概要

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On the three phase X-ray generators, we have many problems with its dynamic characteristics. One of them is linearity failure at very short exposure time. When exposure produced for the duration of tube voltage rise time and fall time is relatively greater compared with the exposure at the steady state of the tube voltage and can not be disregarded, the linearity between exposure time and total eexposure fails. This failure depends on the make and break mechanism of the generator's main circuit. In the first report, we have studied the linearity failure of a typical three phase diagnostic X-ray generator. The making meachanism of the main circuit is a two step method, where the initial pull-in is with the single phase of the primary voltage. If the allowable value of this linearity failure is 1.2 times to the ideal value, the sum of the durations of rise and fall time should be less than the exposure time.
社団法人日本放射線技術学会の論文
1983-09-01