PROBLEM TO BE SOLVED: To provide an X-ray diagnostic system for decreasing a circuit scale by sharing an X-ray high voltage unit for supplying DC high voltage or a part of it with respect to an X-ray imaging part provided for a plurality of X-ray diagnostic apparatuses comprising the X-ray diagnostic system.SOLUTION: The X-ray diagnostic system 100 has N X-ray diagnostic apparatuses 1 and an X-ray high voltage unit 2 for supplying the X-ray diagnostic apparatuses 1 with DC high voltage. The X-ray high voltage unit 2 includes: a power adjustment part 23 for converting commercial power source into AC voltage that has a prescribed voltage value and frequency N high voltage generation parts 25 which are provided in association with the respective X-ray diagnostic apparatuses 1, and boost and rectify the AC voltage to generate DC high voltage a switch part 24 having a switching function for supplying a high voltage generation part 25 corresponding to the X-ray diagnostic apparatus with the AC voltage generated by the power adjustment part 23 on the basis of an X-ray radiation instruction signal supplied by any of the X-ray diagnostic apparatuses 1 and a timing pulse generation part 22 for generating a radiation timing pulse which determines X-ray radiation timing of the X-ray diagnostic apparatus 1 on the basis of the X-ray radiation instruction signal by putting the switch part 24 to an ON state.COPYRIGHT: (C)2011,JPO&INPIT【課題】X線高電圧ユニットの回路規模を低減する。【解決手段】X線診断システム100は、N個のX線診断装置1とX線診断装置1に対して直流高電圧を供給するX線高電圧ユニット2を有し、X線高電圧ユニット2は、商用電源を所定の電圧値と周波数を有する交流電圧に変換する電力調整部23と、X線診断装置1の各々に対応して設けられ前記交流電圧に対して昇圧と整流を行なって直流高電圧を生成するN個の高電圧発生部25と、電力調整部23が生成した交流電圧をX線診断装置1の何れかから供給されるX線照射指示信号に基づきこのX線診断装置に対応した高電圧発生部25に供給するスイッチング機能を有した切り替え部24と、切り替え部24をON状態にすることによりX線診断装置1のX線照射タイミングを決定する照射タイミングパルスを前記X線照射指示信号に基づいて生成するタイミングパルス生成部22を備えている。【選択図】 図1
