| 摘要 |
<p>PURPOSE:To allow the sampling timing of a living body signal of pressure in the heart, etc., to coincide exactly with a recording time point of each image by generating a living body signal sampling pulse by a time phase of substantial half of an X-ray exposure pulse and executing the sampling of the living body signal. CONSTITUTION:A read-in instruction generating circuit 14 is operated, when a signal is applied from a digital signal processor 7. An X-ray exposure signal applied to an X-ray high voltage device 5 from an X-ray controller 4 is sent to the digital signal processor 7, as well, and this digital signal processor 7 detects the time of half s pulse width of its X-ray exposure signal or the time for halving an integral area of a waveform of a single X-ray exposure signal containing a wave tail, as well, and sends the signal to the read-in instruction generating circuit 14 at that time. The read-in instruction generating circuit 14 generates a read-in instruction in accordance with its signal, and can generate the read-in instruction which rises at such a timing as just halving the X-ray exposure signal.</p> |
