| 摘要 |
PURPOSE:To shorten a time and to set the capacity of a memory circuit to the necessary min. value, by generating not only the first address signal every step of scanning but also the second address signal corresponding to the bio- signal from an object to be examined and writing the data obtained from an X-ray detector at every step of scanning in the address indicated by each of the first and second address signals. CONSTITUTION:The angle of rotation of a disc 2 is detected by a rotation detector 6 and the angle signal thereof is sent to an address generating circuit 9 through an interface circuit 7. This address generating circuit 9 generates the address signal (x) corresponding to the inputted angle signal and the bio- signal of an object to be examined is amplified by a bio-signal amplifier 10. Said bio-signal is sent to a timer circuit 11 and the phase signal corresponding to the time from the predetermined phase of the bio-signal is formed and sent to an address generating circuit 12 to generate the address signal (Y) corresponding to the phase of the bio-signal. The X-ray transmission data sent to a memory 8 through the interface circuit 7 is written in the address indicated by both address signals X, Y. |
