| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus, a radiation detector, and a readout method of electric signals of a radiation detector, by which a read out speed of electric signals read out from detecting elements is lowered to facilitate a circuit design and to realize reduction of electric signal noise . SOLUTION: An X-ray CT apparatus 20 comprises an X-ray generating unit 22 and a radiation detector 23. The radiation detector 23 includes a plurality of detecting elements put in two-dimensional positions and separated into a plurality of readout blocks, a readout circuit for reading out electric signals from the detecting elements in the respective readout blocks, a switch circuit 26 for switching the electric signals read out to the readout circuit from the detecting elements at the readout blocks, and a switch control circuit 27 for controlling the switch circuit 26 so that time-shared electric signals read out from detecting elements in a common readout block among readout blocks are read out to the readout circuit and electric signals from detecting elements in mutually different readout blocks are read out in parallel to the readout circuit. COPYRIGHT: (C)2006,JPO&NCIPI
|
