| 发明名称 |
PHOTON COUNTING CT APPARATUS |
| 摘要 |
According to one embodiment, a photon counting CT apparatus includes an X-ray source, a photon counting CT detector, and a calibration unit. The X-ray source includes a cathode configured to generate electrons and an anode including a plurality of targets configured to generate a plurality of characteristic X-rays having different energies. The photon counting CT detector detects X-ray photons generated by the X-ray source. The calibration unit calibrates the gain of the photon counting CT detector based on the correspondence relationship between the photon energies of the plurality of characteristic X-rays and outputs from the photon counting CT detector. |
| 申请公布号 |
US2015250444(A1) |
申请公布日期 |
2015.09.10 |
| 申请号 |
US201514633690 |
申请日期 |
2015.02.27 |
| 申请人 |
KABUSHIKI KAISHA TOSHIBA ;Toshiba Medical Systems Corporation |
发明人 |
TAMURA Emi |
| 分类号 |
A61B6/00 |
主分类号 |
A61B6/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A photon counting CT apparatus comprising:
an X-ray source including a cathode configured to generate electrons and an anode having a plurality of targets configured to generate a plurality of characteristic X-rays having different energies; a photon counting CT detector configured to detect X-ray photons generated by the X-ray source; and a calibration unit configured to calibrate a gain of the photon counting CT detector based on a correspondence relationship between photon energies of the plurality of characteristic X-rays and outputs from the photon counting CT detector. |
| 地址 |
Minato-ku JP |
