Kabushiki Kaisha Toshiba;Toshiba Medical Systems Corporation
发明人:
Seiichirou Nagai
申请号：
US13924131
公开号：
US09213108B2
申请日:
2013.06.21
申请国别(地区):
US
年份:
2015
代理人:
摘要：
A photon counting type image detector has: a semiconductor cell that detects an X-ray photon； a charge amplifier that generates a plurality of electric pulses each being based on an electric charge collected in response to the detected X-ray photon； a comparator that discriminates a peak value of each of the electric pulses； a threshold logic circuit that performs control so as to count none of the peak-discriminated electric pulses corresponding to energy of characteristic X-rays produced in the semiconductor cell； and a counter that counts the discriminated electric pulses as controlled by the threshold logic circuit.
