Patent attributes
According to one embodiment, a photon-counting apparatus includes an X-ray tube, an X-ray detector, a support mechanism, setting circuitry and data acquisition circuitry. The X-ray detector is configured to repetitively detect an X-ray photon generated by the X-ray tube, and repetitively generate an electrical signal corresponding to the repetitively detected X-ray photon. The support mechanism is configured to support the X-ray tube to be rotatable about a rotation axis. Setting circuitry configured to set one of a time length of a readout period and a readout cycle per unit time for the electrical signal. Data acquisition circuitry is configured to count a count number of electrical signals from the X-ray detector in accordance with the set one of the time length and readout cycle.
