A tomography system includes a first radiation source and a first detector that is assigned to the first radiation source. The tomography system also includes a second radiation source and a second detector that is assigned to the second radiation source. The tomography system is prepared to perform a scan. In a first plane of rotation, the first detector is guided along a first circular segment-shaped path. In a second plane of rotation, the second detector is guided in synchrony along a second circular segment-shaped path. The tomography system is configured to obtain a first data record with the first detector and a second data record with the second detector. The first plane of rotation and the second plane of rotation are arranged at a distance from one another.

Systems and methods include determination of a first time-of-flight offset for each of a plurality of crystals based on first annihilation radiation received by the plurality of crystals, determination of a second time-of-flight offset for each of the plurality of crystals based on radiation emitted by the plurality of crystals, determination, based on the second time-of-flight offsets, of a third time-of-flight offset for each of the plurality of crystals and associated with a response of the plurality of crystals to annihilation radiation, determination of whether the third time-of-flight offsets exceed a threshold, and, in response to a determination that the third time-of-flight offsets exceed the threshold, determine a fourth time-of-flight offset for each of the plurality of crystals based on second annihilation radiation received by the plurality of crystals.

A data processing method for static computed tomography scanning and a device are provided. The data processing method for static CT scanning includes: performing, in response to receiving a beam synchronization pulse signal, a time synchronization on N angle pulse signals and a time synchronization on N belt pulse signals by using the beam synchronization pulse signal, to obtain N synchronization angle pulse signals and N synchronization belt pulse signals, respectively; generating N timestamps based on the N synchronization angle pulse signals and the N synchronization belt pulse signals, where the N timestamps correspond to N scanning imaging systems of a static CT scanning device, respectively, and each of the N timestamps includes angle data and belt data; and packaging beam data, detection data, the angle data, and the belt data corresponding to each of the N scanning imaging systems to obtain N data packets.

An X-ray image capture system includes an X-ray source, an X-ray detector that includes a plurality of X-ray line sensors where respective X-ray detection elements are arranged in a one-dimensional manner with respect to a horizontal direction and respective X-ray detection element groups are arranged to be back-to-back or front-to-front and a collimator that is provided on end parts of the plurality of X-ray line sensors that face the X-ray source, a signal processing circuit that processes a measurement signal that is measured by the X-ray detector to produce an X-ray transmission image, and a driving control mechanism that moves the X-ray detector in upward and downward directions and rotates the X-ray detector around an axis in pixel pitch directions of the X-ray line sensors in association with movement of the X-ray detector to tilt the X-ray detector with respect to a horizontal plane.

This disclosure relates to the field of X-ray based medical imaging technology, providing a method, device, and CT scanning imaging system for spectral CT imaging, which may improve the efficiency of reconstructed images. In this disclosure, after obtaining multiple data frames collected by the detector, each data frame is cached in energy segments and stored in memory; Read the data frames required for image reconstruction from memory or disk; Obtain reconstructed images using the read data frames.