Sensor unit, radiation detector, method of manufacturing sensor unit, and method using sensor unit

A method of using a sensor unit for a radiation detector, the method comprising:

• providing a sensor unit comprising:
• a conversion element comprising a plurality of imaging pixels, each imaging pixel being configured to directly convert radiation into an electrical charge, each imaging pixel comprising a charge collection electrode, and the imaging pixels comprising first imaging pixels and second imaging pixels;
• and
• a readout substrate comprising a plurality of readout pixels arranged in a grid, each readout pixel being connected to an associated imaging pixel by means of an interconnection at a connection position on the charge collection electrode;
• wherein the second imaging pixels are shifted in a shifting direction relative to the first imaging pixels;
• and
• wherein the connection positions in relation to the charge collection electrodes are different between the first imaging pixels and the second imaging pixels;
• moving the sensor unit in a scanning direction substantially perpendicular to the shifting direction;
• generating electric signals responsive to radiation onto the imaging pixels;
• and
• sampling the electric signals at successive increments of movement of the sensor unit in the scanning direction equal to or less than a length of each imaging pixel in the scanning direction.

A sensor unit for a radiation detector, the sensor unit comprising:

• a plurality of means for directly converting radiation into an electrical charge divided into a plurality of first means for directly converting radiation into an electrical charge and a plurality of second means for directly converting radiation into an electrical charge, each means for directly converting radiation into an electrical charge including means for collecting charge;
• a plurality of means for reading out an electrical signal from an associated one of the means for directly converting radiation into an electrical charge;
• and
• a plurality of means for interconnecting each of the means for reading out an electrical signal to a connection position of the means for collecting charge of the associated one of the means for directly converting radiation into an electrical charge;
• wherein the second means for directly converting radiation into an electrical charge are shifted in a shifting direction relative to the first means for directly converting radiation into an electrical charge;
• and
• wherein the connection positions of the means for collecting charge are different between the first means for directly converting radiation into an electrical charge and the second means for directly converting radiation into an electrical charge.