Method for controlling a x-ray imaging device, x-ray imaging device, computer program and electronically readable storage medium

An x-ray imaging device, comprising:

• an x-ray source;
• a photon counting detector;
• and
• a controller configured to cause the x-ray imaging device to,
• determine at least one input parameter relating to at least one of an attenuation property of a patient or a purpose of image acquisition,
• determine at least one operation parameter of the photon counting detector using an algorithm for increased image quality, the algorithm based on the at least one input parameter,
• calculate a contrast to noise ratio from the at least one input parameter and at least one candidate parameter for the operation parameter using a model trained by machine learning, and
• perform the image acquisition using the at least one operation parameter determined or adapted.