The invention relates to a method for providing a medical image data set of a patient by means of an X-ray tube of a computer tomography system and has the following steps: determination of a plurality of X-ray tube current profiles of the X-ray tube in a control unit of the computer tomography system, the plurality of X-ray tube current profiles complying with a load limit of the X-ray tube, detection of first raw data of the patient according to the first x-ray tube current profile by means of the x-ray tube, at least one x-ray tube current profile parameter of the first x-ray tube current profile being adapted according to a functional parameter, - adjusting the second x-ray tube current profile in the control unit such that the second x-ray tube current profile as a function of the at least one adapted x-ray tube current profile parameter limits the load of the X-ray tube, - Acquisition of second raw data of the Pati according to the second adapted x-ray tube current profile by means of the x-ray tube, - reconstruction of the medical image data set of the imaging measurement according to the first raw data and the second raw data and - provision of the medical image data set of the patient
