1. Computer-Tomographic (CT) scanner, comprising: a source of X-radiation, X-ray detector ikompyuternuyu system operably coupled to the X-ray source and the X-ray detector and configured to perform the following steps: obtaining patient data size, establishing the desired noise equation wherein the target noise equation is a function of the size of the patient data iprimenenie target noise equation to the measured noise and the measured noise equation is a function of the size of the patient data for CT scanning parameters for the CT-skanirovaniya.2. The computer tomography scanner according to Claim. 1, wherein the step of applying the desired noise equation to the noise measured for CT scanning parameters for the CT scan includes the step of setting a target noise equation equal to the equation the noise measured for the size of the patient data and finding a parameter izlucheniya.3 dose. The computer tomography scanner according to claim. 2, wherein the parameter of the radiation dose includes mAh p.4. The computer tomography scanner according to claim. 3, wherein the target has noise equation vidgde c, Au b- empirically obtained constant and D- data patsienta.5 size. . The computer tomography scanner according to claim 1, wherein the data size Dpatsienta represent one of: the weight of the patient and the diameter of the water equivalent patsienta.6. . The computer tomography scanner according to claim 4, wherein the equation is measured noise vidgde c, c, r, c, r and c- empirically obtained constant and em - effective mA · p.7. computer
