PURPOSE: To compensate completely effects resulting from the unevenness of a magnetic field in a nuclear magnetic resonance testing apparatus by using the intensity distribution in a visual field of the magnetostatic field or the resulting calculated results stored in a memory as compensating information.
CONSTITUTION: The data relating to the intensity distribution of a magnetostatic field or an inclined magnetic field in a visual field of a magnetostatic field or the results calculated from the data are stored in a memory 17. According to the stored content, a calculator 9 carries out a compensating operation for inverse projection data, for example, when the magnetostatic field is even and the inclined magnetic field is nonlinear. Thus the effects resulting from the unevenness of the magnetic field are compensated completely. In this way, the effects resulting from the unevenness of the magnetic field in the nuclear magnetic resonance testing apparatus are compensated completely, and the restructured image without a blur can be formed.
KURODA MASAO
KOUNO HIDEKI
