Calibration of the IZMIRAN Spectromagnetograph

The method and devices for calibrating the new IZMIRAN spectromagnetograph with a polarization analyzer of the fully parallel type are presented. A through-calibration algorithm is described that helps obtain the Stokes matrices for each pixel of a CCD camera with allowance for the entire stack of optical elements. Problems of considering the background and aberrations are analyzed. The results of test measurements of magnetic fields and line-of-sight velocities of an active region are presented.