On the effect of optical distortions of JINR magnetic spark spectrometer

The effect of optical distortions of spark chambers on the accuracy characteristics of the JINR Maqnetic Spark Spectrometer is analyzed. It is shown that accounting for these distortions decreases values of systematic deviations of spark coordinates in spectrometer chambers and a deep angle error value. The ratio between corresponding values before and after allowance for optical distortions equals about 0.5 for space coordinates and 0.75 for a deep angle, and the ratio between values of systematic and statistic errors about 0.25 for y and 0.5 for z-coordinates. The separation of contribution of errors due to inaccuracy reference mark reconstruction and incomplete allowance for t t tic error values of deen annl optical distortion permits in principle additionally U to decrease sys e a