1980 年 9 巻 3 号 p. 165-169
The attainable value of RΩ (resolving power multiplied by the usable solid angle) obtained by the selective modulation interference spectrometer (S.M.I.S.) using two plane mirrors is estimated. It is shown that this spectrometer is superior to S.M.I.S. using other interferometers in the product RΩ by a factor 2.