Grazing incidence off Rowland spectrometer with shifted slit

Abstract

The article presents the analysis of the scheme of grazing incidence spectrometer with the normal to the line of site registration of the spectrum. The scheme is intended for the usage of the micro channel plate assembly as a spectrum detector. The main feature is the displacement of the entrance slit from the Rowland circle. The results of the experimental test of the spectral resolution (λ/δλ around 200) are presented and compared with the theoretical estimations.