We constructed a polarization spectrometer based on a laminar grating applied with a Mo/B4C multilayer coating. The multilayer-coated grating had been previously evaluated to have high polarizance at around 6.7 nm (184 eV) due to the Brewster reflection. In this study the polarization spectrometer was found to be usable in a range from 150 to 190 eV. Using it, σ and π emission spectra in the B 1s emission from a CrB2 single crystal were separately recorded for the first time in the soft x-ray region. The spectral feature of the emission was reasonably well reproduced by the band calculation.
- B 1s emission, σ emission, π Emission
- Multilayer grating
- Soft x-ray spectrometer
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics