Varied line-spacing plane grating monochromator for undulator beamline
- 1 February 1996
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 67 (2), 345-349
- https://doi.org/10.1063/1.1146621
Abstract
A varied line‐spacing plane grating monochromator is installed at an undulator beamline BL‐19B of the Photon Factory. Small contribution of aberrations to image sizes at a focal plane of the varied line‐spacing plane grating is calculated with use of an optical path function. The largest resolving power obtained from a ray tracing is estimated to be 4600 at a photon energy of 1239.85 eV and 10 000 at 91.2 eV. Gas absorption spectra show the similar extent of resolution obtained by the ray tracing. A high brightness with a high resolution may be realized in this monochromator.Keywords
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