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Updated: Jun 10, 2026
Measurement of X-ray Beam Coherence along Multiple Directions Using 2-D Checkerboard Phase Grating
Published on: October 11, 2016
Aberration properties of a Czerny-Turner spectrograph using plane-holographic diffraction grating
Abstract:
In this paper I discuss the construction and the aberration properties of plane-holographic diffraction gratings in a Czerny-Turner mounting. A ray-tracing scheme has been formulated for computing the aberrations of the system. It has been found that in the area near the recording wavelength for the holographic grating, the system has better resolution than does a conventional grating system. The design parameters of a medium-sized holographic grating spectrograph are specified. The performance of the spectrograph is evaluated by plotting spot diagrams, which show that astigmatic defects are much reduced.
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