Spatially resolved X-ray spectroscopy using a flat HOPG crystal

A novel design of a 1-D imaging X-ray spectrometer is implemented, using a high efficiency HOPG (highly oriented pyrolitic graphite) Bragg crystal and a double-entrance-slit. The double slit provides self-calibration of the imaging magnification. The spatial and spectral resolutions and dispersion a...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2011-10, Vol.653 (1), p.145-149
Main Authors: Yuan, X.H., Carroll, D.C., Coury, M., Gray, R.J., Brenner, C.M., Lin, X.X., Li, Y.T., Quinn, M.N., Tresca, O., Zielbauer, B., Neely, D., McKenna, P.
Format: Article
Language:English
Subjects:
Accelerators
Dispersions
Graphite
Imaging
Laser plasma interaction
Mathematical analysis
Slits
Spectrometers
X-ray spectroscopy
X-rays
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Summary:A novel design of a 1-D imaging X-ray spectrometer is implemented, using a high efficiency HOPG (highly oriented pyrolitic graphite) Bragg crystal and a double-entrance-slit. The double slit provides self-calibration of the imaging magnification. The spatial and spectral resolutions and dispersion are characterised both analytically and by ray tracing simulations. A key feature of this approach is that it enables the X-ray spectrum to be measured over different regions of the plasma source. The application of this instrument is demonstrated in high intensity laser–foil interaction experiments.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2010.12.147