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Updated: Jun 13, 2026

Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic

Applying X-ray Imaging Crystal Spectroscopy for Use as a High Temperature Plasma Diagnostic

Published on: August 25, 2016

Imaging x-ray spectrometer for laser fusion applications.

N M Ceglio¹, A M Hawryluk, R H Price

¹University of California, Lawrence LivermoreNational Laboratory, P.O. Box 808, Livermore, California 94550, USA.

|April 17, 2010

Summary

A novel imaging x-ray spectrometer combines a gold transmission grating with a grazing-incidence microscope. This advanced instrument achieves high spatial resolution and a broad spectral range for laser-fusion research.

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Area of Science:

Physics
X-ray Optics
Spectroscopy

Background:

Grazing-incidence microscopes are essential for high-resolution X-ray imaging.
Transmission gratings offer spectral analysis capabilities.
Combining these technologies presents opportunities for enhanced performance.

Purpose of the Study:

To develop an imaging X-ray spectrometer with unprecedented spatial resolution, spectral range, and collection solid angle.
To integrate a gold transmission grating with a Wolter-design grazing-incidence reflection X-ray microscope.
To evaluate the performance of the coupled instrument for X-ray spectroscopy.

Main Methods:

Coupling a gold transmission grating to a Wolter-design grazing-incidence reflection X-ray microscope.
Conducting test experiments in the 1.75–2 keV energy range.
Measuring spectral resolving power and one-dimensional spatial resolution.

Main Results:

Achieved a spectral resolving power (lambda/Deltalambda) of 200.
Demonstrated a one-dimensional spatial resolution of 1 micrometer.
The instrument features a large collection solid angle (approx. 2 x 10^-5 sr) and a broad spectral range (near UV to 3.2 keV).

Conclusions:

The coupled instrument represents a significant advancement in imaging X-ray spectroscopy.
The high spatial resolution and broad spectral range make it highly versatile for laser-fusion applications.
This novel spectrometer opens new possibilities for X-ray microscopy and spectral analysis.