Toroidal crystal spectrometer for dense plasma diagnostic

Francesca Pisani; Michel Koenig; Denis E. Desenne; Jean Michel Bruneau; Charles Reverdin; Tom A. Hall; Dimitri Batani; Jafar Al-Kuzee

doi:10.1117/12.283998

14 October 1997 Toroidal crystal spectrometer for dense plasma diagnostics

Francesca Pisani, Michel Koenig, Denis E. Desenne, Jean Michel Bruneau, Charles Reverdin, Tom A. Hall, Dimitri Batani, Jafar Al-Kuzee

Author Affiliations +

Proceedings Volume 3157, Applications of X Rays Generated from Lasers and Other Bright Sources; (1997) https://doi.org/10.1117/12.283998
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

A toroidal crystal spectrometer was designed with the purpose of measuring the aluminum K-absorption edge shift, in the wavelength range around 7.9 angstroms, in highly compressed matter. The expected shift is about 100 mA (approximately 20 eV). The x-ray reflected from the crystal are focused onto a streak camera slit of 16 mm high and 100 micrometers width, to obtain a time resolved spectrum. High resolution value and dispersion of about 1 angstrom/16 mm on the detection window is hence required. A crystal with a toroidal surface is used to enhance the focusing power in the spatial dimension as in the spectral one. Numerical simulations are performed by means of 1D and 2D codes for the determination of the crystal characteristics like the dimension and the curvature radius with respect to the geometric constraints. Some results will be presented concerning the obtained spectra.

Citation Download Citation

Francesca Pisani, Michel Koenig, Denis E. Desenne, Jean Michel Bruneau, Charles Reverdin, Tom A. Hall, Dimitri Batani, and Jafar Al-Kuzee "Toroidal crystal spectrometer for dense plasma diagnostics", Proc. SPIE 3157, Applications of X Rays Generated from Lasers and Other Bright Sources, (14 October 1997); https://doi.org/10.1117/12.283998

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