Laser plasma source for XUV calibration

Rene Benattar

doi:10.1117/12.134840

5 February 1992 Laser plasma source for XUV calibration

Rene Benattar

Proceedings Volume 1551, Ultrashort Wavelength Lasers; (1992) https://doi.org/10.1117/12.134840
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

We present a calibration system for X-UV (40 - 400 angstroms) instrumentation used in inertial confinement research. A small pulsed laser, 4 Joules, 4 nanoseconds in the green (0.54 mm wavelength), is focused onto solid targets of different materials such as aluminum or gold with a repetition rate of one every 30 seconds. The radiation given by the plasmas produced on these targets is selected by a monochromator made with a grazing incidence grating associated with a toroidal mirror. The grating is planar and its period per mm is slightly variable in order to record the spectra in a plane when working as a spectrograph. The selected radiation from the monochromator enters a vacuum vessel, in the center of which is put a goniometer (theta) /2(theta) . This goniometer measures the reflectivity of multilayer mirrors, using XRD diodes absolutely calibrated. The system measures the response of photocathodes of streak cameras working in the X-UV range and other photon detectors in the same range.

Citation Download Citation

Rene Benattar "Laser plasma source for XUV calibration", Proc. SPIE 1551, Ultrashort Wavelength Lasers, (5 February 1992); https://doi.org/10.1117/12.134840

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