In:
Review of Scientific Instruments, AIP Publishing, Vol. 78, No. 3 ( 2007-03-01)
Kurzfassung:
This article describes x-ray imaging with grazing-incidence microscopes, developed for the experimental program carried out on the Ligne d’Intégration Laser (LIL) facility [J. P. Le Breton et al., Inertial Fusion Sciences and Applications 2001 (Elsevier, Paris, 2002), pp. 856–862] (24kJ, UV—0.35nm). The design includes a large target-to-microscope (400–700mm) distance required by the x-ray ablation issues anticipated on the Laser MégaJoule facility [P. A. Holstein et al., Laser Part. Beams 17, 403 (1999)] (1.8MJ) which is under construction. Two eight-image Kirkpatrick-Baez microscopes [P. Kirkpatrick and A. V. Baez J. Opt. Soc. Am. 38, 766 (1948)] with different spectral wavelength ranges and with a 400mm source-to-mirror distance image the target on a custom-built framing camera (time resolution of ∼80ps). The soft x-ray version microscope is sensitive below 1keV and its spatial resolution is better than 30μm over a 2-mm-diam region. The hard x-ray version microscope has a 10μm resolution over an 800-μm-diam region and is sensitive in the 1–5keV energy range. Two other x-ray microscopes based on an association of toroidal/spherical surfaces (T/S microscopes) produce an image on a streak camera with a spatial resolution better than 30μm over a 3mm field of view in the direction of the camera slit. Both microscopes have been designed to have, respectively, a maximum sensitivity in the 0.1–1 and 1–5keV energy range. We present the original design of these four microscopes an d their test on a dc x-ray tube in the laboratory. The diagnostics were successfully used on LIL first experiments early in 2005. Results of soft x-ray imaging of a radiative jet during conical shaped laser interaction are shown.
Materialart:
Online-Ressource
ISSN:
0034-6748
,
1089-7623
Sprache:
Englisch
Verlag:
AIP Publishing
Publikationsdatum:
2007
ZDB Id:
209865-9
ZDB Id:
1472905-2
SSG:
11
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