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Platform Purpose The hohlraum energetics emulator experiments planned by the Hohlraum Integrated Experimental Team (IET) are the first cryogenic experiments in a series of sub-campaigns with the goal of establishing the hohlraum target for ignition experiments in 2010. The experiments require up to 192 beams smoothed with continuous phase plates (CPPs), smoothing by spectral dispersion (SSD), and polarization smoothing (PS).
In radiation thermodynamics , a hohlraum (a non-specific German word for a "hollow area" or "cavity") is a cavity whose walls are in radiative equilibrium with the radiant energy within the cavity. This idealized cavity can be approximated in practice by making a small perforation in the wall of a hollow container of any opaque material. The radiation escaping through such a perforation will be a good approximation to blackbody radiation at the temperature of the interior of the container.
The concept of a radiation temperature (Trad) and of the transport of radiation arises from a logical extension of the familiar concepts of heat emission from a thermally warm object.
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