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Rev Sci Instrum. 2012 Oct;83(10):10E521. doi: 10.1063/1.4732183.

A monochromatic x-ray imaging system for characterizing low-density foams.

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1
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. nlanier@lanl.gov

Abstract

In high energy density laser experiments, targets often require small, low-density, foam components. However, their limited size can preclude single component characterization, forcing one to rely solely on less accurate bulk measurements. We have developed a monochromatic imaging system to characterize both the density and uniformity of single component low-mass foams. This x-ray assembly is capable of determining line-averaged density variations near the 1% level, and provides statistically identical results to those obtained at the Brookhaven's NSLS. This system has the added benefit of providing two-dimensional density data, allowing an assessment of density uniformity.

PMID:
23127028
DOI:
10.1063/1.4732183
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