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X-ray imaging of cryogenic deuterium-tritium layers in a beryllium shell

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8 Author(s)
Kozioziemski, B.J. ; Lawrence Livermore National Laboratory, Livermore, California 94551 ; Sater, J.D. ; Moody, J.D. ; Sanchez, J.J.
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Solid deuterium-tritium (D-T) fuel layers inside copper-doped beryllium shells are robust inertial confinement fusion fuel pellets. This paper describes the first characterization of such layers using phase-contrast x-ray imaging. Good agreement is found between calculation and experimental contrast at the layer interfaces. Uniform solid D-T layers and their response to thermal asymmetries were measured in the Be(Cu) shell. The solid D-T redistribution time constant was measured to be 28 min in the Be(Cu) shell.

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Journal of Applied Physics  (Volume:98 ,  Issue: 10 )