In:
Journal of Instrumentation, IOP Publishing, Vol. 17, No. 02 ( 2022-02-01), p. P02025-
Abstract:
The Rayleigh-Taylor (RT) instability affects a vast range of
High Energy Density (HED) length scales, spanning from supernova explosions (10 13 m) to inertial confinement fusion
(10 -6 m). In inertial confinement fusion, the RT instability
is known to induce mixing or turbulent transition, which in turn cools the hot spot and hinders ignition. The fine-scale features of
the RT instability, which are difficult to image in HED physics, may help determine if the system is mixing or is transitioning to
turbulence. Earlier diagnostics lacked the spatial and temporal resolution necessary to diagnose the dynamics that occur along the
RT structure. A recently developed diagnostic, the Crystal Backlighter Imager (CBI), [1,2] can now produce an x-ray radiograph capable of resolving the fine-scale features expected in these RT unstable systems. This paper describes
an experimental design that adapts a well-characterized National Ignition Facility (NIF) platform to accommodate the CBI
diagnostic. Simulations and synthetic radiographs highlight the resolution capabilities of the CBI in comparison to previous
diagnostics. The improved resolution of the system can provide new observations to study the RT instability's involvement in mixing and
the transition to turbulence in the HED regime.
Type of Medium:
Online Resource
ISSN:
1748-0221
DOI:
10.1088/1748-0221/17/02/P02025
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2022
detail.hit.zdb_id:
2235672-1
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