Blast wave energy diagnostic

The distance radiation waves that supersonically propagate in optically thick, diffusive media are energy sensitive. A blast wave can form in a material when the initially diffusive, supersonic radiation wave becomes transonic. Under specific conditions, the blast wave is visible with radiography as...

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Bibliographic Details
Published in:Review of scientific instruments 2008-10, Vol.79 (10), p.10E919-10E919-4
Main Authors: Tierney, Thomas E., Tierney, Heidi E., Idzorek, George C., Watt, Robert G., Peterson, Robert R., Peterson, Darrell L., Fryer, Christopher L., Lopez, Mike R., Jones, Michael C., Sinars, Daniel, Rochau, Gregory A., Bailey, James E.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CALORIMETERS
DETONATION WAVES
ENERGY
EXPLOSIONS
HYPERSONIC FLOW
PHOTOMETERS
RADIOMETERS
SUPERSONIC FLOW
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Summary:The distance radiation waves that supersonically propagate in optically thick, diffusive media are energy sensitive. A blast wave can form in a material when the initially diffusive, supersonic radiation wave becomes transonic. Under specific conditions, the blast wave is visible with radiography as a density perturbation. [ Peterson , Phys. Plasmas 13 , 056901 ( 2006 ) ] showed that the time-integrated drive energy can be measured using blast wave positions with uncertainties less than 10% at the Z Facility. In some cases, direct measurements of energy loss through diagnostic holes are not possible with bolometric and x-ray radiometric diagnostics. Thus, radiography of high compression blast waves can serve as a complementary technique that provides time-integrated energy loss through apertures. In this paper, we use blast waves to characterize the energy emerging through a 2.4 mm aperture and show experimental results in comparison to simulations.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.2992295