Accession Number : ADA609133


Title :   Blast Wave Experiments at Z


Descriptive Note : Conference paper


Corporate Author : LOS ALAMOS NATIONAL LAB NM


Personal Author(s) : Tierney, IV, T E ; Tierney, H E ; Watt, R G ; Idzorek, G C ; Peterson, R R ; Peterson, D L ; Lopez, M R ; Jones, M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a609133.pdf


Report Date : Jun 2007


Pagination or Media Count : 5


Abstract : Blast waves (BWs) form when the wave speed of an initially diffusive, supersonic radiation wave becomes subsonic and creates a radiographically-visible, hydrodynamic shock wave. BWs are a novel diagnostic in radiation-flow, code validation experiments that use Sandia s Z-accelerator s dynamic hohlraum (DH) as a radiative source. The physics models being tested are sensitive to delivered energy and power changes of better than 10%; therefore, precise in-situ radiative power and energy measurements are required for quantitative comparisons between simulation and experiment. The energy sensitive BW diagnostic complements bolometric and x-ray radiometric diagnostics in providing these measurements. Recent comparisons between BW qualification experiments and simulations have revealed a spatial dependence on the radiation source. We discuss the experimental design and sensitivities for the BW diagnostic and experimental results in comparison to simulations and other diagnostics.


Descriptors :   *BLAST WAVES , DIAGNOSIS(GENERAL) , RADIATION , SHOCK WAVES , VELOCITY


Subject Categories : Explosions


Distribution Statement : APPROVED FOR PUBLIC RELEASE