Demonstration of x-ray fluorescence imaging of a high-energy-density plasma

Journal Article · Wed Jul 09 00:00:00 EDT 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4886388· OSTI ID:1893601

MacDonald, M. J. ^[1]; Keiter, P. A. ^[2]; Montgomery, D. S. ^[3]; Biener, M. M. ^[4]; Fein, J. R. ^[2]; Fournier, K. B. ^[4]; Gamboa, E. J. ^[1]; Klein, S. R. ^[2]; Kuranz, C. C. ^[2]; LeFevre, H. J. ^[2]; Manuel, M. J.-E. ^[2]; Streit, J. ^[5]; Wan, W. C. ^[2]; Drake, R. P. ^[2]

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1. University of Michigan, Ann Arbor, MI (United States); SLAC National Accelerator Laboratory, Menlo Park, CA (United States)
2. University of Michigan, Ann Arbor, MI (United States)
3. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
4. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
5. Schafer Corporation, Livermore, CA (United States)

We report experiments at the Trident Laser Facility have successfully demonstrated the use of x-ray fluorescence imaging (XRFI) to diagnose shocked carbonized resorcinol formaldehyde (CRF) foams doped with Ti. One laser beam created a shock wave in the doped foam. A second laser beam produced a flux of vanadium He-α x-rays, which in turn induced Ti K-shell fluorescence within the foam. Spectrally resolved 1D imaging of the x-ray fluorescence provided shock location and compression measurements. Additionally, experiments using a collimator demonstrated that one can probe specific regions within a target. These results show that XRFI is a capable alternative to path-integrated measurements for diagnosing hydrodynamic experiments at high energy density.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES); Defense Threat Reduction Agency (DTRA); National Science Foundation (NSF)
• Grant/Contract Number: AC52-07NA27344; NA0001840; DTRA-1-10-0077; 2013155705
• OSTI ID: 1893601
• Report Number(s): LLNL-JRNL-840370; 1061623; TRN: US2310207
• Journal Information: Review of Scientific Instruments, Vol. 85, Issue 11; ISSN 0034-6748
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English

Related Subjects

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