High-Ti-concentration aerogels for bright x-ray sources

Technical Report · Mon Apr 22 04:00:00 EDT 2013

DOI:https://doi.org/10.2172/1078545· OSTI ID:1078545

Pérez, F. ^[1]; Patterson, J. R. ^[1]; May, M. ^[1]; Emig, J. ^[1]; Colvin, J. ^[1]; Biener, M. ^[1]; Wittstock, A. ^[1]; Satcher Jr., J. H. ^[1]; Gammon, S. A. ^[1]; Poco, J. F. ^[1]; Fujioka, S. ^[2]; Zhang, Z. ^[2]; Nishimura, H. ^[2]; Fournier, K. B. ^[1]

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1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
2. Osaka Univ., Suita (Japan)

Creating intense multi-keV x-ray sources is of great importance for several applications such as radiography of Inertial Confinement Fusion (ICF) plasma experiments and ablation studies. The objective here is to create nanosecond-long sources that are as bright as possible. Laser-heated targets of several types have been studied in the past; they contain mid-Z elements such as Ti, Fe or Ge to produce K-shell x rays with energies of a few keV. For instance, metal foils, pre-exploded foils, metal-doped aerogels, metal oxide nanofibers, and gas-filled targets can achieve from 1 to 10% laser-to-x-ray conversion efficiencies (CE).

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48; AC52-07NA27344
• OSTI ID: 1078545
• Report Number(s): LLNL--TR-635638
• Country of Publication: United States
• Language: English

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