Determination of electron-heated temperatures of petawatt laser-irradiated foil targets with 256 and 68 eV extreme ultraviolet imaging

Journal Article · Mon Sep 15 00:00:00 EDT 2008 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2987683· OSTI ID:21266426

Ma, T ^[1]; MacPhee, A G; Key, M H; Hatchett, S P; Barbee, T W; Mackinnon, A J; Patel, P K ^[2]; Akli, K U; Stephens, R B ^[3]; Chen, C D ^[4]; Freeman, R R; Link, A; Offermann, D T; Ovchinnikov, V; Van Woerkom, L D ^[5]; King, J A; Beg, F N ^[1]; Zhang, B ^[6]

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1. University of California-San Diego, La Jolla, California 92093 (United States)
2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
3. General Atomics, San Diego, California 92186 (United States)
4. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
5. Ohio State University, Columbus, Ohio (United States)
6. University of California-Davis, Davis, California 95616 (United States)

Measurements of plasma temperature at the rear surface of foil targets due to heating by hot electrons, which were produced in short pulse high intensity laser matter interactions using the 150 J, 0.5 ps Titan laser, are reported. Extreme ultraviolet (XUV) imaging at 256 and 68 eV energies is used to determine spatially resolved target rear surface temperature patterns by comparing absolute intensities to radiation hydrodynamic modeling. XUV mirrors at these two energies were absolutely calibrated at the Advanced Light Source at the Lawrence Berkeley Laboratory. Temperatures deduced from both imagers are validated against each other within the range of 75-225 eV.

• OSTI ID: 21266426
• Journal Information: Review of Scientific Instruments, Vol. 79, Issue 9; Other Information: DOI: 10.1063/1.2987683; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
07 ISOTOPES AND RADIATION SOURCES
ADVANCED LIGHT SOURCE
ELECTRON TEMPERATURE
EV RANGE
EXTREME ULTRAVIOLET RADIATION
FOILS
IMAGES
ION TEMPERATURE
IRRADIATION
LASERS
LIGHT TRANSMISSION
MIRRORS
PETAWATT POWER RANGE
PLASMA
PLASMA DIAGNOSTICS
PLASMA HEATING
PULSES
SIMULATION
SURFACES