Numerical modeling of Hohlraum radiation conditions: Spatial and spectral variations due to sample position, beam pointing, and Hohlraum geometry
نویسندگان
چکیده
منابع مشابه
Spectral distribution of laser-driven hohlraum radiation
The plasma physics group at GSI investigates among other issues the energy loss of heavy ions in laser produced plasma [1]. The current experimental setup consists of an ion beam from the UNILAC accelerator that penetrates a thin carbon foil which is irradiated by an intense laser beam, e.g. the nhelix or PHELIX laser. The foil is turned into a hot plasma while the ions pass through it and the ...
متن کاملTime- and spectrally resolved characterisation of laser-driven hohlraum radiation
The measurement of the energy loss of heavy ions in plasma is one of the research activities of the plasma physics group at GSI. In addition to the recent achievements [1] in the directly heated set-up where a carbon foil is irradiated by either one or two high energy lasers, nhelix and PHELIX, and probed by the ion beam the indirectly heated set-up has also made significant progress. In this s...
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A hohlraum is a cylindrical structure that holds a laser fusion target at the National Ignition Facility. It must be aligned properly for all the 192 laser beams to hit the target and cause a fusion reaction. Video images of the hohlraum are used to align the hohlraum to the required position. A matched filtering based approach is used to locate the circular alignment fiducial of the hohlraum. ...
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Radiative heating with x-rays is of large interest for dense hot matter studies. It allows to measure x-ray opacities, which are important for astrophysics, to obtain equation of state data by generating extremely uniform high-pressure shock waves or to investigate heavy ion stopping in ionized matter. To attain high spatial homogeneity of the generated plasmas in time intervals sufficiently lo...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2005
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.2146863