ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
We have developed a time-resolved imaging capability to make measurements of the emission profile or spot size for low density foam z-pinch targets on the Saturn accelerator. By lens-coupling visible emission from the z-pinch target to an array of fiber optics, we obtained an emission profile as a function of time with radial resolution of 200 μm. To measure the emission at temperatures greater than (approximate)40 eV, x rays from the source were slit-imaged or pinhole-imaged onto a scintillator. The emission was filtered to select 50–80, 200–280, and 400–450 eV x rays. Nonuniformities were observed in both visible and x-ray emissions for solid foam targets. For wire array on foam targets, on-axis x-ray emission-spot implosion velocities calculated for the three spectral regions differed from the mass-implosion velocity. We describe the diagnostics, the image-unfold process, and results from the instrument for both visible and x-ray measurements. © 1997 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1147593
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