Abstract
A Jarrell-Ash 0.27-m triple grating spectrometer with a high-speed intensified diode array detector has been used to perform time-resolved surveys of the visible emission (2200-7000 Å) from the OHTE plasma. Using a 512 diode array, spectra are obtained every 516 μs during the shot. The spectral width of the scan is 150, 300, or 1200 Å depending on the grating selected. Surveys at up to 500 kA for OHTE plasmas indicate a complete absence of metal emission lines with the graphite bead vacuum liner. In the 5200-Å region, a clear iindow has been identified for optical bremsstrahlung measurements. Other details of the spectra will be discussed.
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