A multi-wavelength streaked optical pyrometer for dynamic shock compression measurements above 2500 K.
| Autor: | Opachich YP; Lawrence Livermore National Laboratory, Livermore, California 94551, USA., Crum RS; Lawrence Livermore National Laboratory, Livermore, California 94551, USA., Daene MW; Lawrence Livermore National Laboratory, Livermore, California 94551, USA., Dutra EC; Nevada National Security Site, Livermore, California 94551, USA., Mehta HN; University of California Irvine, Irvine, California 92617, USA., Shelton HL; Lawrence Livermore National Laboratory, Livermore, California 94551, USA., Watts P; Lawrence Livermore National Laboratory, Livermore, California 94551, USA., Akin MC; Lawrence Livermore National Laboratory, Livermore, California 94551, USA. |
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| Jazyk: | angličtina |
| Zdroj: | The Review of scientific instruments [Rev Sci Instrum] 2020 Mar 01; Vol. 91 (3), pp. 033108. |
| DOI: | 10.1063/1.5126123 |
| Abstrakt: | This article presents a concept and implementation of a calibrated streaked spectral pyrometer (SSP) temperature diagnostic used in dynamically driven shock experiments on a two-stage gas gun. This system relies upon measuring the total system response using a tunable monochromator, a NIST-traceable calibrated power meter, and a SSP. The diagnostic performance is validated against previously measured temperatures of shock driven z-cut quartz at 99 GPa and 93 GPa. The results are found to agree with the literature to within 5% and are discussed in this manuscript. The experimental setup utilizes measurements from multiple SSP systems per sample, providing several independent measurements and substantially increasing confidence in the extrapolated shock driven sample temperature. |
| Databáze: | MEDLINE |
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