Temperature Determination in Shocked Quartz Using an Alternative Method of Dynamic Pyrometry Measurements

The temperature of shock-compressed z-cut quartz was determined at 99 and 93 GPa using a calibrated streaked spectral pyrometry system for use in high-pressure gas-gun experiments. The temperatures obtained are found to agree with the majority of previous literature values within 5%. Sensitivities to various error sources, including geometric corrections, response-measurement errors, and wavelength-assignment errors are discussed. The combined uncertainties due to these errors are estimated to be 0.7-1.1%, a substantial improvement over other methods which eliminates errors due to lower temperature calibration, and reinforces previous results at intermediate shock pressures.