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Title: Simultaneous Raman and pyrometric temperature measurements in shock-wave-compressed toluene

Abstract

We fielded experiments to compare temperatures measured simultaneously by pyrometry and Raman spectroscopy in toluene shocked to 9 GPa. A 0.5 mm thick toluene sample was compressed between sapphire windows by plate impact from a gas gun. As the shock wave reverberated between the windows, the pressure increased stepwise to about 9 GPa. While the sample was near its peak pressure, we measured the Raman spectrum and determined temperature from the ratio of the Stokes and anti-Stokes intensities. Simultaneously, we measured the sample thermal radiance from the C-H vibration bands that occur between 3.2 and 3.6 μm to determine temperature pyrometrically. The pyrometer used a biased indium antimonide detector paired with a custom transimpedance amplifier, a system capable of temperature measurements as low as about 400 K. The Raman measurements gave a temperature of 530 ± 25 K in the bulk volume of toluene. Pyrometry gave a temperature of 496 + 15/-20 K, which is in reasonable agreement with the Raman measurement. Comparisons of this type are necessary to validate pyrometry as a temperature diagnostic in dynamic experiments.

Authors:
 [1];  [1];  [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1]
  1. Nevada National Security Site, Santa Barbara, CA (United States). Special Technologies Lab.
Publication Date:
Research Org.:
Nevada National Security Site, Las Vegas, NV (United States). Mission Support and Test Services LLC
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10)
OSTI Identifier:
1526084
Alternate Identifier(s):
OSTI ID: 1526041
Report Number(s):
DOE/NV/03624-0424
Journal ID: ISSN 0021-8979
Grant/Contract Number:  
NA0003624
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 125; Journal Issue: 22; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Raman spectroscopy; pyrometry; temperature; toluene; shock

Citation Formats

Capelle, G. A., Mance, J. G., Larson, E. D., La Lone, B. M., Stevens, G. D., Turley, W. D., and Veeser, L. R. Simultaneous Raman and pyrometric temperature measurements in shock-wave-compressed toluene. United States: N. p., 2019. Web. doi:10.1063/1.5096265.
Capelle, G. A., Mance, J. G., Larson, E. D., La Lone, B. M., Stevens, G. D., Turley, W. D., & Veeser, L. R. Simultaneous Raman and pyrometric temperature measurements in shock-wave-compressed toluene. United States. doi:10.1063/1.5096265.
Capelle, G. A., Mance, J. G., Larson, E. D., La Lone, B. M., Stevens, G. D., Turley, W. D., and Veeser, L. R. Fri . "Simultaneous Raman and pyrometric temperature measurements in shock-wave-compressed toluene". United States. doi:10.1063/1.5096265.
@article{osti_1526084,
title = {Simultaneous Raman and pyrometric temperature measurements in shock-wave-compressed toluene},
author = {Capelle, G. A. and Mance, J. G. and Larson, E. D. and La Lone, B. M. and Stevens, G. D. and Turley, W. D. and Veeser, L. R.},
abstractNote = {We fielded experiments to compare temperatures measured simultaneously by pyrometry and Raman spectroscopy in toluene shocked to 9 GPa. A 0.5 mm thick toluene sample was compressed between sapphire windows by plate impact from a gas gun. As the shock wave reverberated between the windows, the pressure increased stepwise to about 9 GPa. While the sample was near its peak pressure, we measured the Raman spectrum and determined temperature from the ratio of the Stokes and anti-Stokes intensities. Simultaneously, we measured the sample thermal radiance from the C-H vibration bands that occur between 3.2 and 3.6 μm to determine temperature pyrometrically. The pyrometer used a biased indium antimonide detector paired with a custom transimpedance amplifier, a system capable of temperature measurements as low as about 400 K. The Raman measurements gave a temperature of 530 ± 25 K in the bulk volume of toluene. Pyrometry gave a temperature of 496 + 15/-20 K, which is in reasonable agreement with the Raman measurement. Comparisons of this type are necessary to validate pyrometry as a temperature diagnostic in dynamic experiments.},
doi = {10.1063/1.5096265},
journal = {Journal of Applied Physics},
number = 22,
volume = 125,
place = {United States},
year = {2019},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1063/1.5096265

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