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Absolute calibration of the OMEGA streaked optical pyrometer for temperature measurements of compressed materials

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4968023· OSTI ID:1341873
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [3];  [3];  [3];  [3];  [3]
  1. Univ. of Rochester, Rochester, NY (United States); Laboratory for Laser Energetics, University of Rochester
  2. Univ. of Rochester, Rochester, NY (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Experiments in high-energy-density physics often use optical pyrometry to determine temperatures of dynamically compressed materials. In combination with simultaneous shock-velocity and optical-reflectivity measurements using velocity interferometry, these experiments provide accurate equation-of-state data at extreme pressures (P > 1 Mbar) and temperatures (T > 0.5 eV). This paper reports on the absolute calibration of the streaked optical pyrometer (SOP) at the Omega Laser Facility. The wavelength-dependent system response was determined by measuring the optical emission from a National Institute of Standards and Technology–traceable tungsten-filament lamp through various narrowband (40 nm-wide) filters. The integrated signal over the SOP’s ~250-nm operating range is then related to that of a blackbody radiator using the calibrated response. We present a simple closed-form equation for the brightness temperature as a function of streak-camera signal derived from this calibration. As a result, error estimates indicate that brightness temperature can be inferred to a precision of <5%.
Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Rochester, NY (United States)
Sponsoring Organization:
LLNL Laboratory Directed Research and Development (LDRD) Program; USDOE; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344; NA0001944
OSTI ID:
1341873
Alternate ID(s):
OSTI ID: 1333763
OSTI ID: 1376029
Report Number(s):
1316; LLNL-JRNL--698798; 2016-113; 2271; 1316
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 11 Vol. 87; ISSN 0034-6748; ISSN RSINAK
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (14)

Shock Waves in Materials Science book January 1993
Initial performance results of the OMEGA laser system journal January 1997
Melting temperature of diamond at ultrahigh pressure journal November 2009
Optical and x-ray streak camera gain measurements journal October 2004
Line-imaging velocimeter for shock diagnostics at the OMEGA laser facility journal November 2004
Streaked optical pyrometer system for laser-driven shock-wave experiments on OMEGA journal March 2007
High-precision measurements of the equation of state of hydrocarbons at 1–10 Mbar using laser-driven shock waves journal May 2010
Precision equation-of-state measurements on National Ignition Facility ablator materials from 1 to 12 Mbar using laser-driven shock waves journal May 2012
The Physics of Inertial Fusion book January 2004
Equation of state of CH 1.36 : First-principles molecular dynamics simulations and shock-and-release wave speed measurements journal September 2012
Dissociation of Liquid Silica at High Pressures and Temperatures journal July 2006
The streak camera development program at LLE
  • Jaanimagi, Paul A.; Boni, Robert; Butler, D.
  • 26th International Congress on High-Speed Photography and Photonics, SPIE Proceedings https://doi.org/10.1117/12.602565
conference March 2005
Phase Transformations and Metallization of Magnesium Oxide at High Pressure and Temperature journal November 2012
Shock compression of stishovite and melting of silica at planetary interior conditions journal January 2015

Cited By (6)

Refractive index and polarizability of polystyrene under shock compression journal May 2018
P3: An installation for high-energy density plasma physics and ultra-high intensity laser–matter interaction at ELI-Beamlines journal July 2017
Calibration and verification of streaked optical pyrometer system used for laser-induced shock experiments journal January 2019
Experimental evidence for superionic water ice using shock compression journal February 2018
Hugoniot, sound velocity, and shock temperature of MgO to 2300 GPa journal July 2019
Hugoniot and release measurements in diamond shocked up to 26 Mbar journal April 2017

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