Absolute calibration of the continuum x-ray spectrometer (ConSpec) at the National Ignition Facility
Abstract
We illustrate the absolute calibration of the continuum x-ray spectrometer (ConSpec), designed to measure the hot-spot electron temperature of inertial confinement fusion (ICF) implosions at the National Ignition Facility (NIF). The spectrometer measures emission from photon energies of 20 to 30 keV where opacity effects in ICF implosions at the NIF are negligible and provides spatial resolution to separate the hot-spot emission from other x-ray sources, such as the gold emission from the hohlraum wall. Using a combination of x-ray ray tracing and calibration data taken using a well characterized x-ray source, we measure the dispersion, spatial resolution, and absolute sensitivity of the instrument. Finally, we present an example spectrum measured at the NIF and demonstrate the ability to measure the hot-spot electron temperature with uncertainty under 10%.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1597605
- Report Number(s):
- LLNL-JRNL-790347
Journal ID: ISSN 1748-0221; 988027
- Grant/Contract Number:
- AC52-07NA27344; NA0001944; 18-ERD-015
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Instrumentation
- Additional Journal Information:
- Journal Volume: 14; Journal Issue: 12; Journal ID: ISSN 1748-0221
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; Plasma physics
Citation Formats
MacDonald, M. J., Kozioziemski, B., MacPhee, A. G., Schneider, M. B., Ayers, J., and Thorn, D. B. Absolute calibration of the continuum x-ray spectrometer (ConSpec) at the National Ignition Facility. United States: N. p., 2019.
Web. doi:10.1088/1748-0221/14/12/P12009.
MacDonald, M. J., Kozioziemski, B., MacPhee, A. G., Schneider, M. B., Ayers, J., & Thorn, D. B. Absolute calibration of the continuum x-ray spectrometer (ConSpec) at the National Ignition Facility. United States. https://doi.org/10.1088/1748-0221/14/12/P12009
MacDonald, M. J., Kozioziemski, B., MacPhee, A. G., Schneider, M. B., Ayers, J., and Thorn, D. B. Thu .
"Absolute calibration of the continuum x-ray spectrometer (ConSpec) at the National Ignition Facility". United States. https://doi.org/10.1088/1748-0221/14/12/P12009. https://www.osti.gov/servlets/purl/1597605.
@article{osti_1597605,
title = {Absolute calibration of the continuum x-ray spectrometer (ConSpec) at the National Ignition Facility},
author = {MacDonald, M. J. and Kozioziemski, B. and MacPhee, A. G. and Schneider, M. B. and Ayers, J. and Thorn, D. B.},
abstractNote = {We illustrate the absolute calibration of the continuum x-ray spectrometer (ConSpec), designed to measure the hot-spot electron temperature of inertial confinement fusion (ICF) implosions at the National Ignition Facility (NIF). The spectrometer measures emission from photon energies of 20 to 30 keV where opacity effects in ICF implosions at the NIF are negligible and provides spatial resolution to separate the hot-spot emission from other x-ray sources, such as the gold emission from the hohlraum wall. Using a combination of x-ray ray tracing and calibration data taken using a well characterized x-ray source, we measure the dispersion, spatial resolution, and absolute sensitivity of the instrument. Finally, we present an example spectrum measured at the NIF and demonstrate the ability to measure the hot-spot electron temperature with uncertainty under 10%.},
doi = {10.1088/1748-0221/14/12/P12009},
journal = {Journal of Instrumentation},
number = 12,
volume = 14,
place = {United States},
year = {Thu Dec 12 00:00:00 EST 2019},
month = {Thu Dec 12 00:00:00 EST 2019}
}
Web of Science
Works referenced in this record:
On the design of the NIF Continuum Spectrometer
conference, January 2018
- Thorn, Daniel B.; MacPhee, Andrew; Ayers, Jay J.
- Target Diagnostics Physics and Engineering for Inertial Confinement Fusion VI
The high velocity, high adiabat, “Bigfoot” campaign and tests of indirect-drive implosion scaling
journal, May 2018
- Casey, D. T.; Thomas, C. A.; Baker, K. L.
- Physics of Plasmas, Vol. 25, Issue 5
XOP v2.4: recent developments of the x-ray optics software toolkit
conference, September 2011
- Sánchez del Río, Manuel; Dejus, Roger J.
- SPIE Optical Engineering + Applications, SPIE Proceedings
Thermal Temperature Measurements of Inertial Fusion Implosions
journal, August 2018
- Jarrott, L. C.; Bachmann, B.; Ma, T.
- Physical Review Letters, Vol. 121, Issue 8
Hotspot electron temperature from x-ray continuum measurements on the NIF
journal, August 2016
- Jarrott, L. C.; Benedetti, L. R.; Chen, H.
- Review of Scientific Instruments, Vol. 87, Issue 11
Dilation x-ray imager a new/faster gated x-ray imager for the NIF
journal, October 2012
- Nagel, S. R.; Hilsabeck, T. J.; Bell, P. M.
- Review of Scientific Instruments, Vol. 83, Issue 10
System for calibrating the energy-dependent response of an elliptical Bragg-crystal spectrometer
journal, November 2014
- Marrs, R. E.; Brown, G. V.; Emig, J. A.
- Review of Scientific Instruments, Vol. 85, Issue 11
A new toroidal x-ray crystal spectrometer for the diagnosis of high energy density plasmas at the National Ignition Facility
journal, October 2018
- Bitter, M.; Hill, K. W.; Gao, Lan
- Review of Scientific Instruments, Vol. 89, Issue 10
X-ray penumbral imaging diagnostic developments at the National Ignition Facility
conference, September 2017
- Felker, Sean J.; Bachmann, Benjamin; Abu Shawareb, Hatim
- Target Diagnostics Physics and Engineering for Inertial Confinement Fusion VI
Investigating high speed phenomena in laser plasma interactions using dilation x-ray imager (invited)
journal, November 2014
- Nagel, S. R.; Hilsabeck, T. J.; Bell, P. M.
- Review of Scientific Instruments, Vol. 85, Issue 11
South pole bang-time diagnostic on the National Ignition Facility (invited)
journal, October 2012
- Edgell, D. H.; Bradley, D. K.; Bond, E. J.
- Review of Scientific Instruments, Vol. 83, Issue 10
Continuous Absorption
journal, January 1930
- Gaunt, J. A.
- Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 229, Issue 670-680
Cretin—a radiative transfer capability for laboratory plasmas
journal, October 2001
- Scott, Howard A.
- Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 71, Issue 2-6
Conical crystal spectrograph for high brightness x-ray Kα spectroscopy in subpicosecond laser–solid interaction
journal, June 2004
- Martinolli, E.; Koenig, M.; Boudenne, J. M.
- Review of Scientific Instruments, Vol. 75, Issue 6
A multi-cone x-ray imaging Bragg crystal spectrometer
journal, August 2016
- Bitter, M.; Hill, K. W.; Gao, Lan
- Review of Scientific Instruments, Vol. 87, Issue 11
Onset of Hydrodynamic Mix in High-Velocity, Highly Compressed Inertial Confinement Fusion Implosions
journal, August 2013
- Ma, T.; Patel, P. K.; Izumi, N.
- Physical Review Letters, Vol. 111, Issue 8
Continuum lowering – A new perspective
journal, December 2014
- Crowley, B. J. B.
- High Energy Density Physics, Vol. 13
X-ray continuum as a measure of pressure and fuel–shell mix in compressed isobaric hydrogen implosion cores
journal, February 2015
- Epstein, R.; Goncharov, V. N.; Marshall, F. J.
- Physics of Plasmas, Vol. 22, Issue 2
Resolving hot spot microstructure using x-ray penumbral imaging (invited)
journal, August 2016
- Bachmann, B.; Hilsabeck, T.; Field, J.
- Review of Scientific Instruments, Vol. 87, Issue 11
Pulse-dilation enhanced gated optical imager with 5 ps resolution (invited)
journal, October 2010
- Hilsabeck, T. J.; Hares, J. D.; Kilkenny, J. D.
- Review of Scientific Instruments, Vol. 81, Issue 10
An x-ray optic calibration facility for high energy density diagnostics
journal, October 2018
- Kozioziemski, B. J.; Ayers, J.; Bell, P.
- Review of Scientific Instruments, Vol. 89, Issue 10
Characterization of strongly-bent HAPG crystals for von-Hámos x-ray spectrographs
journal, October 2013
- Zastrau, U.; Woldegeorgis, A.; Förster, E.
- Journal of Instrumentation, Vol. 8, Issue 10
A focusing X-ray crystal spectrograph
journal, February 1984
- Hall, T. A.
- Journal of Physics E: Scientific Instruments, Vol. 17, Issue 2