Inferred UV fluence focal-spot profiles from soft x-ray pinhole-camera measurements on OMEGA

Theobald, W.; Sorce, C.; Donaldson, W. R.; Epstein, R.; Keck, R. L.; Kellogg, C.; Kessler, T. J.; Kwiatkowski, J.; Marshall, F. J.; Sampat, S.; Seka, W.; Shah, R. C.; Shvydky, A.; Stoeckl, C.; Waxer, L. J.; Regan, S. P.

doi:10.1063/1.5120708

Title: Inferred UV fluence focal-spot profiles from soft x-ray pinhole-camera measurements on OMEGA

Journal Article · Wed Feb 05 00:00:00 EST 2020 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.5120708· OSTI ID:1598519

Theobald, W. ^[1]; Sorce, C. ^[1];

^[1];

^[1]; Keck, R. L. ^[1]; Kellogg, C. ^[1]; Kessler, T. J. ^[1]; Kwiatkowski, J. ^[1]; Marshall, F. J. ^[1]; Sampat, S. ^[1]; Seka, W. ^[1]; Shah, R. C. ^[1]; Shvydky, A. ^[1]; Stoeckl, C. ^[1]; Waxer, L. J. ^[1]; Regan, S. P. ^[1]

Univ. of Rochester, NY (United States). Lab. for Laser Energetics

A method was developed with laser-irradiated Au planar foils to characterize the focal spot of UV laser beams on target at full energy from soft x-ray emission. A pinhole camera with a back-thinned charge-coupled–device detector and filtration with thin Be and Al foil filters provides images of the x-ray emission at photon energies <2 keV. This method requires a careful measurement of the relation between the applied UV fluence and the x-ray signal, which can be described by a power-law dependence. The measured exponent γ ~ 2 provides a dynamic range of ~25 for the inferred UV fluence. UV fluence profiles of selected beams were measured for 100-ps and 1-ns laser pulses and were compared to directly measured profiles from an UV equivalent-target-plane diagnostic. The inferred spot size and super-Gaussian order from the x-ray technique agree within several percent with the values measured with the direct UV measurements.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

Research Organization:: Univ. of Rochester, NY (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003856

OSTI ID:: 1598519

Alternate ID(s):: OSTI ID: 1597538

Report Number(s):: 2019-242; 1548; 2505; 2019-242, 1548, 2505; TRN: US2103300

Journal Information:: Review of Scientific Instruments, Vol. 91, Issue 2; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 3 works

Citation information provided by
Web of Science

References (20)

Direct-drive-implosion experiments with enhanced fluence balance on OMEGA Marshall, F. J.; Delettrez, J. A.; Epstein, R. Physics of Plasmas, Vol. 11, Issue 1 https://doi.org/10.1063/1.1628234	journal	January 2004
Laser-direct-drive program: Promise, challenge, and path forward Campbell, E. M.; Goncharov, V. N.; Sangster, T. C. Matter and Radiation at Extremes, Vol. 2, Issue 2 https://doi.org/10.1016/j.mre.2017.03.001	journal	March 2017
The National Direct-Drive Inertial Confinement Fusion Program Regan, S. P.; Goncharov, V. N.; Sangster, T. C. Nuclear Fusion, Vol. 59, Issue 3 https://doi.org/10.1088/1741-4326/aae9b5	journal	December 2018
In-tank, on-shot characterization of the OMEGA laser system focal spot Waxer, Leon J.; Bauer, Katelynn; Cost, Emil High Power Lasers for Fusion Research V https://doi.org/10.1117/12.2506792	conference	March 2019
Reduction of laser imprinting using polarization smoothing on a solid-state fusion laser Boehly, T. R.; Smalyuk, V. A.; Meyerhofer, D. D. Journal of Applied Physics, Vol. 85, Issue 7 https://doi.org/10.1063/1.369702	journal	April 1999
A self-calibrating, multichannel streak camera for inertial confinement fusion applications Donaldson, W. R.; Boni, R.; Keck, R. L. Review of Scientific Instruments, Vol. 73, Issue 7 https://doi.org/10.1063/1.1482155	journal	July 2002
Mean energy required to produce an electron-hole pair in silicon for photons of energies between 50 and 1500 eV Scholze, F.; Rabus, H.; Ulm, G. Journal of Applied Physics, Vol. 84, Issue 5 https://doi.org/10.1063/1.368398	journal	September 1998
Direct-drive inertial confinement fusion: A review Craxton, R. S.; Anderson, K. S.; Boehly, T. R. Physics of Plasmas, Vol. 22, Issue 11 https://doi.org/10.1063/1.4934714	journal	November 2015
A picosecond beam-timing system for the OMEGA laser Donaldson, W. R.; Katz, J.; Huff, R. Review of Scientific Instruments, Vol. 87, Issue 5 https://doi.org/10.1063/1.4952440	journal	May 2016
Analysis of trends in experimental observables: Reconstruction of the implosion dynamics and implications for fusion yield extrapolation for direct-drive cryogenic targets on OMEGA Bose, A.; Betti, R.; Mangino, D. Physics of Plasmas, Vol. 25, Issue 6 https://doi.org/10.1063/1.5026780	journal	June 2018
National direct-drive program on OMEGA and the National Ignition Facility Goncharov, V. N.; Regan, S. P.; Campbell, E. M. Plasma Physics and Controlled Fusion, Vol. 59, Issue 1 https://doi.org/10.1088/0741-3335/59/1/014008	journal	October 2016
Three-dimensional modeling of the neutron spectrum to infer plasma conditions in cryogenic inertial confinement fusion implosions Weilacher, F.; Radha, P. B.; Forrest, C. Physics of Plasmas, Vol. 25, Issue 4 https://doi.org/10.1063/1.5016856	journal	April 2018
In situ characterization of high-intensity laser beams on OMEGA Forties, R. A.; Marshall, F. J. Review of Scientific Instruments, Vol. 76, Issue 7 https://doi.org/10.1063/1.1947782	journal	July 2005
Measurements of the ablation-front trajectory and low-mode nonuniformity in direct-drive implosions using x-ray self-emission shadowgraphy Michel, D. T.; Davis, A. K.; Armstrong, W. High Power Laser Science and Engineering, Vol. 3 https://doi.org/10.1017/hpl.2015.15	journal	January 2015
SPECT3D – A multi-dimensional collisional-radiative code for generating diagnostic signatures based on hydrodynamics and PIC simulation output MacFarlane, J. J.; Golovkin, I. E.; Wang, P. High Energy Density Physics, Vol. 3, Issue 1-2 https://doi.org/10.1016/j.hedp.2007.02.016	journal	May 2007
The single-line-of-sight, time-resolved x-ray imager diagnostic on OMEGA Theobald, W.; Sorce, C.; Bedzyk, M. Review of Scientific Instruments, Vol. 89, Issue 10 https://doi.org/10.1063/1.5036767	journal	October 2018
Publisher’s Note: Demonstration of Fuel Hot-Spot Pressure in Excess of 50 Gbar for Direct-Drive, Layered Deuterium-Tritium Implosions on OMEGA [Phys. Rev. Lett. 117 , 025001 (2016)] Regan, S. P.; Goncharov, V. N.; Igumenshchev, I. V. Physical Review Letters, Vol. 117, Issue 5 https://doi.org/10.1103/PhysRevLett.117.059903	journal	July 2016
Three-dimensional modeling of direct-drive cryogenic implosions on OMEGA Igumenshchev, I. V.; Goncharov, V. N.; Marshall, F. J. Physics of Plasmas, Vol. 23, Issue 5 https://doi.org/10.1063/1.4948418	journal	May 2016
A framed, 16-image Kirkpatrick–Baez x-ray microscope Marshall, F. J.; Bahr, R. E.; Goncharov, V. N. Review of Scientific Instruments, Vol. 88, Issue 9 https://doi.org/10.1063/1.5000737	journal	September 2017
The National Direct-Drive Program: OMEGA to the National Ignition Facility Regan, S. P.; Goncharov, V. N.; Sangster, T. C. Fusion Science and Technology, Vol. 73, Issue 2 https://doi.org/10.1080/15361055.2017.1397487	journal	December 2017

Similar Records

Beam-pointing verification using x-ray pinhole cameras on the 60-beam OMEGA laser

Journal Article · Mon Oct 17 00:00:00 EDT 2022 · Review of Scientific Instruments · OSTI ID:1598519

Stoeckl, C.; Cao, D.; Ceurvorst, L.; +4 more

Note: Diagnosing femtosecond laser-solid interactions with monochromatic K{sub {alpha}} imager and x-ray pinhole camera

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Review of Scientific Instruments · OSTI ID:1598519

Lin, X X; Li, Y T; Liu, F; +12 more

In situ characterization of high-intensity laser beams on OMEGA

Journal Article · Fri Jul 15 00:00:00 EDT 2005 · Review of Scientific Instruments · OSTI ID:1598519

Forties, R A; Marshall, F J

Related Subjects

47 OTHER INSTRUMENTATION

Title: Inferred UV fluence focal-spot profiles from soft x-ray pinhole-camera measurements on OMEGA

Citation Formats

References (20)

Similar Records

Related Subjects