A framed, 16-image Kirkpatrick–Baez x-ray microscope

Marshall, F. J.; Bahr, R. E.; Goncharov, V. N.; Glebov, V. Yu.; Peng, B.; Regan, S. P.; Sangster, T. C.; Stoeckl, C.

doi:10.1063/1.5000737

Title: A framed, 16-image Kirkpatrick–Baez x-ray microscope

Journal Article · 08 September 2017 · Review of Scientific Instruments

DOI: https://doi.org/10.1063/1.5000737 · OSTI ID:1394625

Marshall, F. J. ^[1]; Bahr, R. E. ^[1]; Goncharov, V. N. ^[1]; Glebov, V. Yu. ^[1];

^[1]; Regan, S. P. ^[1];

^[1]; Stoeckl, C. ^[1]

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

A 16-image Kirkpatrick–Baez (KB)–type x-ray microscope consisting of compact KB mirrors has been assembled for the first time with mirrors aligned to allow it to be coupled to a high-speed framing camera. The high-speed framing camera has four independently gated strips whose emission sampling interval is ~30 ps. Images are arranged four to a strip with ~60-ps temporal spacing between frames on a strip. By spacing the timing of the strips, a frame spacing of ~15 ps is achieved. A framed resolution of ~6-um is achieved with this combination in a 400-um region of laser–plasma x-ray emission in the 2- to 8-keV energy range. A principal use of the microscope is to measure the evolution of the implosion stagnation region of cryogenic DT target implosions on the University of Rochester’s OMEGA Laser System. The unprecedented time and spatial resolution achieved with this framed, multi-image KB microscope have made it possible to accurately determine the cryogenic implosion core emission size and shape at the peak of stagnation. In conclusion, these core size measurements, taken in combination with those of ion temperature, neutron-production temporal width, and neutron yield allow for inference of core pressures, currently exceeding 50 GBar in OMEGA cryogenic target implosions.

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

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

Contributing Organization:: Laboratory for Laser Energetics, University of Rochester

Grant/Contract Number:: NA0001944

OSTI ID:: 1394625

Alternate ID(s):: OSTI ID: 1380056

Report Number(s):: 2016-243, 1351; 2016-243, 1351

Journal Information:: Review of Scientific Instruments, Vol. 88, Issue 9; ISSN 0034-6748

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

Country of Publication:: United States

Language:: English

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Cited by: 28 works

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References (19)

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Cited By (7)

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
Note: Tandem Kirkpatrick–Baez microscope with sixteen channels for high-resolution laser-plasma diagnostics Yi, Shengzhen; Zhang, Zhe; Huang, Qiushi Review of Scientific Instruments, Vol. 89, Issue 3 https://doi.org/10.1063/1.5019206	journal	March 2018
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
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
Development of an adjustable Kirkpatrick-Baez microscope for laser driven x-ray sources Zeraouli, G.; Gatti, G.; Longman, A. Review of Scientific Instruments, Vol. 90, Issue 6 https://doi.org/10.1063/1.5091103	journal	June 2019
Inferred UV fluence focal-spot profiles from soft x-ray pinhole-camera measurements on OMEGA Theobald, W.; Sorce, C.; Donaldson, W. R. Review of Scientific Instruments, Vol. 91, Issue 2 https://doi.org/10.1063/1.5120708	journal	February 2020
Development of an adjustable Kirkpatrick-Baez microscope for laser driven x-ray sources at CLPU Zeraouli, G.; gatti, G.; Longman, A. arXiv https://doi.org/10.48550/arxiv.1811.04762	text	January 2018

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