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X-ray-imaging spectrometer (XRIS) for studies of residual kinetic energy and low-mode asymmetries in inertial confinement fusion implosions at OMEGA (invited)

Author(s)
Adrian, PJ; Bachmann, B; Betti, R; Birkel, A; Heuer, PV; Johnson, M Gatu; Kabadi, NV; Knauer, JP; Kunimune, J; Li, CK; Mannion, OM; Petrasso, RD; Regan, SP; Rinderknecht, HG; Stoeckl, C; Séguin, FH; Sorce, A; Shah, RC; Sutcliffe, GD; Frenje, JA; ... Show more Show less
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Abstract
<jats:p> A system of x-ray imaging spectrometer (XRIS) has been implemented at the OMEGA Laser Facility and is capable of spatially and spectrally resolving x-ray self-emission from 5 to 40 keV. The system consists of three independent imagers with nearly orthogonal lines of sight for 3D reconstructions of the x-ray emission region. The distinct advantage of the XRIS system is its large dynamic range, which is enabled by the use of tantalum apertures with radii ranging from 50 μm to 1 mm, magnifications of 4 to 35×, and image plates with any filtration level. In addition, XRIS is capable of recording 1–100’s images along a single line of sight, facilitating advanced statistical inference on the detailed structure of the x-ray emitting regions. Properties such as P0 and P2 of an implosion are measured to 1% and 10% precision, respectively. Furthermore, T<jats:sub> e</jats:sub> can be determined with 5% accuracy. </jats:p>
Date issued
2022-11-01
URI
https://hdl.handle.net/1721.1/146970
Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Journal
Review of Scientific Instruments
Publisher
AIP Publishing
Citation
Adrian, PJ, Bachmann, B, Betti, R, Birkel, A, Heuer, PV et al. 2022. "X-ray-imaging spectrometer (XRIS) for studies of residual kinetic energy and low-mode asymmetries in inertial confinement fusion implosions at OMEGA (invited)." Review of Scientific Instruments, 93 (11).
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