eHXI: A permanently installed, hard x-ray imager for the National Ignition Facility

Doppner, T.; Bachmann, B.; Albert, F.; Bell, P.; Burns, S.; Celeste, J.; Chow, R.; Divol, L.; Dewald, E. L.; Hohenberger, M.; Izumi, N.; LaCaille, G.; Landen, O. L.; Palmer, N.; Park, H. -S.; Thomas, C. A.; Huntington, C.

doi:10.1088/1748-0221/11/06/P06010

Title: eHXI: A permanently installed, hard x-ray imager for the National Ignition Facility

Journal Article · Tue Jun 14 00:00:00 EDT 2016 · Journal of Instrumentation

DOI:https://doi.org/10.1088/1748-0221/11/06/P06010· OSTI ID:1260501

Doppner, T. ^[1]; Bachmann, B. ^[1]; Albert, F. ^[1]; Bell, P. ^[1]; Burns, S. ^[1]; Celeste, J. ^[1]; Chow, R. ^[1]; Divol, L. ^[1]; Dewald, E. L. ^[1]; Hohenberger, M. ^[2]; Izumi, N. ^[1]; LaCaille, G. ^[3]; Landen, O. L. ^[1]; Palmer, N. ^[1]; Park, H. -S. ^[1]; Thomas, C. A. ^[1]; Huntington, C. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Univ. of Rochester, Rochester, NY (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States)

We have designed and built a multi-pinhole imaging system for high energy x-rays (≥ 50 keV) that is permanently installed in the equatorial plane outside of the target chamber at the National Ignition Facility (NIF). It records absolutely-calibrated, time-integrated x-ray images with the same line-of-sight as the multi-channel, spatially integrating hard x-ray detector FFLEX [McDonald et al., Rev. Sci. Instrum. 75 (2004) 3753], having a side view of indirect-drive inertial confinement fusion (ICF) implosion targets. The equatorial hard x-ray imager (eHXI) has recorded images on the majority of ICF implosion experiments since May 2011. Lastly, eHXI provides valuable information on hot electron distribution in hohlraum experiments, target alignment, potential hohlraum drive asymmetries and serves as a long term reference for the FFLEX diagnostics.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1260501

Report Number(s):: LLNL-JRNL-685858

Journal Information:: Journal of Instrumentation, Vol. 11, Issue 06; ISSN 1748-0221

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 14 works

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References (28)

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Cited By (6)

Maintaining low-mode symmetry control with extended pulse shapes for lower-adiabat Bigfoot implosions on the National Ignition Facility Hohenberger, M.; Casey, D. T.; Thomas, C. A. Physics of Plasmas, Vol. 26, Issue 11 https://doi.org/10.1063/1.5121435	journal	November 2019
High-energy (>70 keV) x-ray conversion efficiency measurement on the ARC laser at the National Ignition Facility Chen, Hui; Hermann, M. R.; Kalantar, D. H. Physics of Plasmas, Vol. 24, Issue 3 https://doi.org/10.1063/1.4978493	journal	March 2017
Examining the radiation drive asymmetries present in the high foot series of implosion experiments at the National Ignition Facility Pak, A.; Divol, L.; Kritcher, A. L. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4979192	journal	May 2017
X-ray penumbral imaging diagnostic developments at the National Ignition Facility Felker, Sean J.; Bachmann, Benjamin; Abu Shawareb, Hatim Target Diagnostics Physics and Engineering for Inertial Confinement Fusion VI https://doi.org/10.1117/12.2274611	conference	September 2017
Resolving hot spot microstructure using x-ray penumbral imaging (invited) Bachmann, B.; Hilsabeck, T.; Field, J. Review of Scientific Instruments, Vol. 87, Issue 11 https://doi.org/10.1063/1.4959161	journal	August 2016
Experimental results of radiation-driven, layered deuterium-tritium implosions with adiabat-shaped drives at the National Ignition Facility Smalyuk, V. A.; Robey, H. F.; Döppner, T. Physics of Plasmas, Vol. 23, Issue 10 https://doi.org/10.1063/1.4964919	journal	October 2016

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Title: eHXI: A permanently installed, hard x-ray imager for the National Ignition Facility

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