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J. Workman, J. R. Fincke, G. A. Kyrala, and T. Pierce, “Uniform large-area x-ray imaging at 9 keV using a backlit pinhole,” Appl. Opt. 44, 859865 (2005).
B. E. Blue, J. F. Hansen, and H. F. Robey, “Improved pinhole-apertured point-projection backlighter geometry,” Rev. Sci. Instrum. 75, 39893991 (2004).
C. C. Kuranz, B. E. Blue, R. P. Drake, H. F. Robey, J. F. Hansen, J. P. Knauer, M. J. Grosskopf, C. Krauland, and D. C. Marion, “Dual, orthogonal, backlit pinhole radiography in OMEGA experiments,” Rev. Sci. Instrum. 77, 10E327 (2006).
O. L. Landen, D. R. Farley, S. G. Glendinning, L. M. Logory, P. M. Bell, J. A. Koch, F. D. Lee, D. K. Bradley, D. H. Kalantar, C. A. Back, and R. E. Turner, “X-ray backlighting for the National Ignition Facility (invited),” Rev. Sci. Instrum. 72, 627 (2001).
D. H. Froula, D. T. Michel, I. V. Igumenshchev, S. X. Hu, B. Yaakobi, J. F. Myatt, D. H. Edgell, R. Follett, V. Y. Glebov, V. N. Goncharov, T. J. Kessler, A. V. Maximov, P. B. Radha, T. C. Sangster, W. Seka, R. W. Short, A. A. Solodov, C. Sorce, and C. Stoeckl, “Laser-plasma interactions in direct-drive ignition plasmas,” Plasma Phys. Controlled Fusion 54, 124016 (2012).
C. M. Krauland, L. C. Jarrott, R. P. Drake, P. A. Keiter, C. C. Kuranz, B. Westover, H. Sawada, D. N. Kaczala, and P. Bonofiglio, “An evaluation of high energy bremsstrahlung background in point-projection x-ray radiography experiments,” Rev. Sci. Instrum. 83, 10E528 (2012).
J. R. Fein, J. L. Peebles, P. A. Keiter, J. P. Holloway, S. R. Klein, C. C. Kuranz, M. J.-E. Manuel, and R. P. Drake, “Investigation of the hard x-ray background in backlit pinhole imagersa,” Rev. Sci. Instrum. 85, 11E610 (2014).
B. R. Maddox, H. S. Park, B. A. Remington, N. Izumi, S. Chen, C. Chen, G. Kimminau, Z. Ali, M. J. Haugh, and Q. Ma, “High-energy x-ray backlighter spectrum measurements using calibrated image plates,” Rev. Sci. Instrum. 82, 023111 (2011).
S. X. Hu, D. T. Michel, D. H. Edgell, D. H. Froula, R. K. Follett, V. N. Goncharov, J. F. Myatt, S. Skupsky, and B. Yaakobi, “Hydrodynamic simulations of long-scale-length two-plasmon decay experiments at the Omega Laser Facility,” Phys. Plasmas 20, 032704 (2013).
J. F. Myatt, H. X. Vu, D. F. DuBois, D. A. Russell, J. Zhang, R. W. Short, and A. V. Maximov, “Mitigation of two-plasmon decay in direct-drive inertial confinement fusion through the manipulation of ion-acoustic and Langmuir wave damping,” Phys. Plasmas 20, 052705 (2013).
J. R. Fein, J. P. Holloway, D. H. Edgell, D. H. Froula, P. A. Keiter, and R. P. Drake, “Empirical investigation of the two-plasmon decay instability in high-Z, highly-ionized plasmas,” Phys. Plasmas (to be published).
G. A. Kyrala, “Cross calibration of AGFA-D7 x-ray film against direct exposure film from 2 to 8.5 keV using laser generated x-rays,” Rev. Sci. Instrum. 77, 055104 (2006).
M. J. Berger, J. H. Hubbell, S. M. Seltzer, J. Chang, J. S. Coursey, R. Sukumar, D. S. Zucker, and K. Olsen, XCOM: Photon Cross Section Database (version 1.5), National Institute of Standards and Technology, Gaithersburg, MD, 2010.

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Experiments were performed to mitigate the hard x-ray background commonly observed in backlit pinhole imagers. The material of the scaffold holding the primary backlighter foil was varied to reduce the laser-plasma instabilities responsible for hot electrons and resulting hard x-ray background. Radiographic measurements with image plates showed a factor of >25 decrease in x-rays between 30 and 67 keV when going from a plastic to Al or V scaffold. A potential design using V scaffold offers a signal-to-background ratio of 6:1, a factor of 2 greater than using the bare plastic scaffold.


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