13 September 2011 X-ray imaging in an environment with high-neutron background on National Ignition Facility
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Abstract
X-ray imaging instruments will operate in a harsh ionizing radiation background environment on implosion experiments at the National Ignition Facility. These backgrounds consist of mostly neutrons and gamma rays produced by inelastic scattering of neutrons. Imaging systems based on x-ray framing cameras with film and CCD's have been designed to operate in such harsh neutron-induced background environments. Some imaging components were placed inside a shielded enclosure that reduced exposures to neutrons and gamma rays. Modeling of the signal and noise of the x-ray imaging system is presented.
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V. A. Smalyuk, J. Ayers, P. M. Bell, J.-L. Bourgade, D. K. Bradley, J. Celeste, C. Cerjan, S. Darbon, J. Emig, B. Felker, C. Hagmann, J. Holder, N. Izumi, J. D. Kilkenny, J. Moody, K. Piston, A. Rousseau, C. Sorce, R. Tommasini, "X-ray imaging in an environment with high-neutron background on National Ignition Facility", Proc. SPIE 8144, Penetrating Radiation Systems and Applications XII, 81440N (13 September 2011); doi: 10.1117/12.894200; https://doi.org/10.1117/12.894200
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