Rescue Communication

Stephens, Keri K.; Tich, Kendall P.

doi:10.1002/9781119678953.ch20

The Handbook of Crisis Communication 2022

DOI: 10.1002/9781119678953.ch20

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Rescue Communication

Keri K. Stephens¹,

Kendall P. Tich²

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2023

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Development of a bright MeV photon source with compound parabolic concentrator targets on the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser

et al. 2023

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Compound parabolic concentrator (CPC) targets are utilized at the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser to enhance the acceleration of electrons and production of high energy photons, for laser durations of 10 ps and energies up to 2.4 kJ. A large enhancement of mean electron energy (>2 ×) and photon brightness (>10×) is found with CPC targets compared to flat targets. Using multiple diagnostic techniques at different spatial locations and scaling by gold activation spatial data, photon spectra are characterized for [Formula: see text] MeV. Beam width and pointing variations are given. The efficient production of MeV photons at [Formula: see text] W/cm2 with CPCs is observed, with doses of >10 rad in air at 1 m for [Formula: see text] MeV; these exceed those previously reported with laser-driven sources. Using this source, sub-mm resolution radiographs are generated through large areal density radiograph objects. These results are promising for the development of bright MeV x-ray and particle sources on Petawatt class laser systems.

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Development of a bright MeV photon source with compound parabolic concentrator targets on the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser

et al. 2023

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Rescue Communication

Cited by 1 publication

References 32 publications

Development of a bright MeV photon source with compound parabolic concentrator targets on the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser

Development of a bright MeV photon source with compound parabolic concentrator targets on the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser

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