A combined MeV-neutron and x-ray source for the National Ignition Facility

Hohenberger, M.; Kerr, S.; Yeamans, C.; Rusby, D.; Meaney, K. D.; Hahn, K.; Heredia, R.; Sarginson, T.; Blue, B.; Mackinnon, A. J.; Hsing, W. W.

doi:10.1063/5.0101816

Title: A combined MeV-neutron and x-ray source for the National Ignition Facility

Journal Article · Thu Oct 06 00:00:00 EDT 2022 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/5.0101816· OSTI ID:1902011

^[1];

^[1]; Rusby, D. ^[1];

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^[1]; Heredia, R. ^[1]; Sarginson, T. ^[1]; Blue, B. ^[1];

^[1]; Hsing, W. W. ^[1]

Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

We report that in support of future radiation-effects testing, a combined environment source has been developed for the National Ignition Facility (NIF), utilizing both NIF’s long-pulse beams, and the Advanced Radiographic Capability (ARC) short pulse lasers. First, ARC was used to illuminate a gold foil at high-intensity, generating a significant x-ray signal > 1 MeV. This was followed by NIF 10 ns later to implode an exploding pusher target filled with fusionable gas for neutron generation. The neutron and x-ray bursts were incident onto a retrievable, close-standoff diagnostic snout. With separate control over both neutron and x-ray emission, the platform allows for tailored photon and neutron fluences and timing on a recoverable test sample. The platform exceeded its initial fluence goals, demonstrating a neutron fluence of 2.3 ×10¹³ n/cm² and an x-ray dose of 7 krad.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1902011

Alternate ID(s):: OSTI ID: 1891361

Report Number(s):: LLNL-JRNL-835863; 1054809; TRN: US2311162

Journal Information:: Review of Scientific Instruments, Vol. 93, Issue 10; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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