Diagnostic development and needs for laser driven MeV x-ray radiography

Rusby, D. R.; Williams, G. J.; Kerr, S. M.; Aghedo, A.; Alessi, D.; Anderson, S.; Hill, M.; Rodger, I.; Rubery, M.; Selwood, M. P.; Treffert, F.; Mackinnon, A. J.

doi:10.1063/5.0219493

Title: Diagnostic development and needs for laser driven MeV x-ray radiography

Journal Article · 12 December 2024 · Review of Scientific Instruments

DOI: https://doi.org/10.1063/5.0219493 · OSTI ID:2524631

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Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Florida State Univ., Tallahassee, FL (United States)
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Univ. of Durham (United Kingdom)

Laser-driven MeV x-ray radiography of dynamic, dense objects demands a small, high flux source of energetic x-rays to generate an image with sufficient quality. Understanding the multi-MeV x-ray spectrum underscores the ability to extrapolate from the current laser sources to new future lasers that might deploy this radiography modality. Here, in this study, we present a small study of the existing x-ray diagnostics and techniques. We also present work from National Ignition Facility-Advanced Radiographic Capability, where we deploy three diagnostics to measure the x-ray spectrum up to 30 MeV. Finally, we also discuss the needs and developments of two new diagnostics: a single crystal scintillator spectrometer and a fast decay activation.

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

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: AC52-07NA27344; SC0021057

OSTI ID:: 2524631

Report Number(s):: LLNL--JRNL-864524; 1097714

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 12 Vol. 95; ISSN 0034-6748

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

Country of Publication:: United States

Language:: English

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