Comparison of polystyrene scintillator fiber array and monolithic polystyrene for neutron imaging and radiography

Journal Article · Mon Nov 14 00:00:00 EST 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4962040· OSTI ID:1499347

Simpson, R. ^[1]; Cutler, T. E. ^[1]; Danly, C. R. ^[1]; Espy, M. A. ^[1]; Goglio, J. H. ^[1]; Hunter, J. F. ^[1]; Madden, A. C. ^[1]; Mayo, D. R. ^[1]; Merrill, F. E. ^[1]; Nelson, R. O. ^[1]; Swift, A. L. ^[1]; Wilde, C. H. ^[1]; Zocco, T. G. ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The neutron imaging diagnostic at the National Ignition Facility has been operating since 2011 generating neutron images of deuterium-tritium (DT) implosions at peak compression. The current design features a scintillating fiber array, which allows for high imaging resolution to discern small-scale structure within the implosion. In recent years, it has become clear that additional neutron imaging systems need to be constructed in order to provide 3D reconstructions of the DT source and these additional views need to be on a shorter line of sight. As a result, there has been increased effort to identify new image collection techniques that improve upon imaging resolution for these next generation neutron imaging systems, such as monolithic deuterated scintillators. As such, this work details measurements performed at the Weapons Neutron Research Facility at Los Alamos National Laboratory that compares the radiographic abilities of the fiber scintillator with a monolithic scintillator, which may be featured in a future short line of sight neutron imaging systems.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: 89233218CNA000001
• OSTI ID: 1499347
• Alternate ID(s): OSTI ID: 22596395
• Report Number(s): LA-UR--16-23842
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 11 Vol. 87; ISSN 0034-6748; ISSN RSINAK
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English

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