Development of kfps Bright Glash Neutron Imaging for Rapid, Transient Processes
R. Zboray, Ch. Lani, A. Portanovadownload PDF
Abstract. High-speed neutron radiography is limited by the available flux even on the strongest spallation sources. Therefore, capturing rapid, transient processes by neutron imaging remains difficult. TRIGA reactors have the capability due to their special fuel composition to produce extremely bright neutron pulses for a short duration. This opens the possibility to image short, very rapid transient processes at very high rates. We have developed bright flash thermal neutron radiography at the beam line of the 1 MW Penn State Breazeale research reactor and demonstrated imaging rates up to 4 kfps. Here we discuss and analyze some aspects of the technique.
Bright Flash Neutron Radiography, Time-Resolved Neutron Imaging, kfps, TRIGA Pulse
Published online 1/5/2020, 6 pages
Copyright © 2020 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: R. Zboray, Ch. Lani, A. Portanova, Development of kfps Bright Glash Neutron Imaging for Rapid, Transient Processes, Materials Research Proceedings, Vol. 15, pp 154-159, 2020
The article was published as article 24 of the book Neutron Radiography
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 R. Zboray, P. Trtik, “800 fps neutron radiography of air-water two-phase flow”, MethodsX https://doi.org/10.1016/j.mex.2018.01.008
 H. Nakamura, Y. Sibamoto, Y. Anoda, Y. Kukita, K. Mishima & T. Hibiki, “Visualization of Simulated Molten-Fuel Behavior in a Pressure Vessel Lower Head Using High-Frame-Rate Neutron Radiography”, Nuclear Technology, 125:2, (1999), 213-224. https://doi.org/10.13182/NT99-A2943
 Y. Sibamoto, Y. Kukita, H. Nakamura. “Visualization and Measurement of Subcooled Water Jet Injection into High-Temperature Melt by Using High-Frame-Rate Neutron Radiography”, Nuclear Technology, 139:3, (2002),205-220. https://doi.org/10.13182/NT02-A3314
 R.H. Bossi, A.H. Robinson, J.P. Barton, “High-Speed Motion Neutron Radiography,” Nucl. Technol., 59, 363, (1982). https://doi.org/10.13182/NT82-A33039
 S-H. Wang, “High Speed Motion Neutron Radiography of Two-Phase Flow”, Oregon State University (1981)
 A.S. Tremsin, M. Lerche, B. Schillinger, W. B. Feller, Bright flash neutron radiography capability of the research reactor at McClellan Nuclear Research Center, Nuclear Instruments and Methods in Physics Research A, 748 (2014), 46-53. https://doi.org/10.1016/j.nima.2014.02.034
 M. Lerche, A.S. Tremsin, B. Schillinger, Bright Flash Neutron Radiography at the McClellan Nuclear Research Reactor, Physics Procedia, 69, (2015), 299-303. https://doi.org/10.1016/j.phpro.2015.07.042
 Ch. Lani & R. Zboray, “Development of a high frame rate neutron imaging method for two-phase flows”, Nucl. Inst. Meth. A. (2019), In Press, Corrected Proof. https://doi.org/10.1016/j.nima.2018.12.022
 D. L. Hetrick, Dynamics of Nuclear Reactors, University of Chicago Press, 1971
 Westinghouse, WL-8074 Boron coated, electrically compensated ion chamber.
 Scintacor, Neutron Screens, available at https://scintacor.com/wp-content/uploads/2015/09/Datasheet-Neutron-Screens-High-Res.pdf, (accessed on July 20th, 2018)
 N. Kubota, M. Katagiri, K. Kamijo, H. Nanto, Evaluation of ZnS-family phosphors for neutron detectors using photon counting method, Nuclear Instruments and Methods in Physics Research A, 529, (2004), 321–324. https://doi.org/10.1016/j.nima.2004.05.004
 G. Jeff Sykora, Erik M. Schooneveld, Nigel J. Rhodes, “ZnO:Zn/6LiF scintillator – A low afterglow alternative to ZnS:Ag/6LiF for thermal neutron detection”, Nuclear Inst. and Methods in Physics Research A, 883, (2018), 75–82. https://doi.org/10.1016/j.nima.2017.11.052
 R. Zboray, H-M. Prasser, “Optimizing the performance of cold-neutron tomography for investigating annular flows and functional spacers in fuel rod bundles”, Nucl. Eng. Des., 260, (2013), 188-203. https://doi.org/10.1016/j.nucengdes.2013.03.026