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Publications

Peer-reviewed journal publications

  • M. Folsom, P.A. Hausladen, J.P. Hayward, J. Nattress, K.P. Ziock, “Characterization of retroreflective tape optical properties for use with position-sensitive scintillator detectors,” Nuclear Instruments and Methods in Physics Research A, Vol. 1005, July 2021, 165365. Available: https://doi.org/10.1016/j.nima.2021.165365.
  • Zhao, Hongxiang; Yu, Hao; Redding, Caleb ; Li, Zhou; Chen, Tianheng; Meng, Yuan; Hajagos, Tibor; Hayward, Jason; Pei, Qibing. “Scintillation Liquid Loaded with Hafnium Oxide Nanoparticles for Spectral Resolution of Gamma Ray,” Accepted for publication in ACS Applied Nano Materials in Feb. 2021.
  • Chen T, Yu H, Wen X, Redding C, Hajagos TJ, Zhao H, Hayward JP, Yang C, Pei Q, “A Plastic Scintillator Based on an Efficient Thermally Activated Delayed Fluorescence Emitter 9‐(4‐(4,6‐diphenyl‐1,3,5‐triazin‐2‐yl)‐2‐methylphenyl)‐3,6‐dioctyl‐9 H ‐carbazole for Pulse Shape Discrimination Measurement,” Advanced Optical Materials 2001975, Available online: https://doi.org/10.1002/adom.202001975.
  • H. Fattal, T. Creason, C. Delzer, A. Yangui, J.P. Hayward, B. Ross, M. Du, D. Glatzhofer, B. Saparov, “Zero-Dimensional Hybrid Organic-Inorganic Indium Bromide with Blue Emission,” Inorganic Chemistry, accepted for publication Dec. 2020. Available:
  • C. Britt, X. Wen, Hi. Qi, J.P. Hayward, “Directionality for wearable, closely packed radiation detection arrays,” Nuclear Instruments and Methods in Physics Research A Vol. 986, 2020. Available: https://doi.org/10.1016/j.nima.2020.164708
  • M.E. Montague, C. Delzer, X. Wen, K.C. Goetz, D. Shedlock, J.P.  Hayward, “Radiation hardness characterization of LKH-5 scintillating glass,” Nuclear Instruments and Methods in Physics Research A Vol. 982, December 2020, 164551. Available: https://doi.org/10.1016/j.nima.2020.164551
  • A.W. Decker, N.J. Cherepy, S. Hok, J.P. Hayward, “Simulated X-ray radiographic performance of a bismuth-loaded PVT array,” IEEE Transactions on Nuclear Science, Oct. 2020, Available: http://dx.doi.org/10.1109/TNS.2020.3029498
  • X. Wen, J.P. Hayward, “Time resolution measurements of EJ-232Q with single- and dual-sided readouts,” IEEE Transactions on Nuclear Science, Vol. 67, No. 9, Sept. 2020, Available: http://dx.doi.org/10.1109/TNS.2020.3010469
  • A.S. Moore, L.G. Worrall, C. Britton, S. Croft, K. Dayman, M.N. Ericson, R.D. McElroy, A.D. Nicholson, G. Nutter, R.B. Warmack, J.P. Hayward, “Development and evaluation of a list mode neutron coincidence collar for spatial response measurements of fresh fuel assemblies,” Nuclear Instruments and Methods in Physics Research A Vol. 976, 2020, 164274. Available: https://doi.org/10.1016/j.nima.2020.164274
  • M.E. Moore, C. Delzer, J. Watts, B.L. Musico, C. Xu, R.M. Collette, P.D. Rack, Y. Zhang, C.L. Melcher, S. McConchie, J.P. Hayward, “Studying the effects of thermally diffusing Ce into the surface of YAlO3 for associated particle imaging,” Nuclear Instruments and Methods in Physics Research B, Vol. 473, 2020, 55, Available: https://doi.org/10.1016/j.nimb.2020.03.038
  • C. Delzer, M. Zhuravleva,  L. Stand, C. Melcher, N. Cherepy, S. Payne, “Observations regarding inclusions in the growth of Cs2HfCl6 single crystal scintillators,” Journal of Crystal Growth, Vol. 531, 2020, 125336, Available: https://doi.org/10.1016/j.jcrysgro.2019.125336
  • M.E. Moore, P. Trtik, J. Lousteau, D. Pugliese, G. Brambilla, J.P. Hayward, “Neutron imaging with Li-glass based multicore SCIntillating FIber (SCIFI),” IEEE Journal of Lightwave Technology, Vol. 37, 2019, 5699. Available: https://doi.org/10.1109/JLT.2019.2934497.
  • A.S. Moore, S. Croft, R.D. McElroy, J.P. Hayward, “Methods for diagnosing and quantifying double pulsing in a Uranium Neutron Collar system using shift register logic,” Nuclear Instruments and Methods in Physics Research A, Vol. 11, 2019, 941, Available: https://doi.org/10.1016/j.nima.2019.162333.
  • Z. Liu, S. Chatzidakis, J.M. Scaglione, C. Liao, H. Yang, J.P. Hayward, “Muon Tracing and Image Reconstruction Algorithms for Cosmic Ray Muon Computed Tomography,” IEEE Transactions in Image Processing, Vol. 28, 2019, 426-435, Available: https://doi.org/10.1109/TIP.2018.2869667.
  • M.C. Tweardy, S. McConchie, J.P. Hayward, “Quantifying the determinants of leakage multiplication for large uranium objects using Monte Carlo simulations,” Nuclear Instruments and Methods in Physics Research A, 2018, Available: https://doi.org/10.1016/j.nima.2018.11.143.
  • M.E. Moore, J. Lousteau, P. Trtik, H.Z. Bilheux, D. Pugliese, D. Milanese, A.T. Simone, G. Brambilla, J.P. Hayward, “Fabrication and experimental evaluation of microstructured 6Li silicate fiber arrays for high spatial resolution neutron imaging,” Nuclear Instruments and Methods in Physics Research A,2018, Available: https://doi.org/10.1016/j.nima.2018.12.010.
  • A.T. Simone, S. Croft, J.P. Hayward, L.G. Worrall, “Using the JCC-71 neutron coincidence collar as a benchmark for detector characterization with PTR-32 list mode data acquisition,” Nuclear Instruments and Methods in Physics Research A,2018, Available: https://doi.org/10.1016/j.nima.2018.08.022.
  • A.T. Simone, S. Croft, C. Britton, R.D. McElroy, J.P. Hayward, “Investigating the Non-Ideal Behavior of the Amptek A111 Charge Sensitive Preamplifier and Discriminator Board-3He Proportional Counter Combination Used in Common Safeguards Neutron Coincidence Counters,” Nuclear Instruments and Methods in Physics Research A,2018, Available: https://doi.org/10.1016/j.nima.2018.10.033.
  • C. Redding, A. Hackett, M. Laubach, R. Feng, P. Feng, C. Hurlbut, P. Liaw, J.P. Hayward, “Tensile, flexural, and light output measurements of selected organic scintillators for evaluation of their potential as structural materials,” Nuclear Instruments and Methods in Physics Research A,2018, Available: https://doi.org/10.1016/j.nima.2018.10.126.
  • C. Liao, H. Yang, Z. Liu, J.P. Hayward, “Design and Characterization of a Scintillator-Based Position-Sensitive Detector for Muon Imaging,” Nuclear Technology, 2018, Available: https://doi.org/10.1080/00295450.2018.1522885.
  • M.E. Moore, H. Xue, P. Vilmercati, S.J. Zinkle, N. Mannella, J.P. Hayward, “Thermal diffusion of mixed valence Ce in 6Li loaded silicate glass for neutron imaging,” Journal of Non-Crystalline Solids, Vol. 498, Oct. 2018, 145-152, Available: https://doi.org/10.1016/j.jnoncrysol.2018.06.004
  • A.L. Lousteau, R.D. McElroy, S. Croft, J.P. Hayward, “Determining 235U enrichment in bulk uranium items using dual-energy interrogation with delayed neutron measurement,” Nuclear Instruments and Methods in Physics Research A, Vol. 904, Oct. 2018, pp. 74-80.  Available: https://doi.org/10.1016/j.nima.2018.07.030
  • S.B. Donnald, R. Williams, C.L. Melcher, F. Meng, M. Koschan, S. Friedrich, J.A. Johnson, J.P. Hayward, “Correlation of Nonproportionality and Scintillation Properties with Cerium Concentration in YAlO3:Ce,” IEEE Transactions on Nuclear Science, Vol. 65, No. 5, May 2018, Available: http://dx.doi.org/10.1109/TNS.2018.2828428
  • S. Chatzidakis, Z. Liu, J.P. Hayward, J.M. Scaglione, “A generalized trajectory estimation algorithm with energy loss for application to muon tomography,” Journal of Applied Physics, Vol. 123, 124903, published online Mar 2018, Available: https://doi.org/10.1063/1.5024671
  • J.P. Hayward, J. Sparger, L. Fabris, R.J. Newby, “Fast neutron counting in a mobile, trailer-based search platform,” EPJ Nuclear Sci. Technol., Vol. 3, 35, published online Dec. 2017. Available: http://dx.doi.org/10.1051/epjn/2017028.
  • M.C. Tweardy, S. McConchie, J.P. Hayward, “A Point Kinetics Model for Estimating Neutron Multiplication of Bare Uranium Metal in Tagged Neutron Interrogation,” IEEE Transactions on Nuclear Science, Vol. 64, No. 7, July 2017. Available: http://dx.doi.org/10.1109/TNS.2017.2715238.
  • B. Ayaz-Maierhafer, C.G. Britt, A.J. August, H. Qi, C.E. Seifert, J.P. Hayward, “Design Optimization for a Wearable, Gamma-Ray and Neutron Sensitive, Detector Array with Directionality Estimation,” Nuclear Instruments and Methods in Physics Research A,  870, 131-139.  Available: https://doi.org/10.1016/j.nima.2017.07.020
  • A.T. Simone, S. Croft, R.D. McElroy, L. Sun, J.L. Lacy, A. Athanasiades, J.P. Hayward, “Performance of a Boron-Coated-Straw- Based HLNCC for International Safeguards Applications,” IEEE Transactions on Nuclear Science, 64 (2017), 2690-2697. Available: http://dx.doi.org/10.1109/TNS.2017.2742986
  • Simone, A. T., Croft, S., Favalli, A., & Hayward, J. P., “A Comparison of Approaches to Determine Dead Time Parameters Using a Boron- Coated-Straw High-Level Neutron Coincidence Counter,” ESARDA Bulletin, 54 (2017) 6-13. Available from https://esarda.jrc.ec.europa.eu/
  • Z. Liu, J.P. Hayward, C. Liao, H. Yang, “Detection of Missing Assemblies and Estimation of the Scattering Densities in a VSC-24 Dry Storage Cask with Cosmic-Ray-Muon-Based Computed Tomography,” Journal of the Institute of Nuclear Materials Management, XLV (2017), 12-20.  Available from https://www.inmm.org/Members
  • J. Zhang, M.E. Moore, Z. Wang, Zhou Rong, C. Yang, J.P. Hayward, “Study of sampling rate influence on neutron-gamma discrimination with stilbene coupled to a silicon photomultiplier,” Applied Radiation and Isotopes, Vol. 128, Oct. 2017, p. 120-124. Available: http://dx.doi.org/10.1016/j.apradiso.2017.06.036
  • X. Zhang, M.E. Moore, K.M. Lee, E.D. Lukosi, J.P. Hayward, “Study of cerium diffusion in undoped lithium-6 enriched glass with Rutherford backscattering spectrometry,” Nuclear Instruments and Methods in Physics Research B, Vol. 378, July 2016, p. 8-11. Available: http://dx.doi.org/10.1016/j.nimb.2016.04.036
  • Y. Song, J. Conner, X. Zhang, J.P. Hayward, “Monte Carlo simulation of a very high resolution thermal neutron detector composed of glass scintillation microfibers,” Applied Radiation and Isotopes, Vol. 108, 2016, p. 100-107.  Available: http://dx.doi.org/10.1016/j.apradiso.2015.12.035.
  • A. Iyengar, M. Beach, R.J. Newby, L. Fabris, L.H. Heilbronn, J.P. Hayward, “Systematic Measurement of Fast Neutron Background Fluctuations in an Urban Area Using a Mobile Detection System,” Nuclear Instruments and Methods in Physics Research A, Vol. 773, 2015, p. 27-32.  Available: http://dx.doi.org/10.1016/j. nima.2014.10.045
  • B. Ayaz-Maierhafer, M.A. Laubach, J.P. Hayward, “Sensing of Cf-252 Fission Gamma Rays Using Same-Size Glass Detectors,” Journal of Radioanalytical and Nuclear Chemistry, Nov. 2015. Available: http://dx.doi.org/10.1007/s10967-015-4584-5.
  • X. Zhang, B. Ayaz-Maierhafer, M.A. Laubach, J.P. Hayward, “Observation of Material, Thickness, and Bremsstrahlung X-ray Intensity Dependent Effects in Moderate and High Z Targets in a Gamma and X-Ray LIDAR Experiment,” Nuclear Instruments and Methods in Physics Research A, vol. 784, June 2015, p. 621-624. Available: http://dx.doi.org/10.1016/j.nima.2014.12.076
  • K.P. Ziock, C.B. Boehnen, J.M. Ernst, L. Fabris, J. Hayward, T.P. Karnowski, V.C. Paquita, D.R. Patlolla, D.G. Trombino, “Motion Correction for Passive Radiation Imaging of Small Vessels in Ship-to-Ship Inspections,” Nuclear Instruments and Methods in Physics Research A, Vol. 805, January 2015, p. 116-126.  Available: http://dx.doi.org/10.1016/j.nima.2015.08.040.
  • J. Littell. E. Lukosi, J.P. Hayward, R. Milburn, A. Rowan, “Coded Moderator Approach for Fast Neutron Source Detection and Localization at Standoff,” Nuclear Instruments and Methods in Physics Research A. Available: http://dx.doi.org/10.1016/j.nima.2014.11.118
  • M.A. Laubach, J.P. Hayward, X. Zhang, J.W. Cates, “Timing and Position Response of a Block Detector for Fast Neutron Time-of-Flight Imaging,” Nuclear Instruments and Methods in Physics Research A, Vol. 763, November 2014, p. 495-501.  Available:http://dx.doi.org/10.1016/j.nima.2014.06.052
  • B. Ayaz-Maierhafer, X. Zhang, J.P. Hayward, Z.W. Bell, M.A. Laubach “Investigation of active background from photofission in depleted uranium using Cherenkov detectors and gamma ray time-of-flight analysis,” IEEE Transactions on Nuclear Science, Vol. 61, No. 4, August 2014, p. 2402-2409,  Available: http://dx.doi.org/10.1109/TNS.2014.2332273.
  • X. Zhang, J.P. Hayward, M.A. Laubach, “New method to remove the electronic noise for absolutely calibrating low gain photomultiplier tube with a higher precision,” Nuclear Instruments and Methods in Physics Research A, Vol. 755, Aug. 2014, p. 32-37. Available: http://dx.doi.org/10.1016/j.nima.2014.04.018
  • S.B. Donnald, J.P. Hayward, C.L. Melcher, M. Koschan, M. Tyagi, H. Rothfuss, “Effect of Codoping on the Thermoluminescense and Non-Proportionality of Gd3Ga3Al2O12:Ce,” IEEE Transactions on Nuclear Science, Vol. 60, No. 5, October 2013, p. 4002-4006.  Available: http://dx.doi.org/10.1109/TNS.2013.2277862.
  • J.W. Cates, J.P. Hayward, and X. Zhang, “Measurement of Achievable Timing Resolution with ZnO:Ga Films,” IEEE Transactions on Nuclear Science, Vol. 60, No. 4, August 2013, p. 3127-3133.  Available: http://dx.doi.org/10.1109/TNS.2013.2272883.
  • S.B. Donnald, M. Tyagi, H. Rothfuss, M. Koschan, J.P. Hayward, M. Zhuravleva, C.L. Melcher, “Sample-to-Sample Variation in Single Crystal YAP:Ce Non-Proportionality,” IEEE Transactions on Nuclear Science, Vol. 99, Sept. 2013, p. 1. Available: http://dx.doi.org/10.1109/TNS.2013.2277860.
  • J.W. Cates, J.P. Hayward, X. Zhang, “Significant Increases in Light Extraction from YAP:Ce Scintillators with a Uniform Surface Taper Modification at the Exit Boundary,” IEEE Transactions on Nuclear Science, Vol. 99, Sept. 2013, p. 1. Available: http://dx.doi.org/10.1109/TNS.2013.2280434
  • X. Zhang, J.W. Cates, J.P. Hayward, G. Bertuccio, D. Puglisi, P.A. Hausladen, “Characterizing the timing performance of a fast 4H-SiC detector with an 241Am source,” IEEE Transactions on Nuclear Science, Vol. 60, Issue 3, June 2013, p. 2352-2356. Available: http://dx.doi.org/10.1109/TNS.2013.2260652.
  • B. Ayaz-Maierhafer, J.P. Hayward, K.P. Ziock, M.A. Blackston, L. Fabris, “Transmission and signal loss in mask designs for a dual neutron and gamma imager applied to mobile standoff detection,” Nuclear Instruments and Methods in Physics Research A, Vol. 712, June 2013, p. 1-8. Available: http://dx.doi.org/10.1016/j.nima.2013.02.001.
  • B. Ayaz-Maierhafer, J.P. Hayward, K.P. Ziock, M.A. Blackston, L. Fabris, “Angular resolution study of a combined gamma-neutron coded aperture imager for standoff detection,” Nuclear Instruments and Methods in Physics Research A, Vol. 712, June 2013, p. 120-125. Available: http://dx.doi.org/10.1016/j.nima.2013.02.005.
  • J.W. Cates, J.P. Hayward, X. Zhang, “Increased Light Extraction from Inorganic Scintillators with Laser-Etched Microstructures,” IEEE Transactions on Nuclear Science, Vol. 60, Issue 2, May 2013, p. 1027-1032. Available: http://dx.doi.org/10.1109/TNS.2013.2249090
  • A.K. Barnett, M.N. Cox, L. Crow, Y. Diawara, L.L. Funk, J.P. Hayward, K. Menhard, V.N. Sedov, “A High Count Rate Neutron Beam Monitor for Neutron Scattering Facilities,” IEEE Transactions on Nuclear Science, Vol. 60, Issue 2, May 2013, p. 668-670. Available: http://dx.doi.org/10.1109/TNS.2012.2225111
  • B. Ayaz-Maierhafer, J.P. Hayward, Z.W. Bell, L.A. Boatner, R.E. Johnson, “Measurements of thermal neutron response in Cherenkov glassed designed for MeV photon detection,” IEEE Transactions on Nuclear Science, Vol. 60, Issue 2, May 2013, p. 701-707. Available: http://dx.doi.org/10.1109/TNS.2013.2247420
  • J.P. Hayward, Z.W. Bell, L.A. Boatner, C.L. Hobbs, R.E. Johnson, J.O. Ramey, G.E. Jellsion, Jr., “Characterizing the response of Cherenkov glass detectors with isotopic gamma-ray sources,” Journal of Radioanalytical and Nuclear Chemistry, Feb. 2013, Vol. 295, Issue 2, pp. 1143-1151. Available: http://dx.doi.org/10.1007/s10967-012-1898-4
  • J.P. Hayward, Z.W. Bell, L.A. Boatner, C.L. Hobbs, R.E. Johnson, J.O. Ramey, G.E. Jellison, Jr., “Simulated Response of Cherenkov Glass Detectors to MeV Photons,” Journal of Radioanalytical and Nuclear Chemistry, Feb. 2013, Vol. 295, Issue 2, pp. 1321-1329. Available: http://dx.doi.org/10.1007/s10967-012-1909-5
  • M. Tyagi, M. Koschan, H. Rothfuss, J.P. Hayward, C.L. Melcher, “Effect of Ca2+ Co-Doping on the Temperature Dependence of Gd2SiO5:Ce Photoluminescence,” IEEE Transactions on Nuclear Science, Vol. 60, Issue 2, April 2013, p. 973-978. Available: http://dx.doi.org/10.1109/TNS.2012.2228235.
  • J. Cates, J.P. Hayward, X. Zhang, P.A. Hausladen, B. Dabbs, “Timing Resolution Study of an Associated Particle Detector for Fast Neutron Imaging,” IEEE Transactions on Nuclear Science, Vol. 59, No. 4, pp. 1750-1756. Available: http://dx.doi.org/10.1109/TNS.2012.2201751.
  • X. Zhang, J.P. Hayward, J.W. Cates, P.A. Hausladen, M.A. Laubach, J.E. Sparger, S.B. Donnald, “Benchmarking the Geant4 full system simulation of an associated particle detector for use in a D-T neutron generator,” Applied Radiation and Isotopes, Vol. 70, August 2012, pp. 1485-1493, Available: http://dx.doi.org/10.1016/j.apradiso.2012.04.026.

PhD dissertations