Staff information

PNNL Publications

2023

• Mirkhosravi F., A. Rashidi, A.T. Elshafiey, J. Gallagher, Z. Abedi, K. Ahn, and A. Lintereur, et al. 2023. "Effects of fast and thermal neutron irradiation on Ga-polar and N-polar GaN diodes." Journal of Applied Physics 133, no. 1:Art. No. 015704. PNNL-SA-175675. doi:10.1063/5.0119294

2022

• Hagen A.R., K.D. Jarman, J.D. Ward, G.C. Eiden, C.J. Barinaga, E.K. Mace, and C.E. Aalseth, et al. 2022. "Reduction of detection limit and quantification uncertainty due to interferent by neural classification with abstention." Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1040. PNNL-SA-171868. doi:10.1016/j.nima.2022.167174

2021

• Alexander T.R., R.A. Bunker, E.K. Mace, K.S. Thommasson, C.M. Johnson, and J.D. Lowrey. 2021. UNESE Argon-39 Measurement Techniques: Developing an above-ground Argon-39 Measurement Capability. PNNL-30869. Richland, WA: Pacific Northwest National Laboratory. UNESE Argon-39 Measurement Techniques: Developing an above-ground Argon-39 Measurement Capability
• Fritz B.G., T.R. Alexander, C.M. Johnson, E.K. Mace, B.D. Milbrath, and J.C. Hayes. 2021. "Background concentrations of Argon-39 in shallow soil gas." Journal of Environmental Radioactivity 228. PNNL-SA-155605. doi:10.1016/j.jenvrad.2020.106513
• Fritz B.G., T.R. Alexander, T.W. Bowyer, J.C. Hayes, E.K. Mace, and V.T. Woods. 2021. "Comparison of near-background concentrations of Argon-37 and Xenon-133 in the Atmosphere." Journal of Environmental Radioactivity 233. PNNL-SA-158330. doi:10.1016/j.jenvrad.2021.106590
• Johnson C.M., B.L. Abromeit, T.R. Alexander, J.D. Lowrey, E.K. Mace, M.F. Mayer, and J.I. McIntyre. 2021. Analysis methods for quantifying Xe-127 samples from the UNESE project. PNNL-30870. Richland, WA: Pacific Northwest National Laboratory. Analysis methods for quantifying Xe-127 samples from the UNESE project
• Johnson C.M., J.D. Lowrey, T.R. Alexander, E.K. Mace, and A.M. Prinke. 2021. "Measurements of the emanation of 37Ar and 39Ar from irradiated rocks and powders." Journal of Radioanalytical and Nuclear Chemistry 329, no. 2:969 - 974. PNNL-SA-160972. doi:10.1007/s10967-021-07827-4
• Johnson C.M., J.D. Lowrey, T.R. Alexander, E.K. Mace, and B.J. Riley. 2021. Measurements of emanation of Ar-37 and Ar-39 from irradiated rocks and powders. PNNL-30868. Richland, WA: Pacific Northwest National Laboratory. Measurements of emanation of Ar-37 and Ar-39 from irradiated rocks and powders
• Mirkhosravi F., A. Rashidi, J. Gallagher, M. Monavarian, A.A. Aragon, K. Ahn, and Y. Ooi, et al. 2021. "Impact of high-dose gamma-ray irradiation on electrical characteristics of N-polar and Ga-polar GaN p-n diodes." AIP Advances 11, no. 2:Article No.02500. PNNL-SA-154036. doi:10.1063/5.0021382
• Moore M.E., A.V. Mozhayev, R.S. Wittman, and E.K. Mace. 2021. "Configuration and impurity quantification of AmLi sources using radiography and gamma spectroscopy." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 990. PNNL-SA-154328. doi:10.1016/j.nima.2020.164987
• Mozhayev A.V., M.E. Moore, and E.K. Mace. 2021. "Characterization of Two Extraordinary AmLi Neutron Sources." Applied Radiation and Isotopes 168. PNNL-SA-153547. doi:10.1016/j.apradiso.2020.109472
• Seltzer A.M., D.V. Bekaert, P.H. Barry, K.E. Durkin, E.K. Mace, C.E. Aalseth, and J.C. Zappala, et al. 2021. "Groundwater Residence Time Estimates Obscured by Anthropogenic Carbonate." Science Advances Vol. 7, no. No. 17:eabf3503. PNNL-SA-154074. doi:10.1126/sciadv.abf3503

2020

• Fritz B.G., T.R. Alexander, J.C. Hayes, E.K. Mace, and V.T. Woods. 2020. Measurement of Argon-37 Background Concentrations in the Atmosphere. PNNL-30583. Richland, WA: Pacific Northwest National Laboratory. Measurement of Argon-37 Background Concentrations in the Atmosphere
• Hayes J.C., C.E. Aalseth, T.R. Alexander, H.O. Back, E.D. Church, M.P. Foxe, and T.W. Hossbach, et al. 2020. "High Throughput Argon-37 Field System." Pure and Applied Geophysics. PNNL-SA-149601. doi:10.1007/s00024-020-02584-z

2019

• Johnson C.M., C.E. Aalseth, T.R. Alexander, T.W. Bowyer, V. Chipman, A.R. Day, and S. Drellack, et al. 2019. "Migration of noble gas tracers at the site of an underground nuclear explosion at the Nevada National Security Site." Journal of Environmental Radioactivity 208-209. PNNL-SA-143881. doi:10.1016/j.jenvrad.2019.106047
• Saldanha R.N., H.O. Back, H. Tsang, T.R. Alexander, S.R. Elliott, S.A. Ferrara, and E.K. Mace, et al. 2019. "Cosmogenic production of 39Ar and 37Ar in argon." Physical Review C 100, no. 2:Article No. 024608. PNNL-SA-141556. doi:10.1103/PhysRevC.100.024608

2018

• Fritz B.G., C.E. Aalseth, H.O. Back, J.C. Hayes, P.H. Humble, P. Ivanusa, and E.K. Mace. 2018. "Prediction of sub-surface 37Ar concentrations at locations in the Northwestern United States." Journal of Environmental Radioactivity 181. PNNL-SA-124417. doi:10.1016/j.jenvrad.2017.10.005
• Mace E.K., C.E. Aalseth, A.R. Day, E.W. Hoppe, J.I. McIntyre, A. Seifert, and R.M. Williams. 2018. "Direct Low-Energy Measurement of 37Ar and 127Xe in a Radiotracer Gas using Low-Background Proportional Counters." Journal of Radioanalytical and Nuclear Chemistry 318, no. 1:125-129. PNNL-SA-133392. doi:10.1007/s10967-018-6074-z
• Mace E.K., J.D. Ward, and C.E. Aalseth. 2018. "Use of Neural Networks to Analyze Pulse Shape Data in Low-Background Detectors." Journal of Radioanalytical and Nuclear Chemistry 318, no. 1:117-124. PNNL-SA-133676. doi:10.1007/s10967-018-5983-1

2017

• Mace E.K., C.E. Aalseth, J.M. Brandenberger, A.R. Day, E.W. Hoppe, P.H. Humble, and M.E. Keillor, et al. 2017. "Methods for Using Argon-39 to Age-Date Groundwater using Ultra-Low-Background Proportional Counting." Applied Radiation and Isotopes 126. PNNL-SA-121026. doi:10.1016/j.apradiso.2016.12.037
• Mace E.K., C.E. Aalseth, T.R. Alexander, H.O. Back, A.R. Day, E.W. Hoppe, and M.E. Keillor, et al. 2017. "Simultaneous Measurement of Tritium and Radiocarbon by Ultra-Low-Background Proportional Counting." Applied Radiation and Isotopes 126. PNNL-SA-120393. doi:10.1016/j.apradiso.2016.12.033
• McIntyre J.I., C.E. Aalseth, T.R. Alexander, H.O. Back, B.J. Bellgraph, T.W. Bowyer, and V.D. Chipman, et al. 2017. "Measurements of Argon-39 at theU20az Underground Nuclear Explosion Site." Journal of Environmental Radioactivity 178-179. PNNL-26326. doi:10.1016/j.jenvrad.2017.07.013
• Moran J.J., T.R. Alexander, C.E. Aalseth, H.O. Back, E.K. Mace, C.T. Overman, and A. Seifert, et al. 2017. "Improvements to sample processing and measurement to enable more widespread environmental application of tritium." Applied Radiation and Isotopes 126. PNNL-SA-120318. doi:10.1016/j.apradiso.2017.01.033
• Williams R.M., C.E. Aalseth, J.M. Brandenberger, A.R. Day, E.C. Finn, E.S. Fuller, and E.W. Hoppe, et al. 2017. "Development of a Low-Level 39Ar Calibration Standard - Analysis by Absolute Gas Counting Measurements Augmented with Simulation." Applied Radiation and Isotopes 126. PNNL-SA-120659. doi:10.1016/j.apradiso.2017.02.018

2016

• Aalseth C.E., P.H. Humble, E.K. Mace, J.L. Orrell, A. Seifert, and R.M. Williams. 2016. "Shielding concepts for low-background proportional counter arrays in surface laboratories." Applied Radiation and Isotopes 108. PNNL-SA-106350. doi:10.1016/j.apradiso.2015.12.033
• Bonicalzi R., C.E. Aalseth, A.R. Day, E.W. Hoppe, E.K. Mace, J.J. Moran, and C.T. Overman, et al. 2016. "Optimization of Simultaneous Tritium-Radiocarbon Internal Gas Proportional Counting." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 813. PNNL-SA-111865. doi:10.1016/j.nima.2015.12.062
• Hall J.C., C.E. Aalseth, R. Bonicalzi, J.M. Brandenberger, A.R. Day, P.H. Humble, and E.K. Mace, et al. 2016. "39Ar/Ar measurements using ultra-low background proportional counters." Applied Radiation and Isotopes 107. PNNL-SA-98510. doi:10.1016/j.apradiso.2015.10.006
• Mace E.K., C.E. Aalseth, A.R. Day, E.W. Hoppe, M.E. Keillor, J.J. Moran, and M.E. Panisko, et al. 2016. "First results of a simultaneous measurement of tritium and 14C in an ultra-low-background proportional counter for environmental sources of methane." Journal of Environmental Radioactivity 155-156. PNNL-SA-111748. doi:10.1016/j.jenvrad.2016.02.001
• Olsen K.B., R.R. Kirkham, V.T. Woods, D.A. Haas, J.C. Hayes, T.W. Bowyer, and D.P. Mendoza, et al. 2016. "Noble Gas Migration Experiment to Support the Detection of Underground Nuclear Explosions." Journal of Radioanalytical and Nuclear Chemistry 307, no. 3:2603-2610. PNNL-SA-109064. doi:10.1007/s10967-015-4639-7
• Williams R.M., C.E. Aalseth, T.W. Bowyer, A.R. Day, E.S. Fuller, D.A. Haas, and J.C. Hayes, et al. 2016. "Development of a Low-Level Ar-37 Calibration Standard." Applied Radiation and Isotopes 109. PNNL-SA-109332. doi:10.1016/j.apradiso.2015.12.027

2014

• Kulisek J.A., D.V. Jordan, E.K. Mace, B.S. McDonald, and L.E. Smith. 2014. "Hybrid Enrichment Verification Array: Investigations of the High-Energy Gamma-Ray Signature Origin and Use for Partial Defect Detection." In 55th Annual Meeting of the Institute of Nuclear Materials Management (INMM 2014), July 20-24, 2014, Atlanta, Georgia, 4, 2909-2916. Oakbrook Terrace, Illinois:Institute of Nuclear Materials Management (INMM). PNNL-SA-103359.

2013

• Aalseth C.E., A.R. Day, E.S. Fuller, E.W. Hoppe, M.E. Keillor, B.D. LaFerriere, and E.K. Mace, et al. 2013. "A New Shallow Underground Gas-Proportional Counting Lab - First Results and Ar-37 Sensitivity." Applied Radiation and Isotopes 81. PNNL-SA-89606. doi:10.1016/j.apradiso.2013.03.050
• Aalseth C.E., A.R. Day, E.S. Fuller, E.W. Hoppe, M.E. Keillor, E.K. Mace, and A.W. Myers, et al. 2013. "Digital Pulse-Shape Discrimination Applied to an Ultra-Low-Background Gas-Proportional Counting System: First Results." Journal of Radioanalytical and Nuclear Chemistry 296, no. 2:823-827. PNNL-SA-86923. doi:10.1007/s10967-012-2052-z
• Mace E.K., C.E. Aalseth, R. Bonicalzi, A.R. Day, E.S. Fuller, J.C. Hayes, and E.W. Hoppe, et al. 2013. "Initial Characterization of Unequal-Length, Low-Background Proportional Counters for Absolute Gas-Counting Applications." In LOW RADIOACTIVITY TECHNIQUES 2013 (LRT 2013): Proceedings of the IV International Workshop in Low Radioactivity Techniques, April 10-12, 2013, Assergi, Italy. AIP Conference Proceedings, edited by L Miramonti and L Pandola, 1549, 30. Melville, New York:AIP Publishing. PNNL-SA-96368. doi:10.1063/1.4818069
• Mace E.K., C.E. Aalseth, R. Bonicalzi, A.R. Day, E.W. Hoppe, M.E. Keillor, and A.W. Myers, et al. 2013. "Controlling Low-Rate Signal Path Microdischarge for an Ultra-Low-Background Proportional Counter." Journal of Radioanalytical and Nuclear Chemistry 296, no. 2:753-758. PNNL-SA-86931.
• Seifert A., C.E. Aalseth, A.R. Day, E.S. Fuller, E.W. Hoppe, M.E. Keillor, and E.K. Mace, et al. 2013. "The Design, Construction, and Initial Characterization of an Ultra-Low-Background Gas-Proportional Counting System." Journal of Radioanalytical and Nuclear Chemistry 296, no. 2:915-921. PNNL-SA-86743. doi:10.1007/s10967-012-2059-5
• Seifert A., C.E. Aalseth, R. Bonicalzi, T.W. Bowyer, A.R. Day, E.S. Fuller, and D.A. Haas, et al. 2013. "Calibration of an Ultra-Low-Background Proportional Counter for Measuring 37Ar." In Low Radioactivity Techniques 2013 (LRT 2013): Proceedings of the IV International Workshop in Low Radioactivity Techniques, April 10-12, 2013, Assergi, Italy. AIP Conference Proceedings, edited by L Miramonti and LPandola, 1549, 26-29. Melville, New York:AIP Publishing. PNNL-SA-96364. doi:10.1063/1.4818068
• Williams R.M., C.E. Aalseth, J.H. Ely, A.R. Day, J.C. Hayes, E.W. Hoppe, and B.D. LaFerriere, et al. 2013. "Development of an Absolute Gas-Counting Capability for Low to Medium Activities." Applied Radiation and Isotopes 81. PNNL-SA-89541. doi:10.1016/j.apradiso.2013.03.064

2012

• Aalseth C.E., R. Bonicalzi, M.G. Cantaloub, A.R. Day, L.E. Erikson, J.E. Fast, and J.B. Forrester, et al. 2012. "A Shallow Underground Laboratory for Low-Background Radiation Measurements and Materials Development." Review of Scientific Instruments 83, no. 11:Article No. 113503. PNNL-SA-89084. doi:10.1063/1.4761923

2011

• Aalseth C.E., A.R. Day, D.A. Haas, E.W. Hoppe, B.J. Hyronimus, M.E. Keillor, and E.K. Mace, et al. 2011. "Measurement of 37Ar to support technology for On-site Inspection under the Comprehensive Nuclear-Test-Ban Treaty." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 652, no. 1:58-61. PNNL-SA-73256. doi:10.1016/j.nima.2010.09.135
• Casella A.M., G.A. Warren, M.G. Cantaloub, E.K. Mace, B.S. McDonald, C.T. Overman, and S.L. Pratt, et al. 2011. "Characterization of a New Lead Slowing Down Spectrometer." In Proceedings of the 52nd Annual Meeting of the Institute of Nuclear Materials Management, July 17-21, 2011, Palm Desert, California. Deerfield, Illinois:Institute of Nuclear Materials Management. PNNL-SA-80569.
• Hatchell B.K., P.L. Valdez, C.R. Orton, and E.K. Mace. 2011. "Prototype Radiation Detector Positioning System For The Automated Nondestructive Assay Of Uf6 Cylinders." In 3rd International Joint Topical Meeting on Emergency Preparedness & Response and Robotics & Remote Systems (EPRRSD 2011), August 7-10, 2011, Knoxville, Tennessee, 1, 1-8. Lagrange Park, Illinois:American Nuclear Society. PNNL-SA-79849.
• Kouzes R.T., J.H. Ely, A.T. Lintereur, E.K. Mace, D.L. Stephens, and M.L. Woodring. 2011. "Neutron Detection Gamma Ray Sensitivity Criteria." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 654, no. 1:412-416. PNNL-SA-80140. doi:10.1016/j.nima.2011.07.030
• Mace E.K., and L.E. Smith. 2011. "Automated Nondestructive Assay of UF6 Cylinders: Detector Characterization and Initial Measurements." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 652, no. 1:62-65. PNNL-SA-73397. doi:10.1016/j.nima.2010.09.149
• Mace E.K., C.R. Orton, D.V. Jordan, B.S. McDonald, and L.E. Smith. 2011. "Advancements of the Hybrid Method UF6 Container Inspection System." In INMM 52nd Meeting, July 17-21, 2011, Palm Desert, California. Deerfield, Illinois:Institute of Nuclear Materials Management. PNNL-SA-80550.
• McDonald B.S., D.V. Jordan, C.R. Orton, E.K. Mace, L.E. Smith, and R.S. Wittman. 2011. "MODEL AND ALGORITHM EVALUATION FOR THE HYBRID UF6 CONTAINER INSPECTION SYSTEM." In Proceedings of the 52nd Annual Meeting of the Institute of Nuclear Materials Management, July 17-21, 2011, Palm Desert, California, 3, 2232-2241. Deerfield, Illinois:INMM. PNNL-SA-80596.

2010

• Kouzes R.T., K.E. Conlin, W.J. Kernan, E.K. Mace, E.R. Siciliano, and M.L. Woodring. 2010. "Shielding of Skyshine Interference with Radiation Detection Systems." In IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2009), October 24-November 1, 2009, Orlando, Florida, 134-137. Piscataway, New Jersey:IEEE. PNNL-SA-67659. doi:10.1109/NSSMIC.2009.5401840
• Smith L.E., D.V. Jordan, A.C. Misner, E.K. Mace, and C.R. Orton. 2010. "Enrichment Assay Methods for a UF6 Cylinder Verification Station." In Proceedings of the Symposium on International Safeguards: Preparing for Future Verification Challenges, November 1-5, 2010, Vienna, Austria. Vienna:International Atomic Energy Agency. PNNL-SA-75164.
• Smith L.E., D.V. Jordan, A.C. Misner, E.K. Mace, and C.R. Orton. 2010. "Hybrid Enrichment Assay Methods for a UF6 Cylinder Verification Station." In Proceedings of the 51st Annual Meeting of the Institute of Nuclear Materials Management, July 11-15, 2010, Baltimore, Maryland. Deerfield, Illinois:INMM. PNNL-SA-73766.
• Smith L.E., E.K. Mace, A.C. Misner, and M.W. Shaver. 2010. "Signatures and Methods for the Automated Nondestructive Assay of UF6 Cylinders at Uranium Enrichment Plants." IEEE Transactions on Nuclear Science 57, no. 4:2247-2253. PNNL-SA-69410. doi:10.1109/TNS.2010.2052287

2009

• Kernan W.J., E.K. Mace, E.R. Siciliano, K.E. Conlin, E.L. Flumerfelt, R.T. Kouzes, and M.L. Woodring. 2009. "Modeling and Measurements for Mitigating Interface from Skyshine." In IEEE Nuclear Science Symposium Conference Record (NSS/MIC 2009), October 24-November 1, 2009, Orlando, Florida, 976 - 980. Piscataway, New Jersey:IEEE. PNNL-SA-69151. doi:10.1109/NSSMIC.2009.5402445
• Smith L.E., M.M. Curtis, M.W. Shaver, J.M. Benz, A.C. Misner, E.K. Mace, and D.V. Jordan, et al. 2009. "DEVELOPMENT OF A PORTAL MONITOR FOR UF6 CYLINDER VERIFICATION." In Proceedings of the 50th Annual Meeting of the Institute of Nuclear Materials Management. Deerfield, Illinois:Institute of Nuclear Materials Management. PNNL-SA-66796.