PNNL

Dr. Friese is an experienced research scientist and laboratory fellow at Pacific Northwest National Laboratory (PNNL) who specializes in radiochemistry and environmental measurements. His career commenced with research in developing methodologies for characterizing nuclear debris, which supported the U.S. nuclear forensics operational program. This expertise naturally transitioned into supporting Comprehensive Nuclear-Test-Ban Treaty (CTBT) initiatives, particularly in environmental characterization of nuclear debris for treaty monitoring purposes. 

Since the mid-2000s, Dr. Friese has significantly contributed to all three pillars of the CTBT verification regime. His work with the International Monitoring System (IMS) includes devising a categorization scheme for detections, coordinating global background measurement campaigns, and providing support to RL-16, the U.S. IMS laboratory managed by PNNL. In collaboration with the International Data Centre, Dr. Friese has also been instrumental in deploying a network of stack monitors at medical isotope production facilities worldwide, enhancing the precision of background release measurements and aiding in radionuclide software development. Additionally, for on-site inspections (OSIs), Dr. Friese developed a comprehensive OSI-relevant radionuclide list in collaboration with P5 colleagues, facilitating treaty verification while safeguarding national security information. His leadership extended to participation in the scenario task force and control team for the 2014 Integrated Field Exercise. 

Dr. Friese has actively supported the U.S. Delegation to Working Group B (WGB) since the mid-2000s, engaging in numerous technical discussions throughout the WGB forum. He also supported technical discussions in various strategic workshops that span the verification regime, such as the International Noble Gas Experiment, the National Data Center workshop, the Expert Technical Analysis workshop, and OSI workshops. Moreover, Dr. Friese is a founder and an active member of the Workshop on Signatures of Medical Isotope Production, which fosters collaboration between the nuclear monitoring community and industrial leaders in medical isotope production to advance nuclear explosion monitoring technologies. 

• Radiochemistry 
• Nuclear detection 
• Nonproliforation 
• Arms control 
• Nuclear forensics 
• Environmental monitoring 

• BS in chemistry, Bethel College 
• PhD in analytical, environmental, and radiochemistry, Washington State University 

Doll CG, Achim P, Amaya D, Auer M, Ball G, Berg R, Bowyer TW, Brown R, Carranza EC, Cameron IM, Camps J, Zhanying C, DeCaire R, Deconninck B, Delcloo A, DeMeutter P, di Tada ML, Dix J, Friese JI, Gheddou A, Goldman I, Gueibe C, Haass C, Hamilton R, Harvey J, Hoffman EL, Imardjoko Y, Ivan AM, Johnson C, Kalinowski MB, Lee J, Lee S, Malkawi A, Marghem A, Meskens G, Moyaux D, Saey PRJ, Schoeppner M, Vandergrift GF, Van der Meer K, Wu S, Zaw C, Zerbo L. "WOSMIP V - Workshop on Signatures of Medical and Industrial Isotope Production," 2016. 

Beck CL, Seiner BN, Smith SC, Bowen JM, Finch ZS, Friese JI. "Kinetic Phosphorescence Analysis to Quantify Europium and Terbium." Journal of Radioanalytical and Nuclear Chemistry, 2015. 

Friese JI, Metz LA, Finn EC, Greenwood LR, Gregory SJ, Arrigo LM, Wittman RS, Seiner BN. "Measurement of relative fission product yields from 12.2 MeV deuteron-induced fission of 240Pu." Journal of Radioanalytical and Nuclear Chemistry, 2015. 

Metz LA, Friese JI, Finn EC, Greenwood LR, Hines CC, King MD, Wall DE. "Fission products measured from highly-enriched uranium irradiated under 10B4C in a research reactor." Journal of Radioanalytical and Nuclear Chemistry, 2015. 

Jiang J, Davies A, Arrigo LM, Friese JI, Seiner BN, Greenwood LR, Finch ZS. "Measurement of 161Tb by Liquid Scintillation Counting." Applied Radiation and Isotopes, 2015. 

Finn EC, Metz LA, Greenwood LR, Pierson B, Wittman RS, Friese JI, Kephart RF. "Cumulative fission yields of short-lived isotopes under natural-abundance-boron-carbide-moderated neutron spectrum." Journal of Radioanalytical and Nuclear Chemistry 301, no. 1 (2015): 79–91. https://doi.org/10.1007/s10967-015-4085-6. 

Finn EC, McNamara BK, Greenwood LR, Wittman RS, Soderquist CZ, Woods VT, VanDevender BA, Metz LA, Friese JI. "Modeling and production of 240Am by deuteron-induced activation of a 240Pu target." Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 349 (2015): 39–44. https://doi.org/10.1016/j.nimb.2015.02.001. 

Morley SM, Seiner BN, Finn EC, Greenwood LR, Smith SC, Gregory SJ, Haney MM, Lucas DD, Arrigo LM, Beacham TA, Swearingen KJ, Friese JI, Douglas M, Metz LA. "Integrated separation scheme for measuring a suite of fission and activation products from a fresh mixed fission and activation product sample." Journal of Radioanalytical and Nuclear Chemistry 304, no. 2 (2015): 509–515. https://doi.org/10.1007/s10967-014-3826-2. 

Metz LA, Bigles C, Bowyer TW, Camps J, Carranza EC, di Tada ML, Dittrich S, Friese JI, Gueibe C, Harvey J, Hoffman EL, Hoffman IT, Ibrahim HM, Lee JS, Liu L, Lucas JC, Mahoney C, McIntyre JI, Nikkinin M, Pitas K, Ridikas D, Saey PR, Sameh AA, Sarkis Z, Vandegrift GF, Updegraff WD. "WOSMIP IV – Workshop on Signatures of Medical and Industrial Isotope Production," 2014. 

Doll CG, CM Sorensen, TW Bowyer, JI Friese, JC Hayes, EL Hoffman, RF Kephart. "Abatement of Xenon and Iodine Emissions from Medical Isotope Production Facilities." Journal of Environmental Radioactivity 130 (2014): 33–43. 

Greenwood LR, RS Wittman, LA Metz, EC Finn, JI Friese. "Design and Testing of a 10B4C Capsule for Spectral-Tailoring in Mixed-Spectrum Reactors." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 743 (2014): 121–123. https://doi.org/10.1016/j.nima.2014.01.013. 

Eslinger PW, JI Friese, JD Lowrey, JI McIntyre, HS Miley, BT Schrom. "Estimates of Radioxenon Released from Southern Hemisphere Medical isotope Production Facilities Using Measured Air Concentrations and Atmospheric Transport Modeling." Journal of Environmental Radioactivity 135 (2014): 94–99. https://doi.org/10.1016/j.jenvrad.2014.04.006. 

Metz LA, JI Friese, EC Finn, LR Greenwood, RF Kephart, CC Hines, MD King, K Henry, DE Wall. "Fission Yield Measurements from Highly Enriched Uranium Irradiated Inside a Boron Carbide Capsule." Journal of Radioanalytical and Nuclear Chemistry 296, no. 2 (2013): 763–767. https://doi.org/10.1007/s10967-012-2089-z. 

Friese JI, RF Kephart, DD Lucas. "Comparison of Radionuclide Ratios in Atmospheric Nuclear Explosions and Nuclear Releases from Chernobyl and Fukushima seen in Gamma Ray Spectrometry." Journal of Radioanalytical and Nuclear Chemistry 296, no. 2 (2013): 899–903. https://doi.org/10.1007/s10967-012-2213-0. 

Miley HS, TW Bowyer, MD Engelmann, PW Eslinger, JI Friese, LR Greenwood, DA Haas, JC Hayes, ME Keillor, RA Kiddy, II, RR Kirkham, JW Landen, EA Lepel, LS Lidey, KE Litke, SJ Morris, KB Olsen, RC Thompson, BR Valenzuela, VT Woods, SR Biegalski. "Measurement of Fukushima Aerosol Debris in Sequim and Richland, WA and Ketchikan, AK." Journal of Radioanalytical and Nuclear Chemistry 296, no. 2 (2013): 877–882. https://doi.org/10.1007/s10967-012-2231-y. 

Pierson BD, EC Finn, JI Friese, LR Greenwood, JD Kephart, RF Kephart, LA Metz. "Identifying and quantifying short-lived fission products from thermal fission of HEU using portable HPGe detectors." Journal of Radioanalytical and Nuclear Chemistry 295, no. 3 (2013): 1881–1885. https://doi.org/10.1007/s10967-012-2109-z. 

Bowyer TW, RF Kephart, PW Eslinger, JI Friese, HS Miley, PR Saey. "Maximum Reasonable Radioxenon Releases from Medical Isotope Production Facilities and Their Effect on Monitoring Nuclear Explosions." Journal of Environmental Radioactivity 115 (2013): 192–200. https://doi.org/10.1016/j.jenvrad.2012.07.018. 

Miley SM, AT Hylden, JI Friese. "Resolution of Uranium Isotopes with Kinetic Phosphorescence Analysis." Journal of Radioanalytical and Nuclear Chemistry 296, no. 2 (2013): 923–925. https://doi.org/10.1007/s10967-012-2264-2. 

Greenwood LR, RS Wittman, BD Pierson, LA Metz, RF Payne, EC Finn, JI Friese. "Design and Testing of a Boron Carbide Capsule for Spectral Tailoring in Mixed-Spectrum Reactors." Journal of ASTM International JAI 9, no. 3 (2012): Article No. JAI103959. 

Finn EC, LA Metz, LR Greenwood, BD Pierson, JI Friese, RF Kephart, JD Kephart. "Short-lived fission product measurements from >0.1 MeV neutron-induced fission using boron carbide." Journal of Radioanalytical and Nuclear Chemistry 293, no. 1 (2012): 267–272. https://doi.org/10.1007/s10967-012-1652-y. 

Pierson BD, LE Erikson, EC Finn, JI Friese, LR Greenwood, DA Haas, JD Kephart, RF Payne. Identifying and quantifying short-lived fission products from thermal fission of HEU using portable HPGe detectors. Pacific Northwest National Laboratory. PNNL-20870, 2012. 

Greenwood LR, RS Wittman, BD Pierson, LA Metz, RF Payne, EC Finn, JI Friese. "Design and Testing of a Boron Carbide Capsule for Spectral Tailoring in Mixed-Spectrum Reactors." Journal of ASTM International JAI 9, no. 3 (2012): Article No. JAI103959. 

Matthews M, P Achim, M Auer, R Bell, TW Bowyer, D Braekers, E Bradley, B Briyatmoko, H Berglund, J Camps, EC Carranza, F Carty, R DeCaire, B Deconninck, LE DeGeer, M Druce, JI Friese, R Hague, I Hoffman, K Khrustalev, JC Lucas, G Mattassi, A Mattila, E Nava, M Nikkinin, C Papastefanou, GR Piefer, E Quintana, O Ross, M Rotty, M Sabzian, PR Saey, AA Sameh, M Safari, M Schoppner, P Siebert, KK Unger, A Vargas. WOSMIP II- Workshop on Signatures of Medical and Industrial Isotope Production. Pacific Northwest National Laboratory. PNNL-21052, 2011. 

Finn EC, LA Metz, RF Payne, JI Friese, LR Greenwood, JD Kephart, BD Pierson, TA Ellis. Methods to Collect, Compile, and Analyze Observed Short-lived Fission Product Gamma Data. Pacific Northwest National Laboratory. PNNL-20141, 2011.