Physicist
Physicist

Biography

Dr. Richard Jacob joined Pacific Northwest National Laboratory (PNNL) in 2004 as a postdoctoral researcher. As a trained experimental physicist, Jacob has worked on diverse projects in magnetic resonance imaging, CT imaging, radiography, ultrasonic imaging, and ultrasonic modeling. He has the ability to work across a wide range of disciplines and solve a variety of analytical, technical, and practical problems using creative and innovative approaches with strong attention to detail.

As Jacob’s research interests have evolved over the years, he has continued to contribute to multiple projects while coming up to speed rapidly on new applications and technology. Because of the diversity of projects Jacob has worked on, he has developed a unique combination of bench-top and analytical skills and routinely takes projects from start to finish.

Disciplines and Skills

  • ASME Standards
  • Nondestructive Evaluation
  • Nondestructive Testing (NDT)
  • Radiography
  • Technical Writing
  • Ultrasonic Modeling and Simulation
  • Ultrasonic Testing

Education

Doctor of Philosophy, Physics, University of Utah

Bachelor of Science, Physics, Arizona State University

Awards and Recognitions

  • Outstanding Performance Award, Pacific Northwest National Laboratory, 2022
  • Pathway to Excellence Award, Pacific Northwest National Laboratory, 2022
  • Pathway to Excellence Award, Pacific Northwest National Laboratory, 2017
  • Pathway to Excellence Award, Pacific Northwest National Laboratory, 2017
  • Pathway to Excellence Award, Pacific Northwest National Laboratory, 2014
  • Pathway to Excellence Award, Pacific Northwest National Laboratory, 2013
  • Outstanding Performance Award, Pacific Northwest National Laboratory, 2010

Publications

2025

  • Miorelli R., S. Bannouf, H. Sun, P. Ramuhalli, and R.E. Jacob. 2025. "Assessment of classification results of welding defects on UT testing signals in a cross-dataset setting." In NDE in Nuclear Conference, June2 4-26, 2025, Los Angeles, CA. Palo Alto, California:EPRI. PNNL-SA-211858.

2024

  • Jacob R.E., M.S. Prowant, and C.A. Hutchinson. 2024. "Development and Testing of Coarse-grained Models for Ultrasonic Simulations of Cast Austenitic Stainless Steel." Ultrasonics 136. PNNL-SA-184732. doi:10.1016/j.ultras.2023.107157
  • Montgomery R.O., C.A. Hutchinson, N.A. Conway, M.S. Good, R.E. Jacob, I.J. van Rooyen, and W. Chuirazzi, et al. 2024. Results of Post-Process NDE Using Advanced Techniques on AM Parts. PNNL-36747. Richland, WA: Pacific Northwest National Laboratory. Results of Post-Process NDE Using Advanced Techniques on AM Parts
  • Prowant M.S., R.E. Jacob, C.A. Hutchinson, J.M. Harrison, A.E. Holmes, and A.A. Diaz. 2024. Evaluation of Commercial Advanced NDE. PNNL-36928. Richland, WA: Pacific Northwest National Laboratory. Evaluation of Commercial Advanced NDE
  • Sun H., R.E. Jacob, and P. Ramuhalli. 2024. "Classification of Ultrasonic B-Scan Images from Welding Defects Using A Convolutional Neural Network." In Proceedings of the 13th Nuclear Plant Instrumentation, Control & Human-Machine Interface Technologies (NPIC&HMIT 2023), July 15-20, 2023 Knoxville, TN, 272-281. Westmont, Illinois:American Nuclear Society. PNNL-SA-184210.

2023

  • Sun H., P. Ramuhalli, and R.E. Jacob. 2023. "Machine Learning for Ultrasonic Nondestructive Examination of Welding Defects: A Systematic Review." Ultrasonics 127. PNNL-SA-169657. doi:10.1016/j.ultras.2022.106854

2022

2017

  • Ramuhalli P., R.E. Jacob, P.J. MacFarlan, and A.M. Casella. 2017. "Microstructural Characterization of Irradiated U0.7ZrH1.6 Using Ultrasonic Techniques." In Transactions of the American Nuclear Society (ANS 2017), June 11-15, 2017, San Francisco, CA, 116, 361-364. La Grange Park, Illinois:American Nuclear Society. PNNL-SA-123536.

2016

  • Asgharian B., O. Price, S. Kabilan, R.E. Jacob, D.R. Einstein, A.P. Kuprat, and R.A. Corley. 2016. "Development of a Zealand white rabbit deposition model to study inhalation anthrax." Inhalation Toxicology 28, no. 2:80-88. PNNL-SA-121795. doi:10.3109/08958378.2016.1140850
  • Colby S.M., S. Kabilan, R.E. Jacob, A.P. Kuprat, D.R. Einstein, and R.A. Corley. 2016. "Comparison of realistic and idealized breathing patterns in computational models of airflow and vapor dosimetry in the rodent upper respiratory tract." Inhalation Toxicology 28, no. 4:192-202. PNNL-SA-121794. doi:10.3109/08958378.2016.1150367
  • Kabilan S., S.R. Suffield, K.P. Recknagle, R.E. Jacob, D.R. Einstein, A.P. Kuprat, and J.P. Carson, et al. 2016. "Computational Fluid Dynamics Modeling of Bacillus anthracis Spore Deposition in Rabbit and Human Respiratory Airways." Journal of Aerosol Science 99. PNNL-SA-108616. doi:10.1016/j.jaerosci.2016.01.011
  • Prowant M.S., K.M. Denslow, T.L. Moran, R.E. Jacob, T.S. Hartman, S.L. Crawford, and R. Mathews, et al. 2016. "EVALUATION OF ULTRASONIC PHASED-ARRAY FOR DETECTION OF PLANAR FLAWS IN HIGH-DENSITY POLYETHYLENE (HDPE) BUTT-FUSION JOINTS." In ASME Pressure Vessels and Piping Conference (2016), July 17-21, 2016, Vancouver, British Columbia, Canada, 6B: Materials and Fabrication, V06BT06A051; PVP2016-63688,. New York, New York:ASME. PNNL-SA-115837. doi:10.1115/PVP2016-63688

2015

  • Corley R.A., S. Kabilan, A.P. Kuprat, J.P. Carson, R.E. Jacob, K.R. Minard, and J.G. Teeguarden, et al. 2015. "COMPARATIVE RISKS OF ALDEHYDE CONSTITUENTS IN CIGARETTE SMOKE USING TRANSIENT COMPUTATIONAL FLUID DYNAMICS/PHYSIOLOGICALLY BASED PHARMACOKINETIC MODELS OF THE RAT AND HUMAN RESPIRATORY TRACTS." Toxicological Sciences 146, no. 1:65-88. PNNL-SA-106531. doi:10.1093/toxsci/kfv071
  • Jacob R.E., W.J. Lamm, D.R. Einstein, M. Krueger, R.W. Glenny, and R.A. Corley. 2015. "Comparison of CT-derived Ventilation Maps with Deposition Patterns of Inhaled Microspheres in Rats." Experimental Lung Research 41, no. 3:135-145. PNNL-SA-103802. doi:10.3109/01902148.2014.984085
  • Miller F.J., B. Asgharian, J.D. Schroeter, O. Price, R.A. Corley, D.R. Einstein, and R.E. Jacob, et al. 2015. "Respiratory Tract Lung Geometry and Dosimetry Model for Male Sprague-Dawley Rats." Inhalation Toxicology 26, no. 9:524-544. PNNL-SA-98526. doi:10.3109/08958378.2014.925991

2014

  • Cooper W., R. Albertson, R.E. Jacob, and M.W. Westneat. 2014. "Re-description and Reassignment of the Damselfish Abudefduf luridus (Cuvier, 1830) Using Both Traditional and Geometric Morphometric Approaches." Copeia 2014, no. 3:473-480. PNNL-SA-96845. doi:10.1643/CI-13-074
  • Jacob R.E., and J.P. Carson. 2014. "Automated Measurement of Heterogeneity in CT Images of Healthy and Diseased Rat Lungs using Variogram Analysis of an Octree Decomposition." BMC Medical Imaging 14. PNNL-SA-91444. doi:10.1186/1471-2342-14-1
  • Miller F.J., B. Asgharian, J.D. Schroeter, O. Price, R.A. Corley, D.R. Einstein, and R.E. Jacob, et al. 2014. "Respiratory tract lung geometry and dosimetry model for male Sprague-Dawley rats." Inhalation Toxicology 26, no. 9:524-544. PNNL-SA-105401. doi:10.3109/08958378.2014.925991

2013

  • Einstein D.R., A.P. Kuprat, X. Jiao, J.P. Carson, D.M. Einstein, R.A. Corley, and R.E. Jacob. 2013. "An Efficient Algorithm for Mapping Imaging Data to 3D Unstructured Grids in Computational Biomechanics." International Journal for Numerical Methods in Biomedical Engineering 29, no. 1:1-16. PNNL-SA-85247. doi:10.1002/cnm.2489
  • Jacob R.E., J.P. Carson, M. Thomas, and D.R. Einstein. 2013. "Dynamic Multiscale Boundary Conditions for 4D CT Images of Healthy and Emphysematous Rat." PLoS One 8, no. 6:Article No. e65874. PNNL-SA-91208. doi:10.1371/journal.pone.0065874
  • Jacob R.E., M.K. Murphy, J.A. Creim, and J.P. Carson. 2013. "Detecting Radiation-Induced Injury Using Rapid 3D Variogram Analysis of CT Images of Rat Lungs." Academic Radiology 20, no. 10:1264-1271. PNNL-SA-93209. doi:10.1016/j.acra.2013.07.001
  • Jacob R.E., S.M. Colby, S. Kabilan, D.R. Einstein, and J.P. Carson. 2013. "In Situ Casting and Imaging of the Rat Airway Tree for Accurate 3D Reconstruction." Experimental Lung Research 39, no. 6:249-257. PNNL-SA-93540. doi:10.3109/01902148.2013.801535

2012

  • Asgharian B., O. Price, G. McClellan, R.A. Corley, D.R. Einstein, R.E. Jacob, and J.R. Harkema, et al. 2012. "Development of a Rhesus Monkey Lung Geometry Model and Application to Particle Deposition in Comparison to Humans." Inhalation Toxicology 24, no. 13:869-899. PNNL-SA-90451. doi:10.3109/08958378.2012.725782
  • Corley R.A., S. Kabilan, A.P. Kuprat, J.P. Carson, K.R. Minard, R.E. Jacob, and C. Timchalk, et al. 2012. "COMPARATIVE COMPUTATIONAL MODELING OF AIRFLOWS AND VAPOR DOSIMETY IN THE RESPIRATORY TRACTS OF RAT, MONKEY, AND HUMAN." Toxicological Sciences 128, no. 2:500-516. PNNL-SA-83274. doi:10.1093/toxsci/kfs168
  • Minard K.R., A.P. Kuprat, S. Kabilan, R.E. Jacob, D.R. Einstein, J.P. Carson, and R.A. Corley. 2012. "Phase-Contrast MRI and CFD Modeling of Apparent 3He Gas Flow in Rat Pulmonary Airways." Journal of Magnetic Resonance 221. PNNL-SA-85956. doi:10.1016/j.jmr.2012.05.007
  • Neradilek M.B., N. Polissar, D.R. Einstein, R.W. Glenny, K.R. Minard, J.P. Carson, and X. Jiao, et al. 2012. "BRANCH-BASED MODEL FOR THE DIAMETERS OF THE PULMONARY AIRWAYS: ACCOUNTING FOR DEPARTURES FROM SELF-CONSISTENCY AND REGISTRATION ERRORS." The Anatomical Record 295, no. 6:1027-1044. PNNL-SA-84465. doi:10.1002/ar.22476

2011

  • Jacob R.E., and W.J. Lamm. 2011. "Stable Small Animal Mechanical Ventilation for Dynamic Lung Imaging to Support Computational Fluid Dynamics Models." PLoS One 6, no. 11:e27577. PNNL-SA-81079. doi:10.1371/journal.pone.0027577

2010

  • Gierada D.S., J.C. Woods, R.E. Jacob, A.J. Bierhals, C.K. Choong, S.T. Bartel, and Y.V. Chang, et al. 2010. "Emphysema Quantification in Inflation-Fixed Lungs Using Low-Dose Computed Tomography and 3He Magnetic Resonance Imaging." Journal of Computer Assisted Tomography 34, no. 5:773-779. PNNL-SA-71651. doi:10.1097/RCT.0b013e3181e480f9
  • Jacob R.E., B.G. Amidan, J.J. Soelberg, and K.R. Minard. 2010. "In Vivo MRI of Altered Proton Signal Intensity and T2 Relaxation in a Bleomycin Model of Pulmonary Inflammation and Fibrosis." Journal of Magnetic Resonance Imaging 31, no. 5:1091-1099. PNWD-SA-8775. doi:10.1002/jmri.22166

2009

  • Gierada D.S., J.C. Woods, A.J. Bierhals, S.T. Bartel, J.H. Ritter, C.K. Choong, and N.A. Das, et al. 2009. "Effects of Diffusion Time on Short-Range Hyperpolarized 3He Diffusivity Measurements in Emphysema." Journal of Magnetic Resonance Imaging 30, no. 4:801-808. PNNL-SA-67338. doi:10.1002/jmri.21912
  • Jacob R.E., J.P. Carson, K.M. Gideon, B.G. Amidan, C.L. Smith, C.L. Smith, and K.M. Lee. 2009. "Comparison of Two Quantitative Methods of Discerning Airspace Enlargement in Smoke-Exposed Mice." PLoS One 4, no. 8:E6670. PNWD-SA-8320. doi:10.1371/journal.pone.0006670

2008

  • Einstein D.R., B. Neradilak, N. Pollisar, K.R. Minard, C. Wallis, M. Fanucchi, and J.P. Carson, et al. 2008. "An Automated Self-similarity Analysis of the Pulmonary Tree of the Sprague-Dawley Rat." The Anatomical Record 291, no. 12:1628-1648. PNNL-SA-58476. doi:10.1002/ar.20771
  • Jacob R.E., K.R. Minard, G.J. Laicher, and C. Timchalk. 2008. "3D He-3 diffusion MRI as a local in vivo morphometric tool to evaluate emphysematous rat lungs." Journal of Applied Physiology 105. PNNL-SA-59615. doi:10.1152/japplphysiol.90375.2008
  • Minard K.R., R.E. Jacob, G. Laicher, D.R. Einstein, A.P. Kuprat, and R.A. Corley. 2008. "MR Imaging of Apparent 3He Gas Transport in Narrow Pipes and Rodent Airways." Journal of Magnetic Resonance 194, no. 2:182-191. PNNL-SA-59586. doi:10.1016/j.jmr.2008.07.006

2007

  • Jacob R.E., G. Laicher, and K.R. Minard. 2007. "3D MRI of Non-Gaussian 3He Gas Diffusion in the Rat Lung." Journal of Magnetic Resonance 188, no. 2:357-366. PNWD-SA-7836. doi:10.1016/j.jmr.2007.08.014

Selected Publications

2008

  • Jacob RE, KR Minard, G Laicher, C Timchalk. 2008. "3D 3He Diffusion MRI as a local in vivo morphometric tool to evaluate emphysematous rat lungs." Journal of Applied Physiology 105:1291-1300.
  • Minard KR, RE Jacob, G Laicher, DR Einstein, AP Kuprat, and RA Corley. 2008. "MR Imaging of Apparent 3He Gas Transport in Narrow Pipes and Rodent Airways." Journal of Magnetic Resonance 194:182-191.

2006

  • Minard KR, DR Einstein, RE Jacob, S Kabilan, A Kuprat, C Timchalk, L Trease, and RA Corley. 2006. "Application of Magnetic Resonance (MR) Imaging for the Development and Validation of Computational Fluid Dynamic (CFD) Models of the Rat Respiratory System," Inhalation Toxicology 18:787-794.