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Staff information


Kenneth Jarman

Computational Mathematics
Pacific Northwest National Laboratory
PO Box 999
MSIN: K7-90
Richland, WA 99352


Dr. Jarman's research focuses on mathematical and statistical techniques for modeling and simulating radiation detection scenarios and for the analysis of observed and simulated responses from detection systems. The goal of this research is to quantify and improve the performance of detection systems for targeting illicit radiation sources in the midst of a wide variety of confounding benign radiation sources. Dr. Jarman has contributed to decision and evaluation algorithms development for numerous radiation detection projects in recent years, including a preliminary viability study for instrumented containers, the design of a novel low-power passive gamma-ray spectrometer, and an effort focused on the detection of special nuclear materials in search and passageway monitoring scenarios using low-count gamma-ray spectra from mid-resolution detectors.

Education and Credentials

  • Ph.D. Applied Mathematics, University of Colorado at Boulder, 2000.
  • M.S. Applied Mathematics, University of Colorado at Boulder, 1997.
  • B.A. Mathematics, Northwestern University, 1992.

Affiliations and Professional Service

  • The Mathematical Association of America

Awards and Recognitions

  • Laboratory Graduate Fellowship, Pacific Northwest National Laboratory, 1999"2000
  • National Science Foundation Graduate Traineeship 1996"1999
  • University of Colorado Graduate Fellowship, 1996"1997, 1999
  • Phi Beta Kappa, 1992
  • Oliver Marcy Scholar, 1992

PNNL Publications









  • Jarman KD, RC Runkle, KK Anderson, and DM Pfund. 2008. "A Comparison of Simple Algorithms for Gamma-ray Spectrometers in Radioactive Source Search Applications." Applied Radiation and Isotopes 66(3):362-371.  doi:10.1016/j.apradiso.2007.09.010
  • Anderson KK, KD Jarman, ML Mann, DM Pfund, and RC Runkle. 2008. "Discriminating Nuclear Threats from Benign Sources in Gamma-ray Spectra using a Spectral Comparison Ratio Method." Journal of Radioanalytical and Nuclear Chemistry 276(3):713-718. 


  • Pfund DM, RC Runkle, KK Anderson, and KD Jarman. 2007. "Examination of Count-starved Gamma Spectra Using the Method of Spectral Comparison Ratios ." IEEE Transactions on Nuclear Science 54(4 (Pt.3)):1232-1238.  doi:10.1109/TNS.2007.901202


  • Jarman KD, LE Smith, A Heredia-Langner, AS Renholds, WR Kaye, and SD Miller. 2005. "Optimal Design of Passive Gamma-Ray Spectrometers." In Nuclear Science Symposium Conference Record, 2005 IEEE, vol. 2, pp. 1062-1066.  Institute of Electrical and Electronics Engineers, Inc. (IEEE), Los Alamitos, CA.  doi:10.1109/NSSMIC.2005.1596435


  • Heredia-Langner A, WR Cannon, KD Jarman, and KH Jarman. 2004. "Sequence optimization as an alternative to de novo analysis of tandem mass spectrometry data." Bioinformatics 20(14):2296-2304. 



  • Jarman KD, and TF Russell. 2002. "Analysis of I-D Moment Equations for Immiscible Flow." In Fluid Flow and Transport in Porous Media: Mathematical and Numerical Treatment (Proceedings of an AMS-IMS-SIAM Joint Summer Research Conference on Fluid Flow and Transport in Porous Media, June 17-21, 2001), ed. Zhangxin Chen, Richard E. Ewing, p. 293.  American Mathematical Society, Providence, RI. 

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