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Energy and Environment Directorate

Forrest Heller

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352
(509) 375-6318

PNNL Publications


  • Lines A.M., G.B. Hall, S.E. Asmussen, J.R. Allred, S.I. Sinkov, F.D. Heller, and N.B. Gallagher, et al. 2020. "Sensor fusion: comprehensive real-time, on-line monitoring for process control via visible, NIR, and Raman spectroscopy." ACS Sensors 5, no. 8:2467-2475. PNNL-SA-151230. doi:10.1021/acssensors.0c00659
  • Lumetta G.J., J.R. Allred, S.E. Asmussen, S.A. Bryan, G.B. Hall, F.D. Heller, and A.M. Lines, et al. 2020. "Progress in Real-time Monitoring for Controlling of the Composition of the Uranium-Plutonium Nitrate Product in a Tri-butyl Phosphate Based Flowsheet." In International Nuclear Fuel Cycle Conference and TOP FUEL 2019 - Light Water Reactor Fuel Performance Conference (GLOBAL 2019), September 22-27, 2019,Seattle, WA, 993-998. La Grange Park, Illinois:American Nuclear Society. PNNL-SA-142791.


  • Asmussen S.E., A.M. Lines, D.R. Bottenus, F.D. Heller, S.A. Bryan, C.H. Delegard, and C.A. Louie, et al. 2019. "In Situ Monitoring and Kinetic Analysis of the Extraction of Nitric Acid by Tributyl Phosphate in n-Dodecane using Raman Spectroscopy." Solvent Extraction and Ion Exchange 37, no. 2:157-172. PNNL-SA-128863. doi:10.1080/07366299.2019.1630071


  • Heller F.D., A.J. Casella, G.J. Lumetta, K.L. Nash, S.I. Sinkov, and S.A. Bryan. 2017. "Incorporating Spectroscopic On-line Monitoring as a Method of Detection for a Lewis Cell Setup." Analyst 142, no. 13:2426-2433. PNNL-SA-124016. doi:10.1039/C7AN00351J

Energy and Environment

Core Research Areas