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Researcher

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Timothy Roney, Ph.D.

Research Scientist

Research Areas:
Materials Science and Engineering

Biography:
Timothy Roney, Ph.D., is a research scientist in Materials Science and Engineering (MS&E) with Idaho National Laboratory (INL). He earned his Ph.D. and M.S. at the University of Arizona (both in Optical Sciences), and his B.S. at the University of California at Irvine (Physics). He has been on staff at INL working on nondestructive evaluation and radiation-based imaging for the past 26 years. He is presently group lead for the Digital Radiography and Computed Tomography laboratory and a group lead for the Materials Characterization Group within Materials Science and Engineering. Dr. Roney has been Principal Investigator on several projects at INL including: 1) field portable x-ray digital radiography and computed tomography imaging systems for munitions inspections at remote military sites; 2) 2-D and 3-D x-ray imaging systems for materials characterization; 3) improving system characterization and alignment in x-ray computed tomography; 3) detection and verification of chemical agents in munitions using gamma ray transmission methods; 4) development of multi-modality nuclear assay systems for waste characterization, including active and passive gamma, digital radiography and computed tomography, active and passive neutron measurements, and measurement integration methods; 5) digital radiography and computed tomography of containerized waste; 6) physics-based methods for detection of bulk currency; 7) Air Cargo Inspection. As department manager, Tim lead a group of 30+ scientists, engineers and technicians in materials development, characterization, testing, and nondestructive evaluation.

Education:

​Ph.D., Optical Sciences - University of Arizona

M.S., Optical Sciences - University of Arizona

B.S., Physics - University of California, Irvine

Publications:

​Journal Articles
J. J. Kane, I. J. van Rooyen, A. E Craft, T. J. Roney, S.R. Morrell, Evaluating Quantitative 3 D Image Analysis as a Design Tool for Low Enriched Uranium Fuel Compacts for the Transient Reactor Test Facility: A preliminary study, Nuclear Engineering and Design, 300, pp. 1-11, (15 April, 2016).

 

Selim, F.A., Wells, D.P., Harmon, J.F., Kwofie, J., Spaulding, R., Erickson, G., Roney, T., Bremstrahlung-induced highly penetrating probes for nondestructive assay and defect analysis, Nuclear Instruments and Methods in Physics Research A, 495, (2002).

 

Selim, F.A., D.P. Wells, J. F. Harmon, W. Scates, J. Kwofie, R. Spaulding, S.P. Duttagupta, J.L. Jones, T. White and T. Roney , Doppler Broadening Measurements of Positron Annihilation using Bremsstrahlung Radiation,  Nuclear Instruments and Methods in Physics Research B, 192, (2002).

 

F. Noo, R. Clackdoyle, C. Mennessier, T.A. White, and T. J. Roney, “Analytic method based on identification of ellipse parameters for scanner calibration in cone-beam tomography,” Physics in Medicine and Biology, 45 (2000), pp. 3489-3508.

 

F. Noo, R. Clack, T. J. Roney, T. A. White, “The dual-ellipse cross vertex path for exact reconstruction of long objects in cone-beam tomography”, Phys. Med. Biol., 43, 1998, 797-810.

 

Conference Papers
T. J. Roney, T. A. White, R. J. Pink, M. Smith, W. F. Jones, “Portable gamma-ray transmission system for identification of chemical agents”, Proceedings of the 44th SPIE Annual Meeting, Volume 3769, 1999, pp 11-23.

 

Timothy A. White, Tim Roney, Robert J. Pink, Fred Noo, Rolf Clackdoyle, “Comparison of fan- and cone-beam imaging capabilities on a portable x-ray imaging system”, Proceedings of the 44th SPIE Annual Meeting, Volume 3772, 1999.

 

F. Noo, R. Clackdoyle, T. A. White, T. J. Roney, “Image reconstruction from misaligned truncated helical cone-beam data”, 1999 IEEE Nuclear Science Symposium and Medical Imaging Conference, Seattle, WA. October, 1999.

 

Noo, F., C. Mennessier, R. Clackdoyle, T.A. White, and T.J. Roney, “Non-iterative methods for scanner calibration in cone-beam tomography,” Proceedings of the 1999 International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, Zuiderduin Hotel, Egmond aan Zee, The Netherlands, June23–26, 1999, pp. 155–158.

 

T. J. Roney, “Field portable x-ray and gamma-ray inspection systems for chemical agents”, 37th WANTO (Weapons Agency Nondestructive Testing Organization) Meeting, Feb. 22-26, 1999, Albuquerque, NM.

 

F. Noo, M. Defrise, R. Clack, T. J. Roney, T. A. White, S. G. Galbraith, “Stable and Efficient Shift-Variant Algorithm for Circle-plus-lines Orbits in cone beam CT”, Proceedings ICIP-96: 1996 IEEE International Conference on Image Processing, Lausanne, September, 1996, P Delogne (ed.), IEEE, Ceuterick, Leuven, Belgium, 539-542.

 

T. J. Roney, S. G. Galbraith, T. A. White, M. O’Reilly, R. Clack, M. Defrise, F.Noo, “Feasibility and applications of cone beam x-ray imaging for containerized waste”, Proceedings of the Fourth Nondestructive Assay and Nondestructive Examination Waste Characterization Conference, Salt Lake City, Oct. 24-26, 1995, 295-323.

 

K. C. Mousseau, A. R. Hempstead, G. K. Becker, T. J. Roney, “Waste assay measurement integration system user interface”, Proceedings of the Fourth Nondestructive Assay and Nondestructive Examination Waste Characterization Conference, Salt Lake City, Oct. 24-26, 1995, 387-398.

 

G. K. Becker, T. J. Roney, C. Watts, J. Bennion, “Utility of neural networks in nondestructive waste assay measurement methods”, Proceedings of the Fourth Nondestructive Assay and Nondestructive Examination Waste Characterization Conference, Salt Lake City, Oct. 24-26, 1995, 161-187.

Version: 3.0
Created at 10/10/2016 9:41 AM by Phyllis L. King
Last modified at 4/25/2017 11:12 AM by Phyllis L. King