Shaheen A Dewji

Shaheen A. Dewji

Shaheen A Dewji

Radiological Scientist, Center for Radiation Protection Knowledge, Environmental Sciences Division

Bio

Shaheen Dewji is a scientist at Oak Ridge National Laboratory in the Center for Radiation Protection Knowledge. Her recent work has included assessment of patient release criteria for iodine-131 patients for the U.S. Nuclear Regulatory Commission, as well as updates to the U.S. Environmental Protection Agency's Federal Guidance Report (FGR) 12 on external exposure to radionuclides in environmental media and FGR 13 on dose coefficients and radiation risk associated with the inhalation and ingestion of radionuclides. Prior, Dr. Dewji spent five productive years with the Safeguards and Security Technology Group as a Nondestructive Assay Systems Engineer, where she employed gamma-ray methods for developing material control and accountancy for front and back ends of the fuel cycle through verification and validation experiments in the Safeguards Laboratory on enrichment, holdup (MUF), and signature analysis.

As a nuclear engineer, Dewji completed her M.Sc. and Ph.D. in Nuclear and Radiological Engineering at the Georgia Institute of Technology, having studied at both the Atlanta, GA, USA and Metz, France campuses. Dewji received her B.Sc. in Physics from the University of British Columbia, where she participated in the Science Co-op and Education Abroad programs.

Dewji currently serves as a member of the National Council on Radiation Protection and Measurements (NCRP) - CC2 Meeting the Needs of the Nation for Radiation Protection, as well as serves as United States representative on the ISO/TC 85/SC2 - Population Monitoring Following a Radiological Accident international working group.

Dewji's specializations include:

Radiation Protection and Dosimetry

  • Internal and external dosimetry
  • Monte Carlo (MCNP) computational simulation of anthropomorphic phantoms
  • Radionuclide patient release following nuclear medicine procedures
  • Population monitoring during a nuclear or radiological (IND/RDD) event
  • Monte Carlo computational detector validation (NaI, LaBr3, HPGe) in contaminated environmental media 

Nuclear Material Control and Accountability

  • Monte Carlo detector validation (NaI, LaBr3, HPGe) with special nuclear material
  • Nuclear material control and accountability experimental measurements: Enrichment and hold-up (MUF)
  • Nuclear forensics and non-proliferation policy

Strategic Leadership

Visit: 

Advancing a legacy of health physics: Shaheen Dewji

Center for Radiation Protection Knowledge

 
 
 

Awards

Oak Ridge National Laboratory – Environmental Sciences Division – Science Serving Society (2016) “Awarded to person/team who enhance(s) the recognition, appreciation and support for projects, initiatives, and staff in ESD that have demonstrable impacts on policy development, environmental management, or decision-making within public or private organizations and institutions. Such work evidences tangible returns on R&D investment with respect to improving social, economic, and ecological well-being.”

American Nuclear Society (2005-Present)

  • Division Governance
    • Radiation Protection, and Shielding Division (RPSD): 2017-2018 Vice Chair, 2013-2017 Treasurer, 2012-2013 Secretary, 2009-2012 Executive Committee Member
    • Nuclear Nonproliferation Policy Division (NNPD): 2017-2018 Chair, 2016-2017 Vice Chair, 2015-2016 Secretary, 2014-2015 Treasurer, 2011-2014 Executive Committee Member,  2009-2011 Special Committee on Nuclear Nonproliferation (Appointed)
  • Professional Women in ANS (PWANS): 2012-2016 Appointed Member 
 
 
 

Projects

  • Computation of age- and sex-specific dose coefficients for exposure and uptake of fission products during a radiological/nuclear accident or incident for the Centers for Disease Control and Prevention.
  • Preliminary reconstruction of doses for occupational/legacy Pu workers as part of dosimetric and epidemiological “Million Person [Worker]” study with the NCRP.
  • Calculation of Specific Absorbed Fraction (SAFs) using MCNP adult/pre-adult voxel phantoms for calculation of radionuclide dose coefficients supporting Environmental Protection Agency - Office of Air and Radiation (Federal Guidance Reports 16) and United States Nuclear Regulatory Commission rulemaking (10CFR 20/10CFR50), as well as development of SAF international standard values for the International Commission on Radiological Protection (Committee 2).
  • Conducting validation and quality assurance calculations using MCNP for adults and pre-adult voxel and stylized phantoms in contaminated air submersion environment for supporting Environmental Protection Agency (Federal Guidance Report 15).
  • Calculation of dose coefficients and DACs for noble gases for US-NRC 10CFR 20 Appendix B - Annual Limits on Intake (ALIs) and Derived Air Concentrations (DACs) of Radionuclides for Occupational Exposure; Effluent Concentrations; Concentrations for Release to Sewerage using ICRP adult voxel phantoms in various room sizes for United States Nuclear Regulatory Commission and international standard values for the International Commission on Radiological Protection.
  • Evaluating patient release criteria for doses to members of the public from patients treated with 131I for hyperthyroidism and differentiated thyroid cancer through MCNP phantom simulation (PIMAL) and biokinetic modeling for the United States Nuclear Regulatory Commission (Regulatory Guide NUREG 8.39 Release of Patients Administered Radioactive Materials).
  • Project management, development, testing, implementation and training development of stylized phantom with articulated/moveable limbs, Phantom with Moving Arms and Legs (PIMAL) software for United States Nuclear Regulatory Commission.
 
 

Publications

PEER-REVIEWED JOURNALS

  1. S. A. Dewji, K. L. Reed, M. Hiller, Comparison of Organ Doses for PIMAL Stylized Phantoms in Upright and Bent Positions for Standard Irradiation Geometries. Radiation and Environmental Biophysics (DOI 10.1007/s00411-017-0698-1). June 2017 
  2. K.G. Veinot, M.B. Bellamy, K.F. Eckerman, M.M. Hiller, S.A. Dewji, C.E. Easterly, N.E. Hertel, R.W. Leggett, R. Manger. Effective Dose Rate Coefficients for Exposure to Contaminated Soil. Radiation and Environmental Biophysics (DOI: 10.1007/s00411-017-0692-7). May 2017
  3. M. Hiller, S. Dewji. Comparison of Monoenergetic Photon Organ Dose Rate Coefficients for the Female Stylized and Voxel Phantoms Submerged in Air. Radiation Protection Dosimetry (DOI: 10.1093/rpd/ncw354). Feb. 2017
  4. S. Dewji, Critical Issues in Radiation Protection Knowledge Management for Preserving Radiation Protection Research and Development Capabilities. Health Physics Journal (DOI: 10.1097/HP.0000000000000603). Jan. 2017
  5. S. Dewji, S. Croft, N. Hertel. Sensitivity Analysis of High Resolution Gamma-ray Detection for Safeguards Monitoring at Natural Uranium Conversion Facilities. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment and Nuclear Instruments (DOI: 10.1016/j.nima.2016.12.018). Dec. 2016
  6. M.B. Bellamy, K.F. Eckerman, K.G. Veinot, M.M. Hiller, S.A. Dewji, C.E. Easterly, N.E. Hertel, R.W. Leggett, R.P. Manger. Effective Dose Rate Coefficients for Immersions in Radioactive Air and Water. Radiation Protection Dosimetry (DOI: 10.1093/rpd/ncw103). May 2016
  7. S. Dewji, N. Hertel, S. Croft, D. Lee, J. Chapman, R. McElroy. Validation of Gamma-Ray Detection Techniques for Safeguards Monitoring at Natural Uranium Conversion Facilities. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment and Nuclear Instruments (DOI: 10.1016/j.nima.2016.03.069). Mar. 2016
  8. M. B. Bellamy, M. Hiller, S. A. Dewji, R. W. Leggett, K. F. Eckerman, C. E. Easterly, N. E. Hertel. Comparison of Organ Dose for Stylized and Voxel Phantoms Monoenergetic Photons in Air Submersion. Radiation Protection Dosimetry (DOI: 10.1093/rpd/ncv548). Feb. 2016
  9. S. Dewji, M. Bellamy, N. Hertel, R. Leggett, S. Sherbini, M. Saba, K. Eckerman.Assessment of Point Source Method for Estimating Doses to Members of the Public from Exposure to Patients with 131I Thyroid Treatment. Health Physics Journal (DOI 10.1097/HP.0000000000000327). Aug. 2015
  10. S. Dewji, M. Bellamy, N. Hertel, R. Leggett, S. Sherbini, M. Saba, K. Eckerman. Estimated Doses to Members of the Public from External Exposure to Patients with 131I Treatment. Medical Physics (DOI: 10.1118/1.4915084). April 2015
  11. S. Dewji, N. Hertel, and A. Ansari. Assessing Internal Contamination After a Radiological Dispersion Device Using a 2x2-inch Sodium Iodide Detector. Radiation Protection Dosimetry (DOI 10.1093/rpd/nct014). July 2013

 

CONFERENCE PAPER TRANSACTIONS AND PROCEEDINGS

  1. S. Dewji, E. Sanchez, K. L. Reed, K. Bales, M. Green, M. Hiller, T. Oxenberg. PIMAL: A GUI-Driven Software Package to Conduct Radiation Dose Estimation Using Realistic Postures. 6th International Workshop on Computational Human Phantoms – Annapolis, MD, USA. Aug. 2017
  2. K. Veinot, S. A. Dewji, M. Hiller, K. Eckerman, C. Easterly. Enhanced Monte Carlo Simulation of the Voxel Phantom Lattice Submersed in a Contaminated Air Environment. Transactions of the American Nuclear Society - San Francisco, CA, USA. June 2017
  3. S. Dewji, M. Hiller, K. Bales, E. Sanchez, N.E. Hertel. Comparison of Neutron Organ Doses for PIMAL Stylized Phantom in Upright and Bent Positions for Standard Irradiation Geometries. Neutron and Ion Dosimetry Symposium (NEUDOS13) - Krakow, Poland.  May 2017
  4. R. Gaudet, S. Dewji, S. Poe, M. Einwechter, K. Glynn, W. Mei, Next Generation Safeguards Initiative Human Capital Development Roadmap: Assessing Temporal Trends in Nuclear Safeguards Core Capabilities. Proceedings of the 57th Annual Institute of Nuclear Materials Management - Atlanta, GA, USA. July 2016
  5. S. Dewji, M. Hiller, N. Hertel, S. Sherbini, M. Saba, PIMAL: A GUI-Driven Software Package To Conduct Radiation Dose Assessments Using Realistic Phantom Postures. 14th Congress of the International Radiation Protection Association - Cape Town, South Africa. May 2016
  6. M. B. Bellamy, K. Veinot, M. M. Hiller, S.A. Dewji, K. F. Eckerman, C. E. Easterly, N. E. Hertel, R. W. Leggett, Comparison of Federal Guidance Reports 12 and 15: External Exposure to Radionuclides in Soil, Air, and Water. 14th Congress of the International Radiation Protection Association - Cape Town, South Africa. May 2016
  7. G. V. Walford, S. A. Dewji, F. H. Dubose, D. W. Roberts, A. D. Nicholson, S. Croft, S. Branney, G. R. Peacock, L. F. Miller, J. A. Chapman. Quality Improvements in Calibration and Use of Portable Holdup Detectors for Uranium and Plutonium Fissile Deposits. Proceedings of the 56th Annual Institute of Nuclear Materials Management - Indian Wells, CA, USA. July 2015
  8. N. Nelson, Y. Azmy, R. P. Gardner, J. Mattingly, R. Smith, L. Worrall, S. Dewji. Validation and Uncertainty Quantification of Detector Response Functions for a 1x2" NaI Collimated Detector. Transactions of the American Nuclear Society. Volume 107/Number 1/ November 2012/Pages 234-235 - San Antonio, TX, USA. June 2015
  9. S A. Dewji, M. Bellamy, N. E. Hertel, R. Leggett, K. Eckerman, S. Sherbini , M. Saba. Estimated External Doses to Members of the Public from Patients with 131I Treatment. Proceedings of the 18th Topical Meeting of the American Nuclear Society Radiation Protection and Shielding Division (RPSD 2014). Sept. 2014
  10. N. Hertel, M. Bellamy, S. Dewji, R. Leggett, K. Eckerman, S. Sherbini and M. Saba. Estimates of Internal Dose Resulting from I-131 Patients in Hotels. Proceedings of the 18th Topical Meeting of the American Nuclear Society Radiation Protection and Shielding Division (RPSD 2014). Sept. 2014
  11. G. S. Mickum, S. A. Dewji, R. D. McElroy, N. Hertel, Evaluation of Hybrid K-Edge Densitometer for Safeguarding Pyroprocessing Activities. Proceedings of the 55th Annual Institute of Nuclear Materials Management - Atlanta, GA, USA. July 2014
  12. S. Dewji, University Programs for Nuclear Security Education. Transactions of the American Nuclear Society. Volume 109/ Number 1/ November 2013 - Washington, DC,USA (Invited). Nov. 2013
  13. S. A. Dewji, D. Lee, S. Croft, R. McElroy, N. E. Hertel, J. A. Chapman, S. Cleveland, Development of Integrated Online Monitoring Systems for Detection of Diversion at Natural Uranium Conversion Facilities. Proceedings of the 54th Annual Institute of Nuclear Materials Management Meeting - Palm Desert, CA, USA. July 2013
  14. M. Scholz, S. Dewji, S. Poe, L. Finklea, 2013 Snapshot of NGSI Human Capital Development and Future Roadmap. Proceedings of the 54th Annual Institute of Nuclear Materials Management Meeting - Palm Desert, CA, USA. July 2013
  15. D. Lee, S. Dewji, M. Ketron, Optimization of the Uranyl Nitrate Calibration Loop Equipment (UNCLE) for Simulating Front-End Commercial Facility Conditions for Safeguards Instrumentation. Transactions of the American Nuclear Society. Volume 107/ Number 1/ November 2012/Pages 234-235 - San Diego, CA, USA. Nov. 2012
  16. S. Dewji, R. McElroy, D. Lee, J. A. Chapman, N. E. Hertel, Detector Validation and Source Term Analysis of Uranyl Nitrate to Detect Diversion at Natural Uranium Conversion Facilities. Proceedings of the 53rd Annual Institute of Nuclear Materials Management Meeting - Orlando, FL, USA. July 2012
  17. D. Lee, S. Dewji, M. Ketron, Transforming the Uranyl Nitrate Calibration Loop Equipment (UNCLE) at ORNL into a User Facility. Proceedings of the 53rd Annual Institute of Nuclear Materials Management Meeting - Orlando, FL, USA. July 2012
  18. D. Lee, J. Ladd-Lively, E. Rauch, J. A. Chapman, S. Dewji, Using the Uranyl Nitrate Calibration Loop Equipment (UNCLE) at ORNL for Safeguards Instrumentation.Transactions of the American Nuclear Society. Volume 105/Number 1/November 2011/Pages 258-259 - Washington, DC, USA. Nov. 2011
  19. D. Lee, J. Ladd-Lively, C. W. Chase, J. Chapman, S. Dewji, E. Rauch, Status Update: Calibration of Safeguards Monitors using the Uranyl Nitrate Calibration Loop Equipment (UNCLE) at ORNL. Proceedings of the 52nd Annual Institute of Nuclear
  20. Materials Management Meeting - Palm Desert, CA, USA. July 2011
  21. S. Dewji, J. A. Chapman, D. Lee, E. Rauch, N. Hertel, Use of the UNCLE Facility to Assess Integrated Online Monitoring Systems for Detection of Diversion at Uranium Conversion Facilities. Proceedings of the 52nd Annual Institute of Nuclear Materials Management Meeting - Palm Desert, CA, USA. July 2011
  22. S. Dewji, N. Hertel, Benchmarking Safeguards and Nonproliferation Education: A  Heuristic Approach. Transactions of the American Nuclear Society. Volume 104/Number 1/June 2011/Pages 189-190 - Hollywood, FL, USA. June 2011
  23. S. Dewji and A. Stulberg, Is Nuclear Forensics an Effective Deterrent Against Nuclear Smuggling and Terrorism- Proceedings of the 51st Annual Institute of Nuclear Materials Management Meeting - Baltimore, MD, USA. June 2010
  24. N.E. Hertel, R. Manger, S. Scarboro, C. Lobracco, S. Dewji, M. Bellamy, E. Burgett, M. Shannon. Assessing internal contamination after an RDD event. 12th Congress of the International Radiation Protection Association - Buenos Aires, Argentina. Oct. 2008
  25. R. Kreh, S. Dewji, Estimation of Personal Dose while Processing NORM-Contaminated Metal Scrap. Processing of the International Symposium: Naturally Occurring Radioactive Material (NORM V). ISBN 978-92-0-101508-2; Aug 2008; p. 339-350 - Seville, Spain. Aug. 2008
  26. S. Scarboro, N. Hertel, R. Manger, C. LoBracco, S. Dewji, E. Burgett, M. Bellamy, M. Shannon, Assaying Internal Contamination due to Inhalation Using Various Handheld Detectors. Transactions of the American Nuclear Society. Volume 98/Number 1/June 2008/Pages 787-788 - Anaheim, CA, USA. June 2008

 

CONFERENCE ABSTRACT TRANSACTIONS AND PROCEEDINGS

  1. E. Sanchez, S.A. Dewji. Correlation of TLD Placement and Organ Dose for Adult  Reference Phantoms in Articulated Positions. Proceedings of the 62nd Annual Meeting of the Health Physics Society - Raleigh, NC, USA. July 2017
  2. S.A. Dewji, K. Bales, M. Hiller. Computation of Neutron Dose Coefficients for PIMAL Stylized Phantoms in Upright and Bent Positions in Standard Irradiation Geometries. Proceedings of the 62nd Annual Meeting of the Health Physics Society - Raleigh, NC,USA. July 2017
  3. S.A. Dewji, K.L Reed, M. Hiller. Computation of Photon Effective Dose Coefficients for PIMAL Stylized Phantoms in Upright and Bent Positions in Standard Irradiation Geometries. Proceedings of the 62nd Annual Meeting of the Health Physics Society - Raleigh, NC, USA. July 2017
  4. S.A. Dewji, M. Green, E. Sanchez. Organ and Effective Photon Dose Coefficients for Reference Phantoms in Articulated Positions in Cranial and Caudal Irradiation Geometries. Proceedings of the 62nd Annual Meeting of the Health Physics Society - Raleigh, NC, USA. July 2017
  5. K.G. Veinot, S.A. Dewji, M.M. Hiller, K.F. Eckerman, C.E. Easterly, N.E. Hertel. Room Submersion Calculations of Noble Gas Dose Rate Coefficients. Proceedings of the 50th Mid-Year Meeting of the Health Physics Society - Bethesda, MD, USA. Jan. 2017
  6. K. L. Reed, S. Dewji, M. Hiller. Comparison of Organ Doses for PIMAL Stylized Phantoms in Upright and Bent Positions for Various Irradiation Geometries. Proceedings of the 50th Mid-Year Meeting of the Health Physics Society - Bethesda,MD, USA. Jan. 2017
  7. S. Dewji, M. Hiller. Radiological Toolbox 3.0.0. Proceedings of the 50th Mid-Year Meeting of the Health Physics Society - Bethesda, MD, USA. Jan. 2017
  8. S. Dewji, K. L. Reed, M. Hiller. Comparison of Organ Doses for PIMAL Stylized Phantoms in Upright and Bent Positions for Standard Irradiation Geometries. Radiation Protection Week 2016 - Oxford, UK. Sept. 2016
  9. S. Dewji. Doses to Members of the Public from I-131 Patient Release. Proceedings of the 61st Annual Meeting of the Health Physics Society - Spokane, WA, USA. (Invited) July 2016
  10. M. Hiller and S. Dewji. Future Challenges in Computational Radiation Dosimetry - How Precise Do We Need to Get- Proceedings of the 61st Annual Meeting of the Health Physics Society - Spokane, WA, USA. (Invited) July 2016
  11. K. Veinot, S. Dewji, M. Bellamy, K. Eckerman, N. Hertel, M. Hiller, Room Submersion Calculations of Noble Gas Dose Rate Coefficients. 14th Congress of the International Radiation Protection Association - Cape Town, South Africa. May 2016
  12. S. Dewji, M. Hiller, N. Hertel, S. Sherbini, M. Saba, PIMAL: A GUI-Driven Software Package To Conduct Radiation Dose Assessments Using Realistic Phantom Postures. 14th Congress of the International Radiation Protection Association - Cape Town, South Africa. May 2016
  13. M. B. Bellamy, K. Veinot, M. M. Hiller, S.A. Dewji, K. F. Eckerman, C. E. Easterly, N. E. Hertel, R. W. Leggett, Comparison of Federal Guidance Reports 12 and 15: External Exposure to Radionuclides in Soil, Air, and Water. 14th Congress of the International Radiation Protection Association - Cape Town, South Africa. May 2016
  14. S. Dewji. Critical Issues in Knowledge Management in Domestic Radiation Protection Research Capabilities. 2016 National Council on Radiation Protection and Measurements Annual Meeting - Bethesda, MD, USA. (Invited) April 2016
  15. M. Bellamy, S. Dewji, G. Kora, Mauritius Hiller, N. Hertel, K. Eckerman, S. Sherbini, M. Saba. Enhancements to the Phantom wIth Moving Arms and Legs Software (PIMAL 4.0). Proceedings of the 49th Mid-Year Meeting of the Health Physics Society - Austin, TX, USA. Jan. 2016
  16. M. B. Bellamy, M. M. Hiller, S. A. Dewji, K. G. Veinot, R. W. Leggett, K. F. Eckerman, C. E. Easterly, N. E. Hertel. Comparison of Monoenergetic Photon Organ Dose Rate Coefficients for Stylize and Voxel Phantoms Submerged in Air. Proceedings of the 49th Mid-Year Meeting of the Health Physics Society - Austin, TX, USA. Jan. 2016
  17. S. A. Dewji, N. E. Hertel. Critical Issues in Knowledge Management in Domestic Radiation Protection Research Capabilities. Proceedings of the 60th Annual Meeting of the Health Physics Society - Indianapolis, IN, USA. (Invited) July 2015
  18. S. A. Dewji, M. Bellamy, N. E. Hertel, R. Leggett, K. Eckerman, S. Sherbini, M. Saba, Estimated Doses to Members of the Public from Exposure to Patients with 131I Thyroid Treatment. Part I: Comparison to Point Source Methods. Proceedings of the 59th Annual Meeting of the Health Physics Society - Baltimore, MD, USA. July 2014
  19. S. A. Dewji, M. Bellamy, N. E. Hertel, R. Leggett, K. Eckerman, S. Sherbini, M. Saba, Estimated Doses to Members of the Public from Exposure to Patients with 131I Thyroid Treatment. Part II: Dose to the Persons Riding Public Transportation. Proceedings of the 59th Annual Meeting of the Health Physics Society - Baltimore, MD, USA. July 2014
  20. S. A. Dewji, M. Bellamy, N. E. Hertel, R. Leggett, K. Eckerman, S. Sherbini, M. Saba, Estimated Doses to Members of the Public from Exposure to Patients with 131I Thyroid Treatment. Part III: Dose to the Occupants in Nursing Homes and Hotels, Proceedings of the 59th Annual Meeting of the Health Physics Society - Baltimore, MD, USA. July 2014
  21. N. E. Hertel, M. Bellamy, S. Dewji, R. Leggett, K. Eckerman, S. Sherbini, M. Saba, Some Estimates of Internal Doses due to I-131 Patients. Proceedings of the 59th Annual Meeting of the Health Physics Society - Baltimore, MD, USA. July 2014
  22. S. Dewji, J. A. Chapman, D. Lee, Technical Considerations on Concepts, Approaches, and Issues for Processing and Control of Uranium Ore Concentrates. Proceedings of the American Nuclear Society/ Institute of Nuclear Materials Management 9th International Conference Facilities Operations - Safeguards Interface - Savannah, GA, USA. Sept. 2012
  23. S. Dewji, R. McElroy, D. Lee, D, J. A. Chapman, N. E. Hertel, S. L. Cleveland, Source Term Analysis of Uranyl Nitrate to Detect Diversion at Natural Uranium Conversion Facilities. Proceedings of the American Nuclear Society/ Institute of Nuclear Materials Management 9th International Conference Facilities Operations - Safeguards Interface - Savannah, GA, USA. Sept. 2012
  24. S. Dewji, N. Hertel, A. Ansari, Assessing Internal Contamination After a Radiological Dispersion Device Using a 2×2-inch Sodium Iodide Detector. 1st James E. Turner Memorial Symposium of the East Tennessee Chapter - Health Physics Society - Oak Ridge, TN, USA. April 2012
  25. S. Dewji, J. A. Chapman, D. Lee, Source Term Analysis of Uranyl Nitrate in UNCLE Facility to Detect Diversion at Natural Uranium Conversion Facilities. Proceedings of the Institute of Nuclear Materials Management Central Chapter Meeting - Oak Ridge, TN, USA. Oct. 2011
  26. M. R. Buckner, B. Cross, W. Burchill, P. Nelson, S. Nesbit, D. Boyle, T. Bjornard, S. Dewji, M. Eddy, Current Efforts Toward Sustainable Nonproliferation Policy. World Nuclear Fuel Cycle 2011 - Chicago, IL, USA. Oct. 2010
  27. S. Dewji, J. A. Chapman, Nondestructive Assay System Design Considerations for a "Safeguards-by-Design" Concept and Approach. Proceedings of the Institute of Nuclear Materials Management Central Chapter Meeting - Knoxville, TN, USA.  July 2010
  28. S. Dewji, N. Hertel, S. Scarboro, R. Manger, Assessing Internal Contamination After an RDD Event Using Readily Available NaI Detectors. Proceedings of the 53rd Annual Meeting of the Health Physics Society - Pittsburgh, PA, USA. July 2008
  29. N. E. Hertel, M. Shannon, E. Burgett, K. Burns, D. Blaylock, S. Dewji, C. LoBracco, Testing of a Novel Shielding Material in High Energy Particle Beams. Proceedings of the 52nd Annual Meeting of the Health Physics Society - Portland, OR, USA. July 2007
  30. S. Dewji, A. Bridges, N. Hertel, K. Burns, Estimating Dose to Healthcare Providers After an RDD Event. 52nd Annual Meeting of the Health Physics Society - Portland, OR, USA. July 2007
  31. S. Dewji, N. Hertel, M. Shannon, E. Burgett, K. Burns, D. Blaylock, E. Grulke, C. Harrison, Radiation Shielding Evaluation of Novel Nano-Particle Space Shielding Materials. Canadian Association of Physicists Congress - Saskatoon, SK, Canada. June 2007

 

ARTICLES

  1. S. Dewji, R. C. Robinson, G. Carpenter, R. Bahran, S. Nesbit. From Prague to Paris: Balancing the Nonproliferation/Climate Change Nexus. Nuclear News, American Nuclear Society, September 2016. Sept. 2016
  2. S. Dewji. Can Nuclear Forensics Deter Nuclear Terrorism- A Collection of Papers from the 2011 Nuclear Scholars Initiative. Center for Strategic and International Studies. (http://csis.org/files/publication/111123_Jansson_NuclearScholar_web.pdf) June 2011
  3. S. Dewji, M. Eddy, and R. Bari. How Proliferation Resistant is Resistant Enough-Nuclear News, American Nuclear Society, November 2010. Nov. 2010

 

TECHNICAL REPORTS

  1. R. Leggett, M. Bellamy, S. Dewji, C. Easterly, K. Eckerman, N. Hertel, M. Hiller, D. Jokisch, D. Pawel, R. Ward. Federal Guidance Report No. 16: Cancer Risk Coefficients for Environmental Exposure to Radionuclides. Environmental Protection Agency. Feb. 2016 (In Review)
  2. M. B. Bellamy, S. A. Dewji, R. W. Leggett, M. Hiller, K. Veinot, R. P. Manger, K. F. Eckerman, J. C. Ryman, C. E. Easterly, N. E. Hertel, D. J. Stewart. Environmental Protection Agency Federal Guidance Report No. 15: External Exposure to Radionuclides in Soil, Air, and Water. Environmental Protection Agency. Feb. 2016 (In Review)
  3. S. Dewji, S. Poe, M. Carringer, Human Capital Roadmap in Safeguards and Nonproliferation Education, Training and Knowledge Retention - FY15 Snapshot on Metrics Development, ORNL/TM-2015/553. Sponsor Controlled Distribution. Dec. 2015
  4. M. Bellamy, S. A. Dewji, K. F. Eckerman, C. Easterly, N. E. Hertel, M. M. Hiller, D. W. Jokisch, R. W. Leggett, S. O. Schwahn, P. A. Scofield, K. G. Veinot, R. Ward, Technical Basis for Derivation of Dose Coefficients for Use in Radiation Protection, ORNL/TM-2015/597. Sponsor Controlled Distribution. Sept. 2015
  5. R. Gaudet, S. Dewji, S. Poe, M. Carringer, Human Capital Roadmap in Safeguards and Nonproliferation Education, Training, and Knowledge Retention: Subject Matter Expert - Core Capabilities Database, ORNL/TM-2015/552. Sponsor Controlled Distribution. Sept. 2015
  6. S. Dewji, S. Poe, R. Gaudet, Human Capital Roadmap in Safeguards and Nonproliferation Education, Training and Knowledge Retention - FY14 Snapshot on Metrics Development, ORNL/TM-2015/222. Sponsor Controlled Distribution. May 2015
  7. S. Dewji, S. Poe, B. Kirk, R. Gaudet, Human Capital Roadmap in Safeguards and Nonproliferation Education, Training, and Knowledge Retention - Knowledge Management Strategic Plan, ORNL/TM-2014/673. Sponsor Controlled Distribution. Jan. 2015
  8. S. Dewji, S. Poe, L. Finklea, Human Capital Roadmap in Safeguards and Nonproliferation Education, Training and Knowledge Retention - FY13 Snapshot on Metrics Development, ORNL/TM-2014/284. Sponsor Controlled Distribution. Oct. 2014
  9. D. Lee, J. Ladd-Lively, C. W. Chase, E. Rauch, J. Chapman, and S. Dewji, Uranyl Nitrate Calibration Loop Equipment (UNCLE) 2011 Annual Report, ORNL/TM-2011/354.Sept. 2011
  10. S. Dewji and N. Hertel, Simulation and Testing of Various Radiation Survey Meters as Monitors of Internal Contamination Levels: Harshaw Model 12S12 3x3 NaI(Tl) Scintillation Detector, Technical Report GT-TH-08-04, Rev. 0.0, Sept. 2008, 94 pp. (Prepared for the Radiation Studies Branch of the Centers for Disease Control and Prevention). Sept. 2008
  11. S. Dewji and N. Hertel, Simulation and Testing of Various Radiation Survey Meters as  Monitors of Internal Contamination Levels: Canberra Model 802-2x2 NaI(Tl) Scintillation Detector, Technical Report GT-TH-08-05, Rev. 0.0, Sept. 2008, 63 pp. (Prepared for the Radiation Studies Branch of the Centers for Disease Control and Prevention). Sept. 2008
  12. S. Dewji and N. Hertel, Simulation and Testing of Various Radiation Survey Meters as Monitors of Internal Contamination Levels: Ortec 905-1 1x1 NaI(Tl) Detector,Technical Report GT-TH-08-06, Rev. 0.0, Sept. 2008, 93 pp. (Prepared for the Radiation Studies Branch of the Centers for Disease Control and Prevention). Sept. 2008
 
 
 

Patents

 

 
 

Trademarks

 

 
 

Facilities Used

 

 
 

Specialized Equipment