Radiation Dosimetry Scientist

Date: Sep 20, 2023

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 11466 


ORNL is a U.S. Department of Energy (DOE) Office of Science national laboratory, with an extraordinary 80-year history of solving the nation’s biggest problems. We have a dedicated and creative staff of over 6,200 people! ORNL’s decadal vision for diversity, equity, inclusion, and accessibility (DEIA) is to cultivate an environment and practices that foster diversity in ideas and in the people across the organization, as well as to ensure ORNL is recognized as a workplace of choice. These elements are critical for enabling the execution of ORNL’s broader mission to accelerate scientific discoveries and their translation into energy, environment, and security solutions for the nation. Come join us and help solve the world's most challenging energy problems!



The Biodiversity and Sustainability section within the Environmental Sciences Division, http://www.esd.ornl.gov, at Oak Ridge National Laboratory (ORNL), http://www.ornl.gov, is seeking a early to mid-career scientist position in radiation dosimetry. We seek a colleague with research interests in exploring radiation effects on humans using advanced simulation and computational approaches for radiation dose modeling and assessments. We are especially interested in qualified candidates who bring unique skills to the Center for Radiation Protection Knowledge’s (https://www.ornl.gov/crpk) existing expertise and, in addition to contributing greatly to ongoing programs, can develop new research programs in radiation dosimetry.

ESD is an interdisciplinary research and development organization with over 60 years of achievement in local, regional, national, and international environmental research. Our vision is to expand scientific knowledge and develop innovative strategies and technologies that will strengthen the nation’s leadership in creating solutions to help sustain the Earth’s natural resources. Our scientists conduct research, develop technology, and perform analyses to understand and assess responses of environmental systems at the environment-human interface and the consequences of alternative energy and environmental strategies.


Major Duties/Responsibilities:

You will have responsibility for collaboratively leading research in these areas:

  • Computational dosimetry using traditional and new-age anthropomorphic phantoms
  • Biokinetic modeling of essential substances and xenobiotics in the human body
  • Compilation and evaluation of radionuclide decay data and the construction of environmental source terms and ose reconstruction and radiological assessment based on bioassay or environmental source terms
  • Radiation dosimetry using spectral and dose measuring instruments


You will provide expertise and leadership in advancing radiation protection initiatives with DOE and other Federal agencies as well as national and international organizations including:

  • Interagency Steering Committee on Radiation Standards (ISCORS)
  • International Commission on Radiological Protection (ICRP)
  • National Council on Radiation Protection and Measurements (NCRP)
  • International Atomic Energy Agency (IAEA)


Basic Qualifications:

  • 2 years post-PhD experience
  • PhD in radiation biology, health physics, nuclear engineering, computational biology or related field
  • Experience with internal and external radiation dosimetry modeling for dose assessments of age specific males and females, fetus thru older adults
  • Experience in occupational and environmental radiological assessments and dose reconstruction based on bioassay or source terms
  • Experience in radiation protection guideline development
  • Proven ability in the design and execution of complex and computationally intense radiation dosimetry problems
  • Demonstrated ability to work independently and collaboratively as part of a multidisciplinary team
  • Strong record of productive and creative research demonstrated by publication in peer-reviewed journals, presentations at scientific conferences, and appointments on Federal or International radiation protection standards committees
  • Excellent interpersonal, oral, and written communication skills


At a minimum, we request that applicants include an updated CV and list of references when completing your application.


For more information about our benefits, working here, and living here, visit the “About” tab at jobs.ornl.gov.



  • UT-Battelle offers a quality benefits package, including a matching 401(k), contributory pension plan, paid vacation, and medical/dental plan options. Onsite amenities include a credit union, medical clinic, cafeteria, coffee stands, and fitness facilities.



UT-Battelle offers a generous relocation package to ease the transition process. Domestic and international relocation assistance is available for certain positions. If invited to interview, be sure to ask your Recruiter (Talent Acquisition Partner) for details.


This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.

We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.

If you have trouble applying for a position, please email ORNLRecruiting@ornl.gov.

ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.  UT-Battelle is an E-Verify employer.

Nearest Major Market: Knoxville