Oak Ridge, USA
The Nuclear Security and Isotope Technology Division invites applications for a postdoctoral research position to aid in the development of the capability to perform energy resonance neutron tomography to study elemental and isotopic distributions within nuclear materials, such as advanced nuclear fuels. Specifically, energy resonance computed tomography proof-of-concept research will be undertaken to investigate the carbon distribution within TRISO microspheres and its dependence on processing parameters. Measurements will be performed at the Spallation Neutrons and Pressure Diffractometer (SNAP) beamline at the Spallation Neutron Source (SNS). Additionally, the ability to map uranium isotopes at SNAP and the upcoming VENUS beamline will be explored through interrogation of kernels of uranium with varied enrichment levels. The effort will include close collaboration with advanced fuel experts and a nuclear material chamber development team. The successful candidate will join an interdisciplinary research team with expertise in neutron scattering, neutron tomography, uranium chemistry, advanced nuclear fuels, and inorganic materials characterization.
This position resides within the Nuclear Materials Processing Group in the Nuclear Security and Isotope Technology Division (NSITD), Nuclear Science and Engineering Directorate (NSED) at Oak Ridge National Laboratory. The position will involve significant collaboration with the Neutron Sciences Directorate (NScD) at Oak Ridge National Laboratory (ORNL). NScD operates the High Flux Isotope Reactor (HFIR), the United States’ highest flux reactor based neutron source, and the SNS, the world’s most intense pulsed accelerator based neutron source. Together these facilities operate30 instruments for neutron scattering research, each year carrying out in excess of 1,000 experiments in the physical, chemical, materials, biological and medical sciences for more than 3,000 visiting scientists. To learn more about Neutron Sciences at ORNL go to: http://neutrons.ornl.gov.
The Chemical and Engineering Materials Division (CEMD) of the NScD at Oak Ridge National Laboratory is seeking a highly motivated Instrument Scientist on the BASIS spectrometer at the SNS.
As an Instrument Scientist within Neutron Sciences, you will report to the Spectroscopy Group Leader in CEMD, and will participate in user support, instrument development, and research activities on BASIS. Duties will include user assistance as a local contact helping with experimental setup, data acquisition, and data analysis. You will champion developments in instrumentation and sample environment to help maintain and further develop the performance of BASIS and its neutron science programs. In this role you will also be expected to develop a high-quality personal research program that is well aligned with the NScD mission. You will also be expected to publish research results in scientific journals and maintain a strong commitment to the implementation and perpetuation of values and ethics. You will be expected to ensure compliance with environmental, safety, health and quality program requirements.
Work Directions and Interfaces:
This position will report to the Spectroscopy Group Leader in CEMD. Works closely with research staff in CEMD.
Collaborates with science programs elsewhere at ORNL.
Candidates with a PhD and 2 or more years of relevant post doctoral or equivalent experience in Physics, Chemistry, Biology, or related fields will be considered. Extensive expertise in quasielastic neutron scattering is required. Strong written and oral communication skills are required. Applicants must demonstrate an ability to work in a team environment on scientifically challenging problems.
A strong record of relevant publications.
Experience with quasielastic neutron scattering technique using both backscattering and chopper neutron spectrometers.
Go to https://www.ornl.gov/careers .
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.
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If you have trouble applying for a position, please email ORNLR@ornl.gov.