[Neutron] ONRL / Neutron Sciences Job Posting: Neutron Imaging Scientist / NB50690044

[Johnson, Nicia R.]

Job Posting Title
Neutron Imaging Scientist / NB50690044

Posted Date
09/21/2018

End Posting Date
10/16/2018

Purpose
The Neutron Sciences Directorate (NScD) at Oak Ridge National Laboratory (ORNL) operates the High Flux Isotope Reactor
(HFIR), the United States' highest flux reactor based neutron source, and the Spallation Neutron Source (SNS), the world's
most intense pulsed accelerator based neutron source. Together these facilities operate 30 instruments for neutron scattering
research, each year carrying out in excess of 1,000 experiments in the physical, chemical, materials, biological and medical
sciences. HFIR also provides unique facilities for isotope production and neutron irradiation. To learn more about Neutron
Sciences at ORNL go to: http://neutrons.ornl.gov

Overview
The Neutron Scattering Division (NSD) of the Neutron Scattering Science Directorate (NScD) at Oak Ridge National
Laboratory is seeking motivated candidates for an instrument scientist position in neutron imaging. With the advent of
instruments such as the HFIR CG-1D cold neutron imaging beamline, it has now become possible to obtain high-spatial
resolution 2 and 3-dimensional neutron imaging data of a series of advanced materials. Information about the CG-1D facility
can be found at: http://neutrons.ornl.gov/imaging/

In this role, you will join an interdisciplinary research team with expertise in neutron instrumentation, energy materials,
engineering materials, and materials chemistry, etc. You will participate in research activities and user support using HFIR
CG-1D beamline and will participate in TOF neutron imaging experiments at Spallation Neutron Source instruments VULCAN
and SNAP. You will have the opportunity to contribute to the development, construction, and commissioning of the planned
Spallation Neutron Source (SNS) VENUS imaging beamline. Information about VENUS can be found at:
http://neutrons.ornl.gov/venus/

Major Duties/Responsibilities
You will report to the Materials Engineering Group Leader in NSD and will participate in research activities using CG-1D,
primarily for, but not limited to, neutron radiography and computed tomography for energy materials, advanced materials
such as additive manufacturing, engineering applications, biology and georgical research. You will also contribute to the
development of time-of-flight imaging capabilities at the Spallation Neutron Source.

* Conduct safe operation and user support for the CG-1D imaging beamline at the HFIR and for time-of-flight (TOF) imaging
activities using the SNAP beamline at the SNS.
* User support as a local contact, assistance with experimental setup, data acquisition, data analysis and publications.
* Work within the neutron imaging team (Instrument Scientist, Scientific Associates, Engineers, Software Developers) and
with scientists and other ORNL staff members to develop a strong materials science program using neutron imaging.
* You will be expected to take a lead role in imaging sample environment design and testing, for example, of a
temperature-controlled furnace optimized for imaging, and work directly with the user community to grow a novel research
area such as the use of time-of-flight neutrons for advanced materials, etc.
* Develop a high-quality in-house research program using imaging, publish research results in scientific journals
* Support programs and facilities at HFIR and SNS that are operational 24 hours a day and seven days a week.
* This position will require flexibility in work schedule, and support will be needed during off duty hours and weekends, in
many cases, to assist with user experiments.
* Ensure compliance with environment, safety, health and quality program requirements
* You will be expected to commit to ORNL's Research Code of Conduct by holding yourself and others to the highest
scientific, professional, and ethical standards in a manner that fosters mutual respect and enhances the reputation of the
individual researcher, his/her colleagues, and the Oak Ridge National Laboratory in its mission to address the Department of
Energy's and the nation's scientific and technical challenges.

Qualifications Required
Basic Qualifications:
* Candidates within 3 years of their Ph.D. in Physics, Metallurgical Engineering, Materials Science and Engineering or similar
background will be considered
* Experience in neutron or x-ray imaging and computer analysis/programming/modeling using Python
* Strong written and oral communication skills and the desire to work in a team environment on scientifically challenging
problems
* Experience in neutron or x-ray technique development

Preferred Qualifications:
* Previous beamline support of a neutron imaging beamline at a user facility
* Experience in both polychromatic and wavelength-dependent neutron imaging
* Expertise in energy materials such as nuclear materials, energy storage, fossil fuel and renewal energy technologies
* Neutron simulations using Monte Carlo based software (McStas and/or MCNP-X)
* Experience in software reconstruction, 2D and 3D image visualization and quantitative data analysis

Work Directions and Interfaces
You will work with research staff in NSD and programmers in the Neutron Data Analysis and Visualization group and other
support groups. Collaboration is expected with science programs across other directorates within ORNL and with external
user groups.

Contact Dr. Hassina Z. Bilheux at bilheuxhn at ornl.gov for questions about this position. Please reference the position title
and number in the correspondence.
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