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Postdoctoral Research Associate - Accelerator Physics

Date: Jan 20, 2023

Location: Oak Ridge, TN, US, 37830

Company: Oak Ridge National Laboratory

Requisition Id 9745 


Oak Ridge National Laboratory is the largest US Department of Energy science and energy laboratory, conducting basic and applied research to deliver transformative solutions to compelling problems in energy and security.


We are seeking a Postdoctoral Research Associate who will support the Accelerator Physics Group in the Research Accelerator Division (RAD), Neutron Sciences Directorate (NScD) at Oak Ridge National Laboratory (ORNL).  The qualified candidate will study beam transport and beam dynamics for high intensity beams, for the SNS superconducting linac and SNS Ring. The qualified candidate will also be expected to contribute to the development of simulation models to account for various mechanisms of beam loss and implement software to control the SNS accelerator in real time.


Major Duties/Responsibilities: 

  • Conduct beam studies on the SNS 1.4 MW beam to calibrate simulations and validate predictions
  • Research beam loss mechanisms in the SNS superconducting linac including Intra Beam Stripping
  • Develop simulation models of beam loss using pyORBIT code
  • Develop and operate Control Room software for SNS accelerator tuning and monitoring
  • Participate in scientific conferences, workshops, meetings and publishes results in the form of SNS technical notes and memos, workshop and conference proceedings, and scientific journals


Basic Qualifications:

  • A PhD in Physics or a related field completed within the last 5 years
  • Programming experience in Python, or other object-oriented language


Preferred Qualifications:

  • Experience with modern programming languages (C++/Java), version control system (Git) and software development practices including code design, documentation, testing etc.
  • Working knowledge of Linux command line
  • Experience working with an accelerator, such as experience working in a control room, conducting accelerator-based experiments, and performing accelerator simulations
  • Familiarity with EPICS - accelerator control software
  • Experience with pyORBIT or other Particle-In-Cell codes
  • Demonstrated ability to communicate research results through reports, publications, and presentations.


For questions about this position, please contact Dr. Alexander Zhukov at                                


Please submit three letters of reference when applying to this position. You can upload these directly to your application or have them sent to with the position title and number referenced in the subject line.


Instructions to upload documents to your candidate profile:

  • Login to your account via
  • View Profile
  • Under the My Documents section, select Add a Document


Applicants cannot have received their Ph.D. more than five years prior to the date of application and must complete all degree requirements before starting their appointment. The appointment length will be for up to 24 months with the potential for extension, or conversion to permanent staff. Initial appointments and extensions are subject to performance and the availability of funding.


Moving can be overwhelming and expensive. 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.

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




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

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