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Experimental Nuclear Science - Postdoctoral Researcher

Entry Level | Full-time
Postdoctoral/Fellowship | livermore, CA | 09/13/2023

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Company Description

Join us and make YOUR mark on the World!

Are you interested in joining some of the brightest talent in the world to strengthen the United States’ security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place.

We are committed to a diverse and equitable workforce with an inclusive culture that values and celebrates the diversity of our people, talents, ideas, experiences, and perspectives. This is important for continued success of the Laboratory’s mission.

Pay Range

$108,840 Annually

Job Description

We have an opening for an Experimental Nuclear Science Postdoctoral Researcher to play a leading role in charged-particle/gamma-ray coincidence experiments aimed at obtaining indirect neutron-capture constraints for isotopes crucial to our understanding of the formation of the solar system. For these efforts, you will use the newly available tritium beams at Florida State University’s John D. Fox Accelerator Laboratory coupled with charged-particle and gamma-ray detection. Your responsibilities include setting up and executing the (t,p) experiments, simulating the detector arrays, analyzing the resulting experimental data, and interpreting and publishing the neutron-capture reaction constraints in collaboration with nuclear theorists and astrophysicists. This position is in the Nuclear Physics and Accelerator Technologies Group of the Nuclear and Chemicals Sciences (NACS) Division.

You will 

  • Conduct charged-particle/gamma-ray coincidence experiments at accelerator-based facilities.
  • Develop data-analysis tools and techniques to interpret the experimental results.
  • Perform simulations of the experimental setup to evaluate the detector response and efficiency.
  • Work with nuclear theorists and astrophysicists to interpret analyzed experimental results.
  • Publish research results in peer-reviewed scientific or technical journals and present results at external conferences, seminars, and/or technical meetings.
  • Collaborate with scientists and engineers at LLNL, Florida State University, and other laboratories.
  • Provide technical contributions to the development of future nuclear-physics experiments.
  • Perform other duties as assigned.


  • Ph.D. in nuclear physics, nuclear astrophysics, or related field.
  • Experience with accelerator-based experiments and radiation counting using charged-particle and gamma-ray detectors.
  • Experience working with indirect neutron-capture techniques, charged-particle reactions, or similar experiments and analysis.
  • Programming experience in C++ and/or other programming languages.
  • Experience performing analysis using ROOT or comparable analysis framework.
  • Experience performing simulations with GEANT4.
  • Documented publication record in peer-reviewed literature in physics or a related field.
  • Interpersonal skills necessary to interact with a diverse set of scientists, engineers, and other technical and administrative staff.

Additional Information

All your information will be kept confidential according to EEO guidelines.

Position Information

This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date.

Why Lawrence Livermore National Laboratory?

Security Clearance

None required.  However, if your assignment is longer than 179 days cumulatively within a calendar year, you must go through the Personal Identity Verification process.  This process includes completing an online background investigation form and receiving approval of the background check.  (This process does not apply to foreign nationals.) 

Pre-Employment Drug Test

External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana as Federal Law applies to us as a Federal Contractor.

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We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, marital status, national origin, ancestry, sex, sexual orientation, gender identity, disability, medical condition, pregnancy, protected veteran status, age, citizenship, or any other characteristic protected by applicable laws.

We invite you to review the Equal Employment Opportunity posters which include EEO is the Law and Pay Transparency Nondiscrimination Provision.

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Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory.  If you need a reasonable accommodation during the application or the recruiting process, please use our online form to submit a request. 

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