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Decay Spectroscopy at FRIB - Postdoctoral Researcher

Entry Level | Full-time
Postdoctoral/Fellowship | livermore, CA | 03/15/2023

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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 essential to innovation and creativity for continued success of the Laboratory’s mission.


$108,840 Annually

Job Description

We have an opening in the Nuclear Physics and Accelerator Technologies Group for a Postdoctoral Researcher to play a major role in developing and conducting experiments to improve the beta-decay data for neutron-rich isotopes important to astrophysics and nuclear structure studies. This research takes advantage of the radioactive beams available at facilities such as FRIB at Michigan State University. The responsibilities include setting up and participating in experiments, performing data analysis, and interpreting and publishing the results. You will also have opportunities to participate in the overall beta-decay program of the group. You will maintain a close collaboration with the nuclear astrophysics, nuclear theory and data evaluation community.

In this role you will

  • Conduct beta-decay experiments at accelerator-based facilities.
  • Perform data analysis and interpret the results of experiments.
  • Lead development of detector systems needed for beta-decay studies.
  • Develop and perform simulations of particle transport and detector performance.
  • Validate simulations using calibration sources and experimental results.
  • Publish research results in peer-reviewed scientific or technical journals and present results at external conferences, seminars, and/or technical meetings.  
  • Work in close collaboration with colleagues at LLNL and the broader nuclear science community to perform measurements on radioactive nuclei.
  • Provide technical contributions to the development of future nuclear physics experiments.


  •  PhD in Nuclear Physics, Nuclear Astrophysics, Nuclear Engineering, Nuclear Chemistry or related field.
  • Advanced knowledge with accelerator-based experiments and nuclear decay spectroscopy.
  •  Experience performing decay spectroscopy with charged-particle detectors, gamma-ray detectors, or neutron detectors.
  • Programming experience in C++/Python and/or other programming languages.
  • Demonstrated experience performing data analysis and simulations with ROOT, GEANT4, or similar programs.
  • Documented publication record in peer-reviewed literature in physics or a related field.
  • Experience working collaboratively as part of a focused team.
  • Proficient verbal and written communication skills to collaborate effectively in a multi-disciplinary team environment and present and explain technical information.

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.

Equal Employment Opportunity

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.

Reasonable Accommodation

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. 

California Privacy Notice

The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants, employees, and non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

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