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Radiation Physicist - 101593

Job Details

Division: AL-Advanced Light Source

The Lawrence Berkeley National Lab’s (LBNL, Advanced Light Source Division (ALS, Division has an opening for a Radiation Physicist. This pivotal role involves conducting thorough radiological risk assessments and crafting protective measures to mitigate radiation exposure, alongside overseeing radiation safety protocols and collaborating closely with engineers on shielding design. This role will allow you to make a significant impact at the forefront of soft x-ray science. Joining our team means being part of a dynamic environment where you will have the chance to work with cutting-edge technology and contribute to groundbreaking research.

The Advanced Light Source is a U.S. Department of Energy (DOE) Office of Science national scientific user facility whose excellent scientific reputation, expert staff, and capabilities in the soft x-ray, hard x-ray, and infrared regimes attract over 1,600 academic and industrial users each year in disciplines spanning physical, chemical, materials, biological, energy, and Earth sciences. It is one of five Berkeley Lab user facilities that serve a combined 11,000 users annually. The co-location of these user facilities – including the Molecular Foundry Nanoscale Science Research Center and the NERSC scientific computing center, as well as Berkeley Lab’s outstanding programs in materials and chemical sciences, among others – offers a prime environment for collaborative science. The ALS has been a global leader in soft x-ray science for more than two decades and is currently undergoing a large-scale upgrade (ALS-U) that will endow the facility with state-of-the-art x-ray capabilities. It’s an exciting time to join our growing team!

This position will be filled at Level 3 or 4 depending on the skills, knowledge, and experience of the candidate.

Level 3 Responsibilities include:

  • Conduct, with minimal supervision, radiological risk assessment and design of protective measures to minimize radiation exposure to people and the environment;
  • Execute radiation calculations and specify requirements for shielding of accelerators and beamlines;
  • Organize and perform radiation measurement campaigns ;
  • Manage and provide oversight of operational radiation safety aspects;
  • Work jointly with accelerator and beamline engineers in the design of equipment and shielding to minimize radiation damage;
  • eeParticipate in research and development activities in radiation physics in support of the ALS & LBL mission and publish results.

Level 4 Responsibilities Include:

  • Develop and direct activities within the ALS Radiation Safety program;
  • Contribute to the design and development of all ALS Radiation Safety Systems, including radiation monitoring and personnel protection systems;
  • Participate in reviews of incidents involving radiation-associated events, components, and procedures;
  • Take a leading role in radiation-safety policy making at the ALS and in working groups across peer labs;
  • Propose and lead research activities in the field of Radiation Physics;
  • Participate in ALS Division and Lab-wide committees and working groups.

What is Required:

  • For Level 3 Master in Health/Radiation Physics or Nuclear Engineering or the equivalent work experience and 3 years of experience;
  • For Level 4 PhD in Health/Radiation Physics or Nuclear Engineering or the equivalent work experience and 5 years of experience, including demonstrated experience with shielding design, or the equivalent combination of education and work experience;
  • Demonstrated experience with Monte Carlo radiation generation and transport codes (e.g. FLUKA, MCNP, PHITS);
  • In-depth knowledge of radiological hazard analysis and shielding design methods ;
  • Knowledge of applicable radiation protection regulations and requirements;
  • Knowledge of theory and operation of radiation detectors;
  • Demonstrated ability to work independently and within collaborations;
  • Proven excellent organization and multi-tasking skills, and ability to work in a fast-paced environment Experience in dealing with technical, operational, scientific and administrative staff, preferably at a national laboratory and with people from diverse backgrounds;
  • Demonstrated excellent initiative and ability to plan, anticipate, and identify needs, assess and resolve complex problems, and develop and coordinate plans to accomplish objectives;
  • Advanced verbal and written communication skills. 

Desired Qualifications:

  • Demonstrated experience at a particle-accelerator lab;
  • Experience at a DOE national lab.

Requested Application Materials:

  • Curriculum Vitae ;
  • Cover letter (2-page maximum).

This position will remain open until filled.

Want to learn more about Berkeley Lab’s Culture, Benefits and answers to FAQs? Please visit:


  • This is a full-time, career appointment, exempt (monthly paid) from overtime pay;
  • This position will be hired at a level commensurate with the business needs and the skills, knowledge, and abilities of the successful candidate;
  • This position may be subject to a background check. Any convictions will be evaluated to determine if they directly relate to the responsibilities and requirements of the position. Having a conviction history will not automatically disqualify an applicant from being considered for employment;
  • Work will be primarily performed at Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA;
  • The level 3 position is expected to pay $114,252.00.00 - $142,812.00/year, which fits within the full salary range of $114,252.00.00 - $192,804 for the Radiation Protection Spec 3. H10.3;
  • The level 4 position is expected to pay $134,496.00 - $168,132/year, which fits within the full salary range of $134,496.00 - $226,944 for the Radiation Protection Spec 4, H10.4;
  • Salary for this position will be commensurate with the final candidate’s qualifications and experience, including skills, knowledge, relevant education, and certifications, plus also aligned with the internal peer group.

How To Apply

Apply directly online at and follow the on-line instructions to complete the application process.

The core values of the ALS reflect a strong commitment to diversity, equity, and inclusion. We seek candidates who will support a culture in which each member of the community feels welcomed and valued. An ongoing commitment to recruiting and retaining a vibrant, diverse, and talented workforce is paramount to promoting a strong and successful lab community. For more information refer to the LBNL core values (,openness%2C%20reliability%2C%20and%20accountability.) and the ALS mission statement and core values (

Berkeley Lab is committed to Inclusion, Diversity, Equity and Accountability (IDEA, and strives to continue building community with these shared values and commitments. Berkeley Lab is an Equal Opportunity and Affirmative Action Employer. We heartily welcome applications from women, minorities, veterans, and all who would contribute to the Lab’s mission of leading scientific discovery, inclusion, and professionalism. In support of our diverse global community, all qualified applicants will be considered for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, or protected veteran status. 

Equal Opportunity and IDEA Information Links:

Know your rights, click here ( for the supplement: Equal Employment Opportunity is the Law and the Pay Transparency Nondiscrimination Provision ( under 41 CFR 60-1.4.


From the infinite scale of the universe to the infinitesimal scale of subatomic particles, researchers at Lawrence Berkeley National Laboratory – Berkeley Lab – are advancing the scope of human knowledge and seeking science solutions to some of the greatest problems facing humankind

Company info
One Cyclotron Road
MS 937-0600

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