ALS Radiation Physicist

Website advlightsource Advanced Light Source (ALS)

Lawrence Berkeley National Lab’s (LBNL) Advanced Light Source Division has an opening for an ALS Radiation Physicist to join the team.

In this exciting role, you will be commissioned with high impact assignments requiring significant experience with radiation physics at particle accelerators, with the expectation of rapid turnaround. The responsibilities of this position involve calculation of radiological quantities, shielding design, beamline and accelerator design review, and maintenance and development of operational safety procedures for the ALS and for its planned upgrade (ALS-U). This position reports to the ALS Lead Radiation Physicist and, additionally, the Radiation Physicist may be called on to provide adept technical support to the LBNL radiation safety programs.

The ALS 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 more than 2,000 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 14,000 users annually. 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 team!

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

What You Will Do

  • Conduct, with minimal supervision, radiological risk assessments and design of protective measures to minimize radiation exposure of people and of the environment
  • Execute radiation calculations and specify requirements for shielding of accelerators and beamlines for both ALS and ALS-U
  • Organize and perform radiation measurements campaigns to characterize the radiation environment and to improve the safety of accelerators and beamlines operations
  • Contribute to the design and development of all ALS Radiation Safety Systems, including radiation monitors and personnel protection systems
  • Work jointly with accelerator and beamline engineers in the design of equipment and shielding to minimize radiation damage
  • Collaborate in research and development activities in radiation physics in support of the ALS & LBL mission and publish results
  • Participate in reviews of incidents involving radiation-associated events, components, and procedures

Level 4 Responsibilities Include

  • Develop and direct activities within the ALS Radiation Safety program
  • Manage and provide oversight of operational radiation safety aspects
  • Be a strong presence in configuration control management
  • 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

Additional Responsibilities as needed

  • Review ALS Procedures
  • Contribute to the ALS Training Program
  • ALS Division committees and working groups as appropriate to your skills and Division needs
  • Lab-wide committees and working groups as appropriate to your skills and Lab needs

What is Required

  • PhD in Radiation Physics or Nuclear Engineering and for Level 3, 1 to 3 years of experience (3-5 years for Level 4) working in an accelerator environment, including demonstrated experience with shielding design, activation calculations, and radiation safety systems, or the equivalent combination of education and work experience
  • Demonstrated ability to develop and maintain effective relationships with all constituents including senior internal and external stakeholders and customers
  • Demonstrated excellent initiative and ability to plan, anticipate and identify needs, assess and resolve complex problems, develop and coordinate plans to accomplish objectives
  • Advanced verbal and written communication skills to clearly and effectively communicate with divisional leaders, managers, staff, and other stakeholders. Demonstrated skills to develop organization-level and other high-impact communications and presentations

Desired Qualifications

  • Demonstrated experience at a DOE national lab

Requested Application Material

  • 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 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 and the ALS mission statement and core values.

Based on University of California Policy – SARS-CoV-2 (COVID-19) Vaccination Program, Berkeley Lab requires that all members of our community obtain the COVID-19 vaccine as soon as they are eligible. As a condition of Physical Presence at a Berkeley Lab Location, all Covered Individuals must Participate in the COVID-19 Vaccination Program by providing proof that vaccination requirements have been met or submitting a request for Exception or Deferral.

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.

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