ALS Radiation Physicist

  • Full Time
  • Permanent
  • Scientist
  • Anywhere

Website advlightsource Advanced Light Source (ALS)

Berkeley Lab’s Advanced Light Source Division has an opening for a ALS Radiation Physicist.

The ALS is a U.S. Department of Energy 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 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 undertaking a new project (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!

The core values of the Advanced Light Source (ALS) reflect a strong commitment to diversity, equity, and inclusion. We seek candidates who will support a culture in which the entire ALS community feels welcomed and valued. An ongoing commitment to recruiting a vibrant, diverse and talented workforce is paramount to promoting a diverse lab community.

What You Will Do:

As a Radiation Physicist at the Advanced Light Source, this position will be commissioned with high impact assignments requiring significant experience with radiation physics at particle accelerators, with the expectation of rapid turnaround. The primary roles and responsibilities of this position involve shielding design, radiological calculations, beamline and accelerator review, and operational procedures for the ALS and for its planned upgrade (ALS-U). This position reports to the head ALS Radiation Physicist. Additionally, in collaboration with the LBNL Radiation Protection Group, the Radiation Physicist may be called on to provide adept technical and operational support to the LBNL radiation safety programs.

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

The Level 3 Responsibilities:

  • 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 for both upgrades to existing facilities and for the design of new components for new facilities;
  • Specify requirements for shielding of accelerators and beamlines;
  • Review and approve modifications to shielding of accelerators and beamlines;
  • Contribute to the design of the ALS Radiation Safety Systems;
  • Support the development of the accelerator and beamline design, supervising the development of synchrotron and Bremsstrahlung ray trace drawings for new/altered beamlines and accelerators;
  • Contribute to the design and maintenance of the radiation monitoring program at the ALS;
  • Improve safety of accelerator operations by monitoring and interpreting data from radiation monitors, dosimetry, and beamline and accelerator surveys;
  • Collaborate in research and development activities in health/radiation physics in support of the ALS & LBL mission and publish results;
  • Take part in the Integrated Safety Management (ISM) analysis of experiments conducted by ALS staff and Users;
  • Work jointly with accelerator engineers in the design of equipment and shielding to minimize radiation damage;
  • Contribute to ALS Review Committees (Accelerator Review Committee, Beamline Review Committee, Technical Review Committee, ALARA Subcommittee, ALS Radiation Review Committee);
  • Participate in reviews of incidents involving radiation-associated events, components, and procedures.

The Level 4 Responsibilities:

  • Develop and direct activities within the ALS Radiation Safety program;
  • Manage and provide oversight of all 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:

  • Reviews ALS Procedures;
  • ALS Training Programs;
  • 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 Physics, Health Physics, Nuclear Engineering or related fields or the equivalent work experience
  • 3-5 years (or 5-7 years for Level 4) of experience working in an accelerator environment, including demonstrated experience with shielding design, activation calculations, and radiation safety systems.
  • Demonstrated in-depth experience dealing with Monte Carlo radiation generation and transport codes (FLUKA, MARS15, MCNP, PHITS, etc.).
  • Experience in dealing with technical, operational, scientific and administrative staff, preferably at a national laboratory.
  • Strong experience with the theory and operation of radiation monitoring equipment.
  • Experience working with scientific staff, technical staff, and with people from diverse geographic backgrounds
  • Demonstrated ability to develop and maintain effective relationships with all constituents including senior internal and external stakeholders and customers.
  • Proven excellent organization and multi-tasking skills, and ability to work in a fast-paced environment to independently establish priorities and perform multiple projects simultaneously.
  • Demonstrated ability to work independently.
  • Demonstrated excellent initiative and ability to plan, anticipate and identify needs, assess and resolve complex problems, develop and coordinate plans to accomplish objectives.
  • Proven problem-solving skills and analytical ability to recommend and implement solutions to complex problems.
  • 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.
  • Flexibility to perform other duties as assigned/needed.

Additional Desired Qualifications:

  • Knowledge of applicable radiation protection regulations and requirements.

The posting shall remain open until the position is filled.


  • This is a full-time career appointment.
  • Classification will depend upon the applicant’s level of skills, knowledge, and abilities.
  • Full-time, M-F, exempt (monthly paid) from overtime pay.
  • Salary is commensurate with experience.
  • 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.
  • Diversity, equity, and inclusion are core values at Berkeley Lab. Our excellence can only be fully realized by faculty, students, and staff who share our commitment to these values. Successful candidates for our faculty positions will demonstrate evidence of a commitment to advancing equity and inclusion.
  • Work will be primarily performed at: Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA.

Learn About Us:

Working at Berkeley Lab has many rewards including a competitive compensation program, excellent health and welfare programs, a retirement program that is second to none, and outstanding development opportunities. To view information about the many rewards that are offered at Berkeley Lab- Click Here.

Berkeley Lab (LBNL) addresses the world’s most urgent scientific challenges by advancing sustainable energy, protecting human health, creating new materials, and revealing the origin and fate of the universe. Founded in 1931, Berkeley Lab’s scientific expertise has been recognized with 13 Nobel prizes. The University of California manages Berkeley Lab for the U.S. Department of Energy’s Office of Science.

Equal Employment Opportunity: Berkeley Lab is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, age, or protected veteran status. Berkeley Lab is in compliance with the Pay Transparency Nondiscrimination Provision under 41 CFR 60-1.4. Click here to view the poster and supplement: “Equal Employment Opportunity is the Law.”

Lawrence Berkeley National Laboratory encourages applications from women, minorities, veterans, and other underrepresented groups presently considering scientific research careers.

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