Postdoctoral Researcher - Radiation Detection and Modeling

The Space Nuclear Sensing Group (ISR-8) is seeking a Postdoctoral Researcher to contribute to national security programs involving radiation detection and nuclear sensing.

• Conduct research in radiation detection with emphasis on data analysis and transport modeling.
• Analyze experimental radiation measurements.
• Develop radiation transport simulations.
• Compare detector data with simulated responses.
• Collaborate with engineering partners on detector development, radiation transport modeling, and mission systems analysis.

• Modeling detector response to x‑ray, gamma‑ray, and neutron sources in space.
• Developing analysis methods for identifying and characterizing radiation sources using detector measurements.
• Simulating and validating detector performance using transport codes (e.g., Geant4, MCNP).
• Cross‑comparing simulated and experimental measurements to improve detection algorithms and performance.

• Demonstrated ability to work collaboratively in multidisciplinary research teams.
• Experience with radiation transport simulation and modeling tools (e.g., Geant4, MCNP).
• Programming experience in C++, Python, or similar scientific computing languages.
• Demonstrated ability to communicate effectively, both written and orally.
• Strong technical documentation and record‑keeping practices.

Ph.D. in physics, nuclear engineering, or a closely related field completed within the past five years (no earlier than March 2021).

• Familiarity with the space radiation environment or space‑based radiation sensing.

Q (Required). Selected applicants will undergo a background investigation. Q clearance requires U.S. citizenship.

The work location is onsite, Los Alamos, NM.

Due to federal restrictions, certain citizens may be prohibited from accessing the facility.

Los Alamos National Laboratory (LANL) is a multidisciplinary research institution. Benefits include:

• PPO or high deductible medical insurance with a large nationwide network.
• Dental and vision insurance.
• Basic life and disability insurance.
• Paid childbirth and parental leave.
• 401(k) with 6% match plus 3.5% annually.
• Learning opportunities and tuition assistance.
• Flexible schedules and time off (PTO and holidays).
• Onsite gyms and wellness programs.
• Relocation packages (outside a 50 mile radius).

Los Alamos National Laboratory is an equal opportunity employer. All employment practices are based on qualification and merit, without regard to protected categories such as race, color, national origin, ancestry, religion, age, sex, gender identity, sexual orientation, marital status or spousal affiliation, physical or mental disability, medical conditions, pregnancy, status as a protected veteran, genetic information, or citizenship within the limits imposed by federal, state, and local laws and regulations.

The Laboratory is also committed to making our workplace accessible to individuals with disabilities and will provide reasonable accommodations, upon request, for individuals to participate in the application and hiring process. To request such an accommodation, please contact applyhelp or call .