Soft X-ray Reflection Microscopy Postdoctoral Fellow

University of California

Job Description

The Advanced Light Source Division at Lawrence Berkeley National Laboratory (Berkeley Lab) is seeking a Soft X-ray Reflection Microscopy Postdoctoral Fellow. The objective of this postdoctoral position is to develop reflection microscopy of condensed matter materials using soft x-rays. You will be responsible for the development, implementation and testing of the technique with the goal of implementing a newly developed full-frame method called randomized probe imaging (RPI) in reflection.

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 nearly 1,700 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 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!

What You Will Do:

  • Develop the instrumentation and data analysis for a reflection soft x-ray microscopy technique. 

  • Perform soft X-ray microscopy experiments (holography and/or ptychographic-based) at BLs, 12.0.2 and/or 7.0.1

  • Perform image analysis in Python or similar by writing codes or using established software. 

  • Collaborate well with other research teams and scientists.

  • Publish work in peer-reviewed scientific literature.

  • Present work at national meetings and at regular group meetings.

  • Contribute positively to the active research culture.

  • Work in a safe and healthy manner consistent with EH&S guidelines.

  • Respect diversity and strive for inclusivity in interactions with others.

What is Required:

  • PhD in Physics, Chemistry, Materials Science, or equivalent.

  • Sound knowledge and keen interest in x-ray scattering, diffraction, or microscopy. 

  • Ability to safely perform independent hands-on work in an experimental endstation. 

  • Proficiency in programming for handling complex datasets, e.g. Python

  • Proven track record in disseminating research at conferences and in publications

Desired Qualifications:

  • Experience in ptychography or coherence techniques. 

  • Experience in condensed matter material systems (e.g. magnetic, ferroelectric, etc.)

  • Knowledge of x-ray resonant scattering and/or diffraction methods. 

  • Working knowledge of high vacuum practices. 

Want to learn more about Berkeley Lab's Culture, Benefits and answers to FAQs? Please visit: https://recruiting.lbl.gov/

For full consideration, please apply by October 3rd, 2023. This position will remain open until filled.


  • This is a full-time, 2 year, postdoctoral appointment with the possibility of renewal based upon satisfactory job performance, continuing availability of funds and ongoing operational needs. You must have less than 3 years of paid postdoctoral experience. Salary for Postdoctoral positions depends on years of experience post-degree.

  • This position is represented by a union for collective bargaining purposes.

  • The monthly salary range for this position is $6,936.00 - $7,747.00. Postdoctoral positions are paid on a step schedule per union contract and salaries will be predetermined based on postdoctoral step rates. Each step represents one full year of completed post-Ph.D. postdoctoral and/or related research 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.

  • This position is eligible for a hybrid work schedule - a combination of teleworking and performing work on site at Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA. Work schedules are dependent on business needs. Individuals working a hybrid schedule must reside within 150 miles of Berkeley Lab.

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.

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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