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Argonne National Laboratory Assistant Physicist in Lemont, Illinois

Assistant Physicist

Requisition Number: 407022 Location: Lemont, IL

Functional Area: Research and Development Division: XSD-X-Ray Science Division

Employment Category: Regular Shift: 8:30 - 5:00

Level (Grade): RD2 Share: Facebook LinkedIn Twitter

The Detectors group in the X-ray Science Division (XSD) of Argonne National Laboratory’s Advanced Photon Source (APS) develops and delivers cutting-edge detectors to APS beamlines. We accelerate and facilitate early access to new commercial detectors via the APS Detector Pool. In addition, we are engaged in a number of detector R&D projects, most prominently transition-edge sensormicrocalorimeters andASIC-based hybrid pixel array detectors. We invite applications for a detector physicist staff member who will play a key role to support, optimize, and maximize the impact of detectors at APS beamlines. A substantial portion of this position will involve working at various beamlines in collaboration with XSD beamline scientists and engineers to support commercial detectors for successful user experiments. In addition, the candidate will work closely with members of the Detectors group to support internal detector R&D projects as they are deployed and optimized at APS beamlines.

The successful candidate will lead the APS Detector Pool and contribute to detector R&D projects. The former includes providing technical support, expertise, and advisory services on detectors such as conceiving, planning, and implementing detector characterization and testing protocols. It also includes developing advanced data processing and analysis methods to maximize the utility of commercial and in-house detectors. Finally, the candidate will work closely with beamline scientists and external user groups to develop new X-ray techniques enabled by new detectors. Results will be reported in appropriate forms: publications in refereed journals and oral presentations at meetings, conferences, and seminars.

Knowledge, Skills and Experience:


  • Strong Linux skills (especially networking and make build systems).
  • Strong data analysis skills.
  • Experience withmodern software tools(Python, C++, Matlab, Qt, git, etc).
  • Experience with superconducting and/or semiconducting physics detector/sensor measurements.
  • Excellent understanding of detector physics, including the interactions between the electronics and physical instruments.
  • Good general knowledge of experimental physics and mathematical methods for physics applications.
  • Demonstrated experience working successfully as part of a team in a collaborative and multidisciplinary scientific environment.
  • Ability to communicate effectively with internal and external collaborators and ability to work in team environment.


  • Experience with advanced analytic methods(e.g., AI/machinelearning).
  • Experience with control system software development (EPICS and/or LabView).
  • Experience with modern software methodologies (e.g., continuous integration) and tools (e.g., Jenkins, TeamCity, Travis CI).
  • Experience with X-ray light source beamline techniques (e.g., X-ray scattering, spectroscopy, microscopy, etc).
  • Experience with high-speed data acquisition systems using FPGAs, especially for detectors.
  • Experience with high speed A/D, D/A and communication interfaces.
  • Experience testing low-temperature devices and the operation of cryogenic refrigerators.


  • This level of scientific knowledge and sophistication required is normally associated with a Ph.D. in physics, particle physics, astrophysics, electrical engineering, or related disciplines.
  • Must have a Bachelor’s Degree and 5+ years of experience; Master’s and 3+ years; Doctorate, or equivalent.

As an equal employment opportunity and affirmative action employer, and in accordance with our core values of impact, safety, respect, integrity and teamwork, Argonne National Laboratory is committed to a diverse and inclusive workplace that fosters collaborative scientific discovery and innovation. In support of this commitment, Argonne encourages minorities, women, veterans and individuals with disabilities to apply for employment. Argonne considers all qualified applicants for employment without regard to age, ancestry, citizenship status, color, disability, gender, gender identity, genetic information, marital status, national origin, pregnancy, race, religion, sexual orientation, veteran status or any other characteristic protected by law.

Argonne employees, and certain guest researchers and contractors, are subject to particular restrictions related to participation in Foreign Government Talent Recruitment Programs, as defined and detailed in United States Department of Energy Order 486.1. You will be asked to disclose any such participation in the application phase for review by Argonne’s Legal Department.