Researcher - Computational / Mechanical Sciences

SLAC National Accelerator Laboratory   •  

Menlo Park, CA

Industry: Professional, Scientific & Technical Services


5 - 7 years

Posted 65 days ago

This job is no longer available.


SLAC National Accelerator Laboratory’s Accelerator Research Division has a temporary employment opportunity for a Researcherwith a strong background in mechanical, material engineering and demonstrated research and development experience in the areas of thermal management, mechanical properties analysis, and X-ray diffraction modeling and numerical simulation. In this position will perform a range of scientific investigations and research work involving hard X-ray self-seeding (HXRSS) Free Electron Laser (FEL) as well as general topics within X-ray optics and X-ray devices design.

The X-ray-laser-crystal interaction as in HXRSS or X-ray-matter interaction in general is a typical multiscale multi-physics problem, which is currently not very well understood. The critical thermal, mechanical, and optical behaviors of the thin-film crystal in response to high repetition-rate high-intensity X-ray FEL pulses have to be thoroughly characterized; in particular for LCLS-II and LCLS-II-HE, where the thermal load is about two orders of magnitude higher than that of the current LCLS.

Your specific responsibilities include:

  • Conduct synergetic computational and experimental study to characterize the thermal-mechanical-optical dynamics in hard X-ray-crystal interaction in the HXRSS process.
  • Participate in the theoretical and numerical study, as well as experimental design for the above mentioned thermal-mechanical-optical effects research project.
  • Investigate the acoustic waves generated from thermal expansion and their propagation inside the thin crystal films.
  • Investigate the evolution of the thermal field and thermally-induced deformation of the thin crystal films as well as the effects from film alignment and curvature;
  • Conduct research and study on the effects of thermal deformation fields and the transient diffraction of an X-ray pulse.
  • Experimentally validate the numerical results and redesign HXRSS system to reduce the fluctuation of the FEL output.
  • Other duties may also be assigned.

Note: This is a non-benefits eligible casual-nonexempt position (work less than 50% full-time equivalent), not to exceed 980 hours in a calendar year.

To be successful in this position you will bring:

  • Ph.D. in Mechanical Engineering or related field.
  • 5+ years research in thermal management, heat transfer.
  • 5+ experience in teaching and mentoring Ph.D. students.
  • Demonstrated ability to manage and lead research projects.
  • Ability to carry out independent research.
  • Strong analytical and computational skills.
  • Effective verbal and written communication skills.
  • Ability to work independently and in a team environment.

SLAC employee competencies:

  • Effective Decisions: Uses job knowledge and solid judgment to make quality decisions in a timely manner.
  • Self-Development: Pursues a variety of venues and opportunities to continue learning and developing.
  • Dependability: Can be counted on to deliver results with a sense of personal responsibility for expected outcomes.
  • Initiative: Pursues work and interactions proactively with optimism, positive energy, and motivation to move things forward.
  • Adaptability: Flexes as needed when change occurs, maintains an open outlook while adjusting and accommodating changes.
  • Communication: Ensures effective information flow to various audiences and creates and delivers clear, appropriate written, spoken, presented messages.
  • Relationships: Builds relationships to foster trust, collaboration, and a positive climate to achieve common goals.

Physical requirements and working conditions:

  • Consistent with its obligationsunder the law, the University will provide reasonable accommodation to any employee with a disability who requires accommodation to perform the essential functions of the job.

Work standards:

  • Interpersonal Skills: Demonstrates the ability to work well with Stanford colleagues and clients and with external organizations.
  • Promote Culture of Safety: Demonstrates commitment to personal responsibility and value for environment, safety and security; communicates related concerns; uses and promotes safe behaviors based on training and lessons learned. Meets the applicable roles and responsibilities as described in the ESH Manual, Chapter 1—General Policy and Responsibilities:
  • Subject to and expected to comply with all applicable University policies and procedures, including but not limited to the personnel policies and other policies found in the University's Administrative Guide,

Job Requisition #: 3544